180 lines
50 KiB
HTML
180 lines
50 KiB
HTML
<html><head><title>Sketcher Module</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><link type='text/css' href='wiki.css' rel='stylesheet'></head><body><h1>Sketcher Module</h1><span class="mw-redirectedfrom">(Redirected from <a href="https://www.freecadweb.org/wiki/index.php?title=Sketcher_Module&redirect=no" class="mw-redirect" title="Sketcher Module">Sketcher Module</a>)</span></div>
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<div id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr"><div class="mw-parser-output"><div class="thumb tleft"><div class="thumbinner" style="width:302px;"><a href="https://www.freecadweb.org/wiki/index.php?title=File:FC_ConstrainedSketch.png" class="image"><img alt="" src="300px-FC_ConstrainedSketch.png" width="300" height="219" class="thumbimage" srcset="/wiki/images/thumb/7/71/FC_ConstrainedSketch.png/450px-FC_ConstrainedSketch.png 1.5x, /wiki/images/thumb/7/71/FC_ConstrainedSketch.png/600px-FC_ConstrainedSketch.png 2x" /></a> <div class="thumbcaption"><div class="magnify"><a href="https://www.freecadweb.org/wiki/index.php?title=File:FC_ConstrainedSketch.png" class="internal" title="Enlarge"></a></div>A basic, fully-constrained sketch</div></div></div>
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<p>The <b>Sketcher Workbench</b> is used to create 2D geometries intended for use in the <b><a href="PartDesign_Workbench.html" title="PartDesign Workbench">Part Design Workbench</a></b> and other workbenches.
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Generally a 2D geometry is considered the starting-point for most CAD models - a simple 2D sketch can be 'extruded' into a 3D shape, further 2D sketches can be used to create pockets in the surface of this shape and sketches can be used to define 'pads' (extrusions) on the surface of 3D objects.
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Along with <a href="Part_Module.html" title="Part Module">boolean operations</a>, the sketcher forms the core of generative solid shape design.
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</p><p>The Sketcher workbench itself features constraints - allowing 2D shapes to be constrained to precise geometrical definitions. And a constraint solver which calculates the constrained-extent of 2D geometry and allows interactive exploration of sketch degrees-of-freedom.
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</p>
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<div style="clear:both"></div>
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<p><br />
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</p>
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<div id="toc" class="toc"><div class="toctitle"><h2>Contents</h2></div>
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<ul>
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<li class="toclevel-1 tocsection-1"><a href="#Basics_of_constraint_sketching"><span class="tocnumber">1</span> <span class="toctext">Basics of constraint sketching</span></a>
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<ul>
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<li class="toclevel-2 tocsection-2"><a href="#Traditional_Drafting"><span class="tocnumber">1.1</span> <span class="toctext">Traditional Drafting</span></a></li>
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<li class="toclevel-2 tocsection-3"><a href="#Constraint_Sketching"><span class="tocnumber">1.2</span> <span class="toctext">Constraint Sketching</span></a></li>
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<li class="toclevel-2 tocsection-4"><a href="#What_are_constraints.3F"><span class="tocnumber">1.3</span> <span class="toctext">What are constraints?</span></a></li>
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</ul>
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</li>
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<li class="toclevel-1 tocsection-5"><a href="#What_the_Sketcher_is_not_good_for"><span class="tocnumber">2</span> <span class="toctext">What the Sketcher is not good for</span></a></li>
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<li class="toclevel-1 tocsection-6"><a href="#Sketching_Workflow"><span class="tocnumber">3</span> <span class="toctext">Sketching Workflow</span></a></li>
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<li class="toclevel-1 tocsection-7"><a href="#The_tools"><span class="tocnumber">4</span> <span class="toctext">The tools</span></a>
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<ul>
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<li class="toclevel-2"><a href="#Sketcher_Geometries"><span class="tocnumber">4.1</span> <span class="toctext">Sketcher Geometries</span></a></li>
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<li class="toclevel-2"><a href="#Sketcher_Constraints"><span class="tocnumber">4.2</span> <span class="toctext">Sketcher Constraints</span></a></li>
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<li class="toclevel-2"><a href="#Other"><span class="tocnumber">4.3</span> <span class="toctext">Other</span></a></li>
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<li class="toclevel-2"><a href="#Preferences"><span class="tocnumber">4.4</span> <span class="toctext">Preferences</span></a></li>
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</ul>
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</li>
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<li class="toclevel-1 tocsection-8"><a href="#Best_Practices"><span class="tocnumber">5</span> <span class="toctext">Best Practices</span></a></li>
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<li class="toclevel-1 tocsection-9"><a href="#Tutorials"><span class="tocnumber">6</span> <span class="toctext">Tutorials</span></a></li>
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</ul>
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</div>
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<h3><span class="mw-headline" id="Basics_of_constraint_sketching">Basics of constraint sketching</span></h3>
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<p>To explain how the Sketcher works, it may be useful to compare it to the "traditional" way of drafting.
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</p>
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<h4><span class="mw-headline" id="Traditional_Drafting">Traditional Drafting</span></h4>
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<p>The traditional way of CAD drafting inherits from the old <a rel="nofollow" class="external text" href="http://en.wikipedia.org/wiki/Drawing_board">drawing board</a>. <a rel="nofollow" class="external text" href="http://en.wikipedia.org/wiki/Multiview_orthographic_projection">Orthogonal (2D) views</a> are drawn manually and intended for producing technical drawings (also known as blueprints). Objects are drawn precisely to the intended size or dimension. If you want to draw an horizontal line 100mm in length starting at (0,0), you activate the line tool, either click on the screen or input the (0,0) coordinates for the first point, then make a second click or input the second point coordinates at (100,0). Or you will draw your line without regard to its position, and move it afterwards. When you've finished drawing your geometries, you add dimensions to them.
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</p>
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<h4><span class="mw-headline" id="Constraint_Sketching">Constraint Sketching</span></h4>
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<p>The <b>Sketcher</b> moves away from this logic. Objects do not need to be drawn exactly as you intend to, because they will be defined later on by constraints. Objects can be drawn loosely, and as long as they are unconstrained, can be modified. They are in effect "floating" and can be moved, stretched, rotated, scaled, and so on. This gives great flexibility in the design process.
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</p>
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<h4><span class="mw-headline" id="What_are_constraints.3F">What are constraints?</span></h4>
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<p>Instead of dimensions, Constraints are used to limit the degrees of freedom of an object. For example, a line without constraints has 4 <a href="#Degrees_Of_Freedom">Degrees Of Freedom</a> (abbreviated as " DOF "): it can be moved horizontally or vertically, it can be stretched, and it can be rotated.
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</p><p>Applying a horizontal or vertical constraint, or an angle constraint (relative to another line or to one of the axes), will limit its capacity to rotate, thus leaving it with 3 degrees of freedom. Locking one of its points in relation to the origin will remove another 2 degrees of freedom. And applying a dimension constraint will remove the last degree of freedom. The line is then considered <b>fully-constrained</b>.
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</p><p>Multiple objects can be constrained between one another. Two lines can be joined through one of their points with the coincident point constraint. An angle can be set between them, or they can be set perpendicular. A line can be tangent to an arc or a circle, and so on. A complex Sketch with multiple objects will have a number of different solutions, and making it <b>fully-constrained</b> means that just one of these possible solutions has been reached based on the applied constraints.
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</p><p>There are two kinds of constraints: geometric and dimensional. They are detailed in the <a href="#The_tools">'The tools'</a> section below.
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</p>
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<h3><span class="mw-headline" id="What_the_Sketcher_is_not_good_for">What the Sketcher is not good for</span></h3>
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<p>The Sketcher is not intended for producing 2D blueprints. Once sketches are used to generate a solid feature, they are automatically hidden. Constraints are only visible in Sketch edit mode.
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</p><p>If you only need to produce 2D views for print, and don't want to create 3D models, check out the <a href="Draft_Module.html" title="Draft Module">Draft workbench</a> (keep in mind though that the Draft workbench can also be useful to create 2D geometry not available in the Sketcher at this time, like B-Splines.)
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</p>
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<h3><span class="mw-headline" id="Sketching_Workflow">Sketching Workflow</span></h3>
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<p>A Sketch is always 2-dimensional (2D). To create a solid, a 2D Sketch of a single enclosed area is created and then either Padded or Revolved to add the 3rd dimension, creating a 3D solid from the 2D Sketch.
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</p><p>If the Sketch has segments that cross one another, places where a Point is not directly on a segment, or places where there are gaps between endpoints of adjacent segments, Pad or Revolve won't create a solid. The exception to this rule is that it doesn't apply to Construction (blue) Geometry.
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</p><p>Inside the enclosed area we can have smaller non-overlapping areas. These will become voids when the 3D solid is created.
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</p>
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<h3><span class="mw-headline" id="The_tools">The tools</span></h3>
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<p>The Sketcher Workbench tools are all located in the Sketcher menu that appears when you load the Sketcher Workbench.
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</p>
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<h4><span class="mw-headline" id="Sketcher_Geometries">Sketcher Geometries</span></h4>
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<p>These are tools for creating objects.
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</p>
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<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreatePoint.png" class="image"><img alt="Sketcher CreatePoint.png" src="32px-Sketcher_CreatePoint.png" width="32" height="32" srcset="/wiki/images/thumb/e/e9/Sketcher_CreatePoint.png/48px-Sketcher_CreatePoint.png 1.5x, /wiki/images/e/e9/Sketcher_CreatePoint.png 2x" /></a> <a href="Sketcher_Point.html" title="Sketcher Point">Point</a>: Draws a point.</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Line.png" class="image"><img alt="Sketcher Line.png" src="32px-Sketcher_Line.png" width="32" height="32" srcset="/wiki/images/thumb/7/72/Sketcher_Line.png/48px-Sketcher_Line.png 1.5x, /wiki/images/7/72/Sketcher_Line.png 2x" /></a> <a href="Sketcher_Line.html" title="Sketcher Line">Line by 2 point</a>: Draws a line segment from 2 points.</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Arc.png" class="image"><img alt="Sketcher Arc.png" src="32px-Sketcher_Arc.png" width="32" height="32" srcset="/wiki/images/thumb/1/15/Sketcher_Arc.png/48px-Sketcher_Arc.png 1.5x, /wiki/images/1/15/Sketcher_Arc.png 2x" /></a> <a href="Sketcher_Arc.html" title="Sketcher Arc">Arc</a>: Draws an arc segment from center, radius, start angle and end angle.</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateArc3Point.png" class="image"><img alt="Sketcher CreateArc3Point.png" src="32px-Sketcher_CreateArc3Point.png" width="32" height="32" srcset="/wiki/images/thumb/7/74/Sketcher_CreateArc3Point.png/48px-Sketcher_CreateArc3Point.png 1.5x, /wiki/images/7/74/Sketcher_CreateArc3Point.png 2x" /></a> <a href="Sketcher_Arc3Point.html" title="Sketcher Arc3Point">Arc by 3 Point</a>: Draws an arc segment from two endpoints and another point on the circumference.</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Circle.png" class="image"><img alt="Sketcher Circle.png" src="32px-Sketcher_Circle.png" width="32" height="32" srcset="/wiki/images/thumb/d/da/Sketcher_Circle.png/48px-Sketcher_Circle.png 1.5x, /wiki/images/d/da/Sketcher_Circle.png 2x" /></a> <a href="Sketcher_Circle.html" title="Sketcher Circle">Circle</a>: Draws a circle from center and radius.</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateCircle3Point.png" class="image"><img alt="Sketcher CreateCircle3Point.png" src="32px-Sketcher_CreateCircle3Point.png" width="32" height="32" srcset="/wiki/images/thumb/2/27/Sketcher_CreateCircle3Point.png/48px-Sketcher_CreateCircle3Point.png 1.5x, /wiki/images/2/27/Sketcher_CreateCircle3Point.png 2x" /></a> <a href="Sketcher_Circle3Point.html" title="Sketcher Circle3Point">Circle by 3 Point</a> : Draws a circle from three points on the circumference.</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Conics.png" class="image"><img alt="Sketcher Conics.png" src="32px-Sketcher_Conics.png" width="32" height="32" srcset="/wiki/images/thumb/e/ec/Sketcher_Conics.png/48px-Sketcher_Conics.png 1.5x, /wiki/images/e/ec/Sketcher_Conics.png 2x" /></a> <a href="Sketcher_Conic_Sections.html" title="Sketcher Conic Sections">Conic sections</a>:
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<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateEllipse.png" class="image"><img alt="Sketcher CreateEllipse.png" src="32px-Sketcher_CreateEllipse.png" width="32" height="32" srcset="/wiki/images/thumb/7/76/Sketcher_CreateEllipse.png/48px-Sketcher_CreateEllipse.png 1.5x, /wiki/images/7/76/Sketcher_CreateEllipse.png 2x" /></a> <a href="Sketcher_Ellipse.html" title="Sketcher Ellipse">Ellipse by center</a> : Draws an ellipse by center point, major radius point and minor radius point. (v0.15)</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateEllipse_3points.png" class="image"><img alt="Sketcher CreateEllipse 3points.png" src="32px-Sketcher_CreateEllipse_3points.png" width="32" height="32" srcset="/wiki/images/thumb/a/ac/Sketcher_CreateEllipse_3points.png/48px-Sketcher_CreateEllipse_3points.png 1.5x, /wiki/images/a/ac/Sketcher_CreateEllipse_3points.png 2x" /></a> <a href="Sketcher_Ellipse_by_3_Points.html" title="Sketcher Ellipse by 3 Points">Ellipse by 3 points</a> : Draws an ellipse by major diameter (2 points) and minor radius point. (v0.15)</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Elliptical_Arc.png" class="image"><img alt="Sketcher Elliptical Arc.png" src="32px-Sketcher_Elliptical_Arc.png" width="32" height="32" srcset="/wiki/images/thumb/1/13/Sketcher_Elliptical_Arc.png/48px-Sketcher_Elliptical_Arc.png 1.5x, /wiki/images/1/13/Sketcher_Elliptical_Arc.png 2x" /></a> <a href="Sketcher_Arc_of_Ellipse.html" title="Sketcher Arc of Ellipse">Arc of ellipse</a> : Draws an arc of ellipse by center point, major radius point, starting point and ending point. (v0.15)</li>
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<li><a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Hyperbolic_Arc.png" class="image"><img alt="Sketcher Hyperbolic Arc.png" src="32px-Sketcher_Hyperbolic_Arc.png" width="32" height="32" srcset="/wiki/images/thumb/8/89/Sketcher_Hyperbolic_Arc.png/48px-Sketcher_Hyperbolic_Arc.png 1.5x, /wiki/images/8/89/Sketcher_Hyperbolic_Arc.png 2x" /></a> <a href="https://www.freecadweb.org/wiki/index.php?title=Sketcher_Arc_of_Hyperbola&action=edit&redlink=1" class="new" title="Sketcher Arc of Hyperbola (page does not exist)">Arc of hyperbola</a>: Draws an arc of hyperbola. (v0.17)</li>
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<li><a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Parabolic_Arc.png" class="image"><img alt="Sketcher Parabolic Arc.png" src="32px-Sketcher_Parabolic_Arc.png" width="32" height="32" srcset="/wiki/images/thumb/e/ec/Sketcher_Parabolic_Arc.png/48px-Sketcher_Parabolic_Arc.png 1.5x, /wiki/images/e/ec/Sketcher_Parabolic_Arc.png 2x" /></a> <a href="https://www.freecadweb.org/wiki/index.php?title=Sketcher_Arc_of_Parabola&action=edit&redlink=1" class="new" title="Sketcher Arc of Parabola (page does not exist)">Arc of parabola</a>: Draws an arc of parabola. (v0.17)</li></ul></li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreatePolyline.png" class="image"><img alt="Sketcher CreatePolyline.png" src="32px-Sketcher_CreatePolyline.png" width="32" height="32" srcset="/wiki/images/thumb/a/aa/Sketcher_CreatePolyline.png/48px-Sketcher_CreatePolyline.png 1.5x, /wiki/images/a/aa/Sketcher_CreatePolyline.png 2x" /></a> <a href="Sketcher_Polyline.html" title="Sketcher Polyline">Polyline (multiple-point line)</a>: Draws a line made of multiple line segments. Pressing the M key while drawing a Polyline toggles between the different polyline modes. </li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateRectangle.png" class="image"><img alt="Sketcher CreateRectangle.png" src="32px-Sketcher_CreateRectangle.png" width="32" height="32" srcset="/wiki/images/thumb/a/ad/Sketcher_CreateRectangle.png/48px-Sketcher_CreateRectangle.png 1.5x, /wiki/images/a/ad/Sketcher_CreateRectangle.png 2x" /></a> <a href="Sketcher_Rectangle.html" title="Sketcher Rectangle">Rectangle</a>: Draws a rectangle from 2 opposite points.</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateTriangle.png" class="image"><img alt="Sketcher CreateTriangle.png" src="32px-Sketcher_CreateTriangle.png" width="32" height="32" srcset="/wiki/images/thumb/d/d7/Sketcher_CreateTriangle.png/48px-Sketcher_CreateTriangle.png 1.5x, /wiki/images/d/d7/Sketcher_CreateTriangle.png 2x" /></a> <a href="Sketcher_Triangle.html" title="Sketcher Triangle">Triangle</a>: Draws a regular triangle inscribed in a construction geometry circle. (v0.15)</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateSquare.png" class="image"><img alt="Sketcher CreateSquare.png" src="32px-Sketcher_CreateSquare.png" width="32" height="32" srcset="/wiki/images/thumb/8/85/Sketcher_CreateSquare.png/48px-Sketcher_CreateSquare.png 1.5x, /wiki/images/8/85/Sketcher_CreateSquare.png 2x" /></a> <a href="Sketcher_Square.html" title="Sketcher Square">Square</a>: Draws a regular square inscribed in a construction geometry circle. (v0.15)</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreatePentagon.png" class="image"><img alt="Sketcher CreatePentagon.png" src="32px-Sketcher_CreatePentagon.png" width="32" height="32" srcset="/wiki/images/thumb/c/c0/Sketcher_CreatePentagon.png/48px-Sketcher_CreatePentagon.png 1.5x, /wiki/images/c/c0/Sketcher_CreatePentagon.png 2x" /></a> <a href="Sketcher_Pentagon.html" title="Sketcher Pentagon">Pentagon</a>: Draws a regular pentagon inscribed in a construction geometry circle. (v0.15)</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateHexagon.png" class="image"><img alt="Sketcher CreateHexagon.png" src="32px-Sketcher_CreateHexagon.png" width="32" height="32" srcset="/wiki/images/thumb/d/d8/Sketcher_CreateHexagon.png/48px-Sketcher_CreateHexagon.png 1.5x, /wiki/images/d/d8/Sketcher_CreateHexagon.png 2x" /></a> <a href="Sketcher_Hexagon.html" title="Sketcher Hexagon">Hexagon</a>: Draws a regular hexagon inscribed in a construction geometry circle. (v0.15)</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateHeptagon.png" class="image"><img alt="Sketcher CreateHeptagon.png" src="32px-Sketcher_CreateHeptagon.png" width="32" height="32" srcset="/wiki/images/thumb/d/df/Sketcher_CreateHeptagon.png/48px-Sketcher_CreateHeptagon.png 1.5x, /wiki/images/d/df/Sketcher_CreateHeptagon.png 2x" /></a> <a href="Sketcher_Heptagon.html" title="Sketcher Heptagon">Heptagon</a>: Draws a regular heptagon inscribed in a construction geometry circle. (v0.15)</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateOctagon.png" class="image"><img alt="Sketcher CreateOctagon.png" src="32px-Sketcher_CreateOctagon.png" width="32" height="32" srcset="/wiki/images/thumb/0/00/Sketcher_CreateOctagon.png/48px-Sketcher_CreateOctagon.png 1.5x, /wiki/images/0/00/Sketcher_CreateOctagon.png 2x" /></a> <a href="Sketcher_Octagon.html" title="Sketcher Octagon">Octagon</a>: Draws a regular octagon inscribed in a construction geometry circle. (v0.15)</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateSlot.png" class="image"><img alt="Sketcher CreateSlot.png" src="32px-Sketcher_CreateSlot.png" width="32" height="32" srcset="/wiki/images/thumb/1/16/Sketcher_CreateSlot.png/48px-Sketcher_CreateSlot.png 1.5x, /wiki/images/1/16/Sketcher_CreateSlot.png 2x" /></a> <a href="Sketcher_Slot.html" title="Sketcher Slot">Slot</a>: Draws an oval by selecting the center of one semicircle and an endpoint of the other semicircle.</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CreateFillet.png" class="image"><img alt="Sketcher CreateFillet.png" src="32px-Sketcher_CreateFillet.png" width="32" height="32" srcset="/wiki/images/thumb/f/f0/Sketcher_CreateFillet.png/48px-Sketcher_CreateFillet.png 1.5x, /wiki/images/f/f0/Sketcher_CreateFillet.png 2x" /></a> <a href="Sketcher_Fillet.html" title="Sketcher Fillet">Fillet</a>: Makes a fillet between two lines joined at one point. Select both lines or click on the corner point, then activate the tool.</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Trimming.png" class="image"><img alt="Sketcher Trimming.png" src="32px-Sketcher_Trimming.png" width="32" height="32" srcset="/wiki/images/thumb/2/2c/Sketcher_Trimming.png/48px-Sketcher_Trimming.png 1.5x, /wiki/images/2/2c/Sketcher_Trimming.png 2x" /></a> <a href="Sketcher_Trimming.html" title="Sketcher Trimming">Trimming</a>: Trims a line, circle or arc with respect to the clicked point.</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_External.png" class="image"><img alt="Sketcher External.png" src="32px-Sketcher_External.png" width="32" height="32" srcset="/wiki/images/thumb/b/b5/Sketcher_External.png/48px-Sketcher_External.png 1.5x, /wiki/images/b/b5/Sketcher_External.png 2x" /></a> <a href="Sketcher_External.html" title="Sketcher External">External Geometry</a>: Creates an edge linked to external geometry.</li>
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<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_ToggleConstruction.png" class="image"><img alt="Sketcher ToggleConstruction.png" src="32px-Sketcher_ToggleConstruction.png" width="32" height="32" srcset="/wiki/images/thumb/4/4f/Sketcher_ToggleConstruction.png/48px-Sketcher_ToggleConstruction.png 1.5x, /wiki/images/4/4f/Sketcher_ToggleConstruction.png 2x" /></a> <a href="Sketcher_ConstructionMode.html" title="Sketcher ConstructionMode">Construction Mode</a>: A construction object will be shown in blue and will not be used in a 3D geometry operation. It is only visible while editing the Sketch that contains it. Selecting existing Sketcher geometry and then clicking this tool toggles that geometry between regular and construction mode. Selecting this tool when no Sketcher geometry is selected changes the mode (regular vs. construction) in which future objects will be created.</li></ul>
|
||
<h4><span class="mw-headline" id="Sketcher_Constraints">Sketcher Constraints</span></h4>
|
||
<p>Constraints are used to define lengths, set rules between sketch elements, and to lock the sketch along the vertical and horizontal axes. Some constraints require the <a href="Sketcher_helper_constraint.html" title="Sketcher helper constraint">Helper constraints</a>
|
||
</p><p><b>Not associated with numeric data</b>
|
||
</p>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_PointOnPoint.png" class="image"><img alt="Constraint PointOnPoint.png" src="32px-Constraint_PointOnPoint.png" width="32" height="32" srcset="/wiki/images/thumb/e/e3/Constraint_PointOnPoint.png/48px-Constraint_PointOnPoint.png 1.5x, /wiki/images/e/e3/Constraint_PointOnPoint.png 2x" /></a> <a href="Constraint_PointOnPoint.html" title="Constraint PointOnPoint">Coincident</a>: Affixes a point onto (coincident with) one or more other points.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_PointOnObject.png" class="image"><img alt="Constraint PointOnObject.png" src="32px-Constraint_PointOnObject.png" width="32" height="32" srcset="/wiki/images/thumb/7/7d/Constraint_PointOnObject.png/48px-Constraint_PointOnObject.png 1.5x, /wiki/images/7/7d/Constraint_PointOnObject.png 2x" /></a> <a href="Constraint_PointOnObject.html" title="Constraint PointOnObject">Point On Object</a>: Affixes a point onto another object such as a line, arc, or axis.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_Vertical.png" class="image"><img alt="Constraint Vertical.png" src="32px-Constraint_Vertical.png" width="32" height="32" srcset="/wiki/images/thumb/d/d6/Constraint_Vertical.png/48px-Constraint_Vertical.png 1.5x, /wiki/images/d/d6/Constraint_Vertical.png 2x" /></a> <a href="Constraint_Vertical.html" title="Constraint Vertical">Vertical</a>: Constrains the selected lines or polyline elements to a true vertical orientation. More than one object can be selected before applying this constraint.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_Horizontal.png" class="image"><img alt="Constraint Horizontal.png" src="32px-Constraint_Horizontal.png" width="32" height="32" srcset="/wiki/images/thumb/3/3f/Constraint_Horizontal.png/48px-Constraint_Horizontal.png 1.5x, /wiki/images/3/3f/Constraint_Horizontal.png 2x" /></a> <a href="Constraint_Horizontal.html" title="Constraint Horizontal">Horizontal</a>: Constrains the selected lines or polyline elements to a true horizontal orientation. More than one object can be selected before applying this constraint.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_Parallel.png" class="image"><img alt="Constraint Parallel.png" src="32px-Constraint_Parallel.png" width="32" height="32" srcset="/wiki/images/thumb/0/0b/Constraint_Parallel.png/48px-Constraint_Parallel.png 1.5x, /wiki/images/0/0b/Constraint_Parallel.png 2x" /></a> <a href="Constraint_Parallel.html" title="Constraint Parallel">Parallel</a>: Constrains two or more lines parallel to one another.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_Perpendicular.png" class="image"><img alt="Constraint Perpendicular.png" src="32px-Constraint_Perpendicular.png" width="32" height="32" srcset="/wiki/images/thumb/3/39/Constraint_Perpendicular.png/48px-Constraint_Perpendicular.png 1.5x, /wiki/images/3/39/Constraint_Perpendicular.png 2x" /></a> <a href="Constraint_Perpendicular.html" title="Constraint Perpendicular">Perpendicular</a>: Constrains two lines perpendicular to one another, or constrains a line perpendicular to an arc endpoint.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_Tangent.png" class="image"><img alt="Constraint Tangent.png" src="32px-Constraint_Tangent.png" width="32" height="32" srcset="/wiki/images/thumb/1/1a/Constraint_Tangent.png/48px-Constraint_Tangent.png 1.5x, /wiki/images/1/1a/Constraint_Tangent.png 2x" /></a> <a href="Sketcher_ConstrainTangent.html" title="Sketcher ConstrainTangent">Tangent</a>: Creates a tangent constraint between two selected entities, or a co-linear constraint between two line segments. A line segment does not have to lie directly on an arc or circle to be constrained tangent to that arc or circle.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_EqualLength.png" class="image"><img alt="Constraint EqualLength.png" src="32px-Constraint_EqualLength.png" width="32" height="32" srcset="/wiki/images/thumb/b/bb/Constraint_EqualLength.png/48px-Constraint_EqualLength.png 1.5x, /wiki/images/b/bb/Constraint_EqualLength.png 2x" /></a> <a href="Constraint_EqualLength.html" title="Constraint EqualLength">Equal Length</a>: Constrains two selected entities equal to one another. If used on circles or arcs their radii will be set equal.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_Symmetric.png" class="image"><img alt="Constraint Symmetric.png" src="32px-Constraint_Symmetric.png" width="32" height="32" srcset="/wiki/images/thumb/b/be/Constraint_Symmetric.png/48px-Constraint_Symmetric.png 1.5x, /wiki/images/b/be/Constraint_Symmetric.png 2x" /></a> <a href="Constraint_Symmetric.html" title="Constraint Symmetric">Symmetric</a>: Constrains two points symmetrically about a line, or constrains the first two selected points symmetrically about a third selected point.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_ConstrainBlock.png" class="image"><img alt="Sketcher ConstrainBlock.png" src="32px-Sketcher_ConstrainBlock.png" width="32" height="34" srcset="/wiki/images/thumb/e/e8/Sketcher_ConstrainBlock.png/48px-Sketcher_ConstrainBlock.png 1.5x, /wiki/images/e/e8/Sketcher_ConstrainBlock.png 2x" /></a> <a href="https://www.freecadweb.org/wiki/index.php?title=Sketcher_ConstrainBlock&action=edit&redlink=1" class="new" title="Sketcher ConstrainBlock (page does not exist)">Constrain Block</a>: v 0.17 Basically allows to block a geometric element in place with a single constraint. I should be particularly useful to work with B-Splines. See <a rel="nofollow" class="external free" href="https://forum.freecadweb.org/viewtopic.php?f=9&t=26572">https://forum.freecadweb.org/viewtopic.php?f=9&t=26572</a></li></ul>
|
||
<p><b>Associated with numeric data</b>
|
||
</p><p>For these constraints you can use the <a href="Expressions.html" title="Expressions">expressions</a>. The data may be taken from a <a href="Spreadsheet_Workbench.html" title="Spreadsheet Workbench">spreadsheet</a>.
|
||
</p>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_ConstrainLock.png" class="image"><img alt="Sketcher ConstrainLock.png" src="32px-Sketcher_ConstrainLock.png" width="32" height="32" srcset="/wiki/images/thumb/6/6c/Sketcher_ConstrainLock.png/48px-Sketcher_ConstrainLock.png 1.5x, /wiki/images/6/6c/Sketcher_ConstrainLock.png 2x" /></a> <a href="Constraint_Lock.html" title="Constraint Lock">Lock</a>: Constrains the selected item by setting vertical and horizontal distances relative to the origin, thereby locking the location of that item. These constraint distances can be edited later.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_HorizontalDistance.png" class="image"><img alt="Constraint HorizontalDistance.png" src="32px-Constraint_HorizontalDistance.png" width="32" height="32" srcset="/wiki/images/thumb/5/57/Constraint_HorizontalDistance.png/48px-Constraint_HorizontalDistance.png 1.5x, /wiki/images/5/57/Constraint_HorizontalDistance.png 2x" /></a> <a href="Constraint_HorizontalDistance.html" title="Constraint HorizontalDistance">Horizontal Distance</a>: Fixes the horizontal distance between two points or line endpoints. If only one item is selected, the distance is set to the origin. </li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_VerticalDistance.png" class="image"><img alt="Constraint VerticalDistance.png" src="32px-Constraint_VerticalDistance.png" width="32" height="32" srcset="/wiki/images/thumb/b/ba/Constraint_VerticalDistance.png/48px-Constraint_VerticalDistance.png 1.5x, /wiki/images/b/ba/Constraint_VerticalDistance.png 2x" /></a> <a href="Constraint_VerticalDistance.html" title="Constraint VerticalDistance">Vertical Distance</a>: Fixes the vertical distance between 2 points or line endpoints. If only one item is selected, the distance is set to the origin.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_Length.png" class="image"><img alt="Constraint Length.png" src="32px-Constraint_Length.png" width="32" height="32" srcset="/wiki/images/thumb/a/a3/Constraint_Length.png/48px-Constraint_Length.png 1.5x, /wiki/images/a/a3/Constraint_Length.png 2x" /></a> <a href="Constraint_Length.html" title="Constraint Length">Length</a>: Defines the distance of a selected line by constraining its length, or defines the distance between two points by constraining the distance between them.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_Radius.png" class="image"><img alt="Constraint Radius.png" src="32px-Constraint_Radius.png" width="32" height="32" srcset="/wiki/images/thumb/5/58/Constraint_Radius.png/48px-Constraint_Radius.png 1.5x, /wiki/images/5/58/Constraint_Radius.png 2x" /></a> <a href="Constraint_Radius.html" title="Constraint Radius">Radius</a>: Defines the radius of a selected arc or circle by constraining the radius.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_InternalAngle.png" class="image"><img alt="Constraint InternalAngle.png" src="32px-Constraint_InternalAngle.png" width="32" height="32" srcset="/wiki/images/thumb/7/75/Constraint_InternalAngle.png/48px-Constraint_InternalAngle.png 1.5x, /wiki/images/7/75/Constraint_InternalAngle.png 2x" /></a> <a href="Constraint_InternalAngle.html" title="Constraint InternalAngle">Internal Angle</a>: Defines the internal angle between two selected lines.</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_SnellsLaw.png" class="image"><img alt="Constraint SnellsLaw.png" src="32px-Constraint_SnellsLaw.png" width="32" height="32" srcset="/wiki/images/thumb/9/9e/Constraint_SnellsLaw.png/48px-Constraint_SnellsLaw.png 1.5x, /wiki/images/9/9e/Constraint_SnellsLaw.png 2x" /></a> <a href="Constraint_SnellsLaw.html" title="Constraint SnellsLaw">Snell's Law</a>: Constrains two lines to obey a refraction law to simulate the light going through an interface. (v 0.15)</li>
|
||
<li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_InternalAlignment.png" class="image"><img alt="Constraint InternalAlignment.png" src="32px-Constraint_InternalAlignment.png" width="32" height="32" srcset="/wiki/images/thumb/3/33/Constraint_InternalAlignment.png/48px-Constraint_InternalAlignment.png 1.5x, /wiki/images/3/33/Constraint_InternalAlignment.png 2x" /></a> <a href="Constraint_Internal_Alignment.html" title="Constraint Internal Alignment">Internal Alignment</a>: Aligns selected elements to selected shape (e.g. a line to become major axis of an ellipse).</li></ul>
|
||
<p><br />
|
||
</p>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_ToggleConstraint.png" class="image"><img alt="Sketcher ToggleConstraint.png" src="32px-Sketcher_ToggleConstraint.png" width="32" height="32" srcset="/wiki/images/thumb/a/a9/Sketcher_ToggleConstraint.png/48px-Sketcher_ToggleConstraint.png 1.5x, /wiki/images/a/a9/Sketcher_ToggleConstraint.png 2x" /></a> <a href="Sketcher_ToggleConstraint.html" title="Sketcher ToggleConstraint">Toggle Constraint</a>: Toggles the toolbar or the selected constraints to/from reference mode. v0.16</li></ul>
|
||
<h4><span class="mw-headline" id="Other">Other</span></h4>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_NewSketch.png" class="image"><img alt="Sketcher NewSketch.png" src="32px-Sketcher_NewSketch.png" width="32" height="32" srcset="/wiki/images/thumb/4/46/Sketcher_NewSketch.png/48px-Sketcher_NewSketch.png 1.5x, /wiki/images/4/46/Sketcher_NewSketch.png 2x" /></a> <a href="Sketcher_NewSketch.html" title="Sketcher NewSketch">New sketch</a>: Creates a new sketch on a selected face or plane. If no face is selected while this tool is executed the user is prompted to select a plane from a pop-up window.</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_EditSketch.png" class="image"><img alt="Sketcher EditSketch.png" src="32px-Sketcher_EditSketch.png" width="32" height="32" srcset="/wiki/images/thumb/4/4c/Sketcher_EditSketch.png/48px-Sketcher_EditSketch.png 1.5x, /wiki/images/4/4c/Sketcher_EditSketch.png 2x" /></a> <a href="Sketcher_EditSketch.html" title="Sketcher EditSketch">Edit sketch</a>: Edit the selected Sketch.</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_LeaveSketch.png" class="image"><img alt="Sketcher LeaveSketch.png" src="32px-Sketcher_LeaveSketch.png" width="32" height="32" srcset="/wiki/images/thumb/c/ce/Sketcher_LeaveSketch.png/48px-Sketcher_LeaveSketch.png 1.5x, /wiki/images/c/ce/Sketcher_LeaveSketch.png 2x" /></a> <a href="Sketcher_LeaveSketch.html" title="Sketcher LeaveSketch">Leave sketch</a>: Leave the Sketch editing mode.</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_ViewSketch.png" class="image"><img alt="Sketcher ViewSketch.png" src="32px-Sketcher_ViewSketch.png" width="32" height="32" srcset="/wiki/images/thumb/4/40/Sketcher_ViewSketch.png/48px-Sketcher_ViewSketch.png 1.5x, /wiki/images/4/40/Sketcher_ViewSketch.png 2x" /></a> <a href="Sketcher_ViewSketch.html" title="Sketcher ViewSketch">View sketch</a>: Sets the model view perpendicular to the sketch plane.</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_MapSketch.png" class="image"><img alt="Sketcher MapSketch.png" src="32px-Sketcher_MapSketch.png" width="32" height="32" srcset="/wiki/images/thumb/4/45/Sketcher_MapSketch.png/48px-Sketcher_MapSketch.png 1.5x, /wiki/images/4/45/Sketcher_MapSketch.png 2x" /></a> <a href="Sketcher_MapSketch.html" title="Sketcher MapSketch">Map sketch to face</a>: Maps a sketch to the previously selected face of a solid.</li></ul>
|
||
<ul><li> <a href="Sketcher_Reorient.html" title="Sketcher Reorient">Reorient sketch </a>: Allows you to change the position of a sketch</li></ul>
|
||
<ul><li> <a href="Sketcher_Validate.html" title="Sketcher Validate">Validate sketch</a>: It allows you to check if there are in the tolerance of different points and to match them.</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_MergeSketch.png" class="image"><img alt="Sketcher MergeSketch.png" src="32px-Sketcher_MergeSketch.png" width="32" height="32" srcset="/wiki/images/thumb/7/79/Sketcher_MergeSketch.png/48px-Sketcher_MergeSketch.png 1.5x, /wiki/images/7/79/Sketcher_MergeSketch.png 2x" /></a> <a href="Sketcher_MergeSketch.html" title="Sketcher MergeSketch">Merge sketches</a>: Merge two or more sketches. [v 0.15]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_MirrorSketch.png" class="image"><img alt="Sketcher MirrorSketch.png" src="32px-Sketcher_MirrorSketch.png" width="32" height="32" srcset="/wiki/images/thumb/4/4c/Sketcher_MirrorSketch.png/48px-Sketcher_MirrorSketch.png 1.5x, /wiki/images/4/4c/Sketcher_MirrorSketch.png 2x" /></a> <a href="Sketcher_MirrorSketch.html" title="Sketcher MirrorSketch">Mirror sketch</a>: Mirror a sketch along the x-axis, the y-axis or the origin [v 0.16]</li></ul>
|
||
<p><br />
|
||
</p>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_CloseShape.png" class="image"><img alt="Sketcher CloseShape.png" src="32px-Sketcher_CloseShape.png" width="32" height="32" srcset="/wiki/images/thumb/4/49/Sketcher_CloseShape.png/48px-Sketcher_CloseShape.png 1.5x, /wiki/images/4/49/Sketcher_CloseShape.png 2x" /></a> <a href="Sketcher_CloseShape.html" title="Sketcher CloseShape">Close Shape</a>: Creates a closed shape by applying coincident constraints to endpoints [v 0.15]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_ConnectLines.png" class="image"><img alt="Sketcher ConnectLines.png" src="32px-Sketcher_ConnectLines.png" width="32" height="32" srcset="/wiki/images/thumb/5/5c/Sketcher_ConnectLines.png/48px-Sketcher_ConnectLines.png 1.5x, /wiki/images/5/5c/Sketcher_ConnectLines.png 2x" /></a> <a href="Sketcher_ConnectLines.html" title="Sketcher ConnectLines">Connect Edges</a>: Connect sketcher elements by applying coincident constraints to endpoints [v 0.15]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_SelectConstraints.png" class="image"><img alt="Sketcher SelectConstraints.png" src="32px-Sketcher_SelectConstraints.png" width="32" height="32" srcset="/wiki/images/thumb/5/58/Sketcher_SelectConstraints.png/48px-Sketcher_SelectConstraints.png 1.5x, /wiki/images/5/58/Sketcher_SelectConstraints.png 2x" /></a> <a href="Sketcher_SelectConstraints.html" title="Sketcher SelectConstraints">Select Constraints</a>: Selects the constraints of a sketcher element [v 0.15]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_SelectOrigin.png" class="image"><img alt="Sketcher SelectOrigin.png" src="32px-Sketcher_SelectOrigin.png" width="32" height="32" srcset="/wiki/images/thumb/0/08/Sketcher_SelectOrigin.png/48px-Sketcher_SelectOrigin.png 1.5x, /wiki/images/0/08/Sketcher_SelectOrigin.png 2x" /></a> <a href="Sketcher_SelectOrigin.html" title="Sketcher SelectOrigin">Select Origin</a>: Selects the origin of a sketch [v 0.15]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_SelectVerticalAxis.png" class="image"><img alt="Sketcher SelectVerticalAxis.png" src="32px-Sketcher_SelectVerticalAxis.png" width="32" height="32" srcset="/wiki/images/thumb/d/d9/Sketcher_SelectVerticalAxis.png/48px-Sketcher_SelectVerticalAxis.png 1.5x, /wiki/images/d/d9/Sketcher_SelectVerticalAxis.png 2x" /></a> <a href="Sketcher_SelectVerticalAxis.html" title="Sketcher SelectVerticalAxis">Select Vertical Axis</a>: Selects the vertical axis of a sketch [v 0.15]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_SelectHorizontalAxis.png" class="image"><img alt="Sketcher SelectHorizontalAxis.png" src="32px-Sketcher_SelectHorizontalAxis.png" width="32" height="32" srcset="/wiki/images/thumb/c/cc/Sketcher_SelectHorizontalAxis.png/48px-Sketcher_SelectHorizontalAxis.png 1.5x, /wiki/images/c/cc/Sketcher_SelectHorizontalAxis.png 2x" /></a> <a href="Sketcher_SelectHorizontalAxis.html" title="Sketcher SelectHorizontalAxis">Select Horizontal Axis</a>: Selects the horizontal axis of a sketch [v 0.15]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_SelectRedundantConstraints.png" class="image"><img alt="Sketcher SelectRedundantConstraints.png" src="32px-Sketcher_SelectRedundantConstraints.png" width="32" height="32" srcset="/wiki/images/thumb/5/5a/Sketcher_SelectRedundantConstraints.png/48px-Sketcher_SelectRedundantConstraints.png 1.5x, /wiki/images/5/5a/Sketcher_SelectRedundantConstraints.png 2x" /></a> <a href="Sketcher_SelectRedundantConstraints.html" title="Sketcher SelectRedundantConstraints">Select Redundant Constraints</a>: Selects redundant constraints of a sketch [v 0.15]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_SelectConflictingConstraints.png" class="image"><img alt="Sketcher SelectConflictingConstraints.png" src="32px-Sketcher_SelectConflictingConstraints.png" width="32" height="32" srcset="/wiki/images/thumb/f/f6/Sketcher_SelectConflictingConstraints.png/48px-Sketcher_SelectConflictingConstraints.png 1.5x, /wiki/images/f/f6/Sketcher_SelectConflictingConstraints.png 2x" /></a> <a href="Sketcher_SelectConflictingConstraints.html" title="Sketcher SelectConflictingConstraints">Select Conflicting Constraints</a>: Selects conflicting constraints of a sketch [v 0.15]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_SelectElementsAssociatedWithConstraints.png" class="image"><img alt="Sketcher SelectElementsAssociatedWithConstraints.png" src="32px-Sketcher_SelectElementsAssociatedWithConstraints.png" width="32" height="32" srcset="/wiki/images/thumb/f/fc/Sketcher_SelectElementsAssociatedWithConstraints.png/48px-Sketcher_SelectElementsAssociatedWithConstraints.png 1.5x, /wiki/images/f/fc/Sketcher_SelectElementsAssociatedWithConstraints.png 2x" /></a> <a href="Sketcher_SelectElementsAssociatedWithConstraints.html" title="Sketcher SelectElementsAssociatedWithConstraints">Select Elements Associated with constraints</a>: Select sketcher elements associated with constraints [v 0.15]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Element_Ellipse_All.png" class="image"><img alt="Sketcher Element Ellipse All.png" src="32px-Sketcher_Element_Ellipse_All.png" width="32" height="32" srcset="/wiki/images/thumb/f/fe/Sketcher_Element_Ellipse_All.png/48px-Sketcher_Element_Ellipse_All.png 1.5x, /wiki/images/f/fe/Sketcher_Element_Ellipse_All.png 2x" /></a> <a href="Sketcher_Show_Hide_Internal_Geometry.html" title="Sketcher Show Hide Internal Geometry">Show/Hide internal geometry</a>: Recreates missing/deletes unneeded geometry aligned to internal geometry of a selected element (applicable only to ellipse so far). [v 0.15]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Symmetry.png" class="image"><img alt="Sketcher Symmetry.png" src="32px-Sketcher_Symmetry.png" width="32" height="32" srcset="/wiki/images/thumb/1/12/Sketcher_Symmetry.png/48px-Sketcher_Symmetry.png 1.5x, /wiki/images/1/12/Sketcher_Symmetry.png 2x" /></a> <a href="Sketcher_Symmetry.html" title="Sketcher Symmetry">Symmetry</a>: Copies a sketcher element symmetrical to a chosen line [v 0.16]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Clone.png" class="image"><img alt="Sketcher Clone.png" src="32px-Sketcher_Clone.png" width="32" height="32" srcset="/wiki/images/thumb/a/ad/Sketcher_Clone.png/48px-Sketcher_Clone.png 1.5x, /wiki/images/a/ad/Sketcher_Clone.png 2x" /></a> <a href="Sketcher_Clone.html" title="Sketcher Clone">Clone</a>: Clones a sketcher element [v 0.16]</li></ul>
|
||
<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_Copy.png" class="image"><img alt="Sketcher Copy.png" src="32px-Sketcher_Copy.png" width="32" height="32" srcset="/wiki/images/thumb/8/86/Sketcher_Copy.png/48px-Sketcher_Copy.png 1.5x, /wiki/images/8/86/Sketcher_Copy.png 2x" /></a> <a href="Sketcher_Copy.html" title="Sketcher Copy">Copy</a>: Copies a sketcher element [v 0.16]</li></ul>
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<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_RectangularArray.png" class="image"><img alt="Sketcher RectangularArray.png" src="32px-Sketcher_RectangularArray.png" width="32" height="32" srcset="/wiki/images/thumb/c/c4/Sketcher_RectangularArray.png/48px-Sketcher_RectangularArray.png 1.5x, /wiki/images/c/c4/Sketcher_RectangularArray.png 2x" /></a> <a href="Sketcher_RectangularArray.html" title="Sketcher RectangularArray">Rectangular Array</a>: Creates an array of selected sketcher elements [v 0.16]</li></ul>
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<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Sketcher_SwitchVirtualSpace.png" class="image"><img alt="Sketcher SwitchVirtualSpace.png" src="32px-Sketcher_SwitchVirtualSpace.png" width="32" height="32" srcset="/wiki/images/thumb/e/ea/Sketcher_SwitchVirtualSpace.png/48px-Sketcher_SwitchVirtualSpace.png 1.5x, /wiki/images/e/ea/Sketcher_SwitchVirtualSpace.png 2x" /></a> <a href="https://www.freecadweb.org/wiki/index.php?title=Sketcher_SwitchVirtualSpace&action=edit&redlink=1" class="new" title="Sketcher SwitchVirtualSpace (page does not exist)">Switch Virtual Space</a>: v 0.17 Allows you to "hide" constraints and make them visible again. See <a rel="nofollow" class="external free" href="https://forum.freecadweb.org/viewtopic.php?f=9&t=26614">https://forum.freecadweb.org/viewtopic.php?f=9&t=26614</a></li></ul>
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<h4><span class="mw-headline" id="Preferences">Preferences</span></h4>
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<ul><li> <a href="https://www.freecadweb.org/wiki/index.php?title=File:Std_DlgParameter.png" class="image"><img alt="Std DlgParameter.png" src="32px-Std_DlgParameter.png" width="32" height="32" srcset="/wiki/images/thumb/6/6d/Std_DlgParameter.png/48px-Std_DlgParameter.png 1.5x, /wiki/images/6/6d/Std_DlgParameter.png 2x" /></a> <a href="Sketcher_Preferences.html" title="Sketcher Preferences">Preferences...</a>: Preferences disposable in Sketcher Tools.</li></ul>
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<p><br />
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||
</p>
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<h3><span class="mw-headline" id="Best_Practices">Best Practices</span></h3>
|
||
<p>Every CAD user develops his own way of working over time, but there are some useful general principles to follow.
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</p>
|
||
<ul><li> A series of simple sketches is easier to manage than a single complex one. For example, a first sketch can be created for the base 3D feature (either a pad or a revolve), while a second one can contain holes or cutouts (pockets). Some details can be left out, to be realized later on as 3D features. You can choose to avoid fillets in your sketch if there are too many, and add them as a 3D feature.</li>
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||
<li> Always create a closed profile, or your sketch won't produce a solid, but rather a set of open faces. If you don't want some of the objects to be included in the solid creation, turn them to construction elements with the Construction Mode tool.</li>
|
||
<li> Use the auto constraints feature to limit the number of constraints you'll have to add manually.</li>
|
||
<li> As a general rule, apply geometric constraints first, then dimensional constraints, and lock your sketch last. But remember: rules are made to be broken. If you're having trouble manipulating your sketch, it may be useful to constrain a few objects first before completing your profile.</li>
|
||
<li> If possible, center your sketch to the origin (0,0) with the lock constraint. If your sketch is not symmetric, locate one of its points to the origin, or choose nice round numbers for the lock distances. In v0.12, external constraints (constraining the sketch to existing 3D geometry like edges or to other sketches) are not implemented. This means that to locate following sketches geometry to your first sketch, you'll need to set distances relative to your first sketch manually. A lock constraint of (25,75) from the origin is more easily remembered than (23.47,73.02).</li>
|
||
<li> If you have the possibility to choose between the Length constraint and the Horizontal or Vertical Distance constraints, prefer the latter. Horizontal and Vertical Distance constraints are computationally cheaper.</li>
|
||
<li> In general, the best constraints to use are: Horizontal and Vertical Constraints; Horizontal and Vertical Length Constraints; Point-to-Point Tangency. If possible, limit the use of these: the general Length Constraint; Edge-to-Edge Tangency; Fix Point Onto a Line Constraint; Symmetry Constraint.</li></ul>
|
||
<p><br />
|
||
</p>
|
||
<h3><span class="mw-headline" id="Tutorials">Tutorials</span></h3>
|
||
<ul><li> <a href="Sketcher_Tutorial.html" title="Sketcher Tutorial">Sketcher Tutorial</a></li>
|
||
<li> <a href="Sketcher_tutorial.html" title="Sketcher tutorial">Sketcher tutorial</a> for beginner</li>
|
||
<li> <a href="Sketcher_Micro_Tutorial_-_Constraint_Practices.html" title="Sketcher Micro Tutorial - Constraint Practices">Sketcher Micro Tutorial - Constraint Practices</a></li></ul>
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||
</div>
|
||
|
||
|
||
|
||
</div>
|
||
|
||
</div><div class="printfooter">
|
||
Online version: "<a dir="ltr" href="https://www.freecadweb.org/wiki/index.php?title=Sketcher_Workbench&oldid=166840">http://www.freecadweb.org/wiki/index.php?title=Sketcher_Workbench&oldid=166840</a>"</div>
|
||
<div id="catlinks" class="catlinks" data-mw="interface"></div><div class="visualClear"></div>
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</div>
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</div>
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<div id="mw-navigation">
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<h2>Navigation menu</h2>
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