3D Machine Settings
In designing 3D parts you may use one of several processes from the Line | Machine dialog:
Near / Far edge - Each line has a near and far edge. The Near edge is the edge nearest
you in the current view and the Far
edge is the edge farthest from you. For example, for a
blind hole the far edge is at the bottom of the hole while the near edge is at
the surface opening of the hole. Choose Straight ,
Round or Chamfer per the desired shape of the
edge and enter the
relevant numeric value. Use Chamfer for countersinking holes and Straight for counterboring holes. You may need to change to an opposing view first. For example, if you have a thru hole in the Top view and want to countersink the far edge, select View | Bottom and from the bottom view chamfer the near edge.
Side wall - The side wall angle is the angle of the wall corresponding
to a specific line. A simple straight wall is considered to be 90 degrees. For
example, a hole normally has a cylindrical wall at 90 degrees to the surface,
but you could specify a sloped wall of 100 degrees. If you are designing
injection molded or cast parts, you may need to use walls of about 92 degrees to
allow your part to be easily removed from the mold.
Grooves - Grooves are recesses cut into a wall. To specify a groove
check the checkbox and then click the Parameters button. Specify the desired dimensions
and click Add for each needed groove. You can edit existing grooves by
clicking the Replace button. You can remove a groove by selecting it in
the list and clicking Remove. You can remove all grooves by unchecking Grooves in the main dialog. For non-rectangular grooves use Comments To Machinist or, for turned parts use the Revolve feature.
Tolerance - Use this drop list to select a
tolerance tighter than
the default tolerance. For example, while the default tolerance for a job might
be +/- .005" you might wish to specify a tolerance for a hole of +/- .003".
