FreeCAD-Doc/localwiki/PartDesign_SubtractiveTorus.html
2018-07-08 12:11:49 -05:00

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<html><head><title>PartDesign SubtractiveTorus</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><link type='text/css' href='wiki.css' rel='stylesheet'></head><body><h1>PartDesign SubtractiveTorus</h1></div>
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<h3><span class="mw-headline" id="PartDesign_SubtractiveTorus"><a href="https://www.freecadweb.org/wiki/index.php?title=File:PartDesign_SubtractiveTorus.png" class="image"><img alt="PartDesign SubtractiveTorus.png" src="PartDesign_SubtractiveTorus.png" width="32" height="28" /></a> PartDesign SubtractiveTorus</span></h3>
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<th class="ctOdd">Menu location
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<td class="ctEven">Part Design → Create a subtractive primitive → Subtractive Torus
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<th class="ctOdd">Workbenches
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<td class="ctEven"><a href="PartDesign_Workbench.html" title="PartDesign Workbench">PartDesign</a>
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<th class="ctOdd">Default shortcut
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<td class="ctEven">None
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<th class="ctOdd">See also
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<td class="ctEven"><a href="PartDesign_CompPrimitiveSubtractive.html" title="PartDesign CompPrimitiveSubtractive">PartDesign CompPrimitiveSubtractive</a>
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<td class="ctToc"><br /><div id="toc" class="toc"><div class="toctitle"><h2>Contents</h2></div>
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<li class="toclevel-1"><a href="#PartDesign_SubtractiveTorus"><span class="tocnumber">1</span> <span class="toctext">PartDesign SubtractiveTorus</span></a></li>
<li class="toclevel-1 tocsection-1"><a href="#Description"><span class="tocnumber">2</span> <span class="toctext">Description</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="#How_to_use"><span class="tocnumber">3</span> <span class="toctext">How to use</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="#Options"><span class="tocnumber">4</span> <span class="toctext">Options</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="#Properties"><span class="tocnumber">5</span> <span class="toctext">Properties</span></a></li>
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<h2><span class="mw-headline" id="Description">Description</span></h2>
<p>Inserts a subtractive torus in the active Body. Its shape is subtracted from the existing solid.
</p><p><span style="font-size:x-small;"><a href="Release_notes_0.17.html" title="Release notes 0.17">available in version 0.17</a></span>
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<div class="floatnone"><a href="https://www.freecadweb.org/wiki/index.php?title=File:PartDesign_SubtractiveTorus_example.svg" class="image"><img alt="PartDesign SubtractiveTorus example.svg" src="PartDesign_SubtractiveTorus_example.svg" width="600" height="300" /></a></div>
<p><i>On the left: active body (A) shown in grey and subtractive torus (B) shown in transparent red; result on the right.</i>
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<h2><span class="mw-headline" id="How_to_use">How to use</span></h2>
<ol><li> Press the <span style="background: #DDDDDD; border: 1px solid #888888; padding: 0px 5px 1px 5px;"><a href="https://www.freecadweb.org/wiki/index.php?title=File:PartDesign_SubtractiveTorus.png" class="image"><img alt="PartDesign SubtractiveTorus.png" src="24px-PartDesign_SubtractiveTorus.png" width="24" height="21" srcset="PartDesign_SubtractiveTorus.png 1.5x" /></a> <b>Subtractive Torus</b></span> button. <b>Note</b>: the Subtractive Torus is part of an icon menu labelled <i>Create an additive primitive</i>. After launching FreeCAD, the Subtractive Box is the one displayed in the toolbar. To get the Torus, click on the down arrow besides the visible icon and select Subtractive Torus in the menu.</li>
<li> Set the Primitive parameters and <a href="Part_Attachment.html" title="Part Attachment">Attachment</a>.</li>
<li> Click <span style="background: #DDDDDD; border: 1px solid #888888; padding: 0px 5px 1px 5px;">OK</span>.</li>
<li> A Torus feature appears under the active Body.</li></ol>
<h2><span class="mw-headline" id="Options">Options</span></h2>
<p>The Torus can be edited after its creation in two ways:
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<ul><li> Double-clicking it in the Model tree, or by right-clicking and selecting <b>Edit primitive</b> in the contextual menu; this brings up the Primitive parameters.</li>
<li> Via the <a href="Property_editor.html" title="Property editor">Property editor</a>.</li></ul>
<h2><span class="mw-headline" id="Properties">Properties</span></h2>
<ul><li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>Attachment</b>: defines the attachment mode as well as the Attachment Offset. See <a href="Part_Attachment.html" title="Part Attachment">Part Attachment</a>.</li>
<li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>Label</b>: Label given to the Torus object. Change to suit your needs.</li>
<li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>Radius1</b>: Radius of the imaginary orbit around which the circular cross-section revolves. (The distance between the center of the torus and the center of the revolving cross section)</li>
<li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>Radius2</b>: Radius of the circular cross-section defining the form of the torus.</li>
<li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>Angle1</b>: (labelled <i>V parameter</i> in the Primitive parameters) lower truncation of the torus, parallel to the circular cross section (-180° in a full torus). A bug in the sources causes unexpected results at changing Angle1. </li>
<li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>Angle2</b>: (unlabelled in the Primitive parameters) upper truncation of the ellipsoid, parallel to the circular cross section (180° in a full torus). A bug in the sources causes unexpected results at changing Angle2.</li>
<li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>Angle3</b>: (labelled <i>U parameter</i> in the Primitive parameters) angle of rotation of the circular cross section (360° in a full torus).</li></ul>
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