There are three ways to do this:
To trim an arc out of a circle, there are a couple of options:
Draw a circle:
Go into Node Edit mode:
right-click and use the "Cut Vector command where desired:
Done
delete what isn’t needed:
Assign a suitable toolpath:
which previews as:
Alternately, the Trim Vectors command may be used — in addition to the circle, draw geometry which defines where you wish the cut to be made:
Note that it will be necessary to increase the size/offset by the radius of the tool which will be used to make this cut:
Select the offset geometry and the circle:
and use the Trim Vectors command:
to delete what is not needed:
and apply a toolpath as before:
which previews as:
Doing this using Boolean operations is similar, but one needs two circles, one to describe the shape which will be left, the other which is offset by tool diameter plus ~10%:
Select the offset geometry which defines the region to be cut and shift-click to add the inner circle to the selection as the key object:
and use the Boolean Subtraction tool to remove the area encompassed by the circle from the offset geometry:
OK
Add the remaining circle to the selection and use Boolean Intersection:
OK
Using the Trim Vectors command is similar:
Simply delete what isn’t wanted:
OK
and use the Join Vectors command to get a closed figure:
and then assign a Pocket toolpath:
as requested on support…
If you need to
take this 8" circle and make it into equal segments.
Then draw a line which divides half the circle:
Then use a Circular Array to create as many duplicates as are needed:
OK
Select everything:
and use Trim Vectors:
to cut out at least one section:
but up to three may be sectioned off:
arriving at:
OK
OK
Use Join Vectors to close things:
Yes
The sections may then be duplicated:
Rotated
Done
Then dragged into registration:
