| Slots around a cylinder in Mastercam |
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| tip of the month text |
| Written by Derek Goodwin |
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This tutorial shows how to rotate slots around a solid model of a cylinder and then cut them through.
First create a closed shape that will act as the cutting tool.  I have created the shape in space for better illustration.
 Select solids, extrude
 chain the cutting shape
 Select, cut body, and make sure the direction of cut is towards the cylinder, click on the geometry to change direction, if the arrow faces the wrong way.
in this case I have selected extend through all, so it will cut the shape through both walls of the cylinder.   Next, we will copy the cutting shape around the perimeter of the cylinder. Select the right construction plane, so that the rotation takes place around the X axis.
 Xform rotate the cutting shape (I used minus 60 degrees around the X axis)
 Copy the shape, (do not move or delete the original shape or the solid will blow up.)
 Don't forget to reset your construction plane to top.
 Select Planes, rotate planes
 Rotate the construction plane minus 60 degrees around the X axis.
 The "new view" dialog box opens, name your view (construction plane)
 Press alt F9 on your keyboard to see the construction plane icon
 Solids, extrude
 Chain the shape at -60 degrees
 Check that the direction is toward the cylinder, in this case I have chosen a distance, so it will only cut through one wall.
 Continue to rotate the geometry and the construction plane around the cylinder to cut additional slots
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