As requested on support…
Given the need to cut out a design for aerating a lawn:
one would draw up the basic design by first setting up the file:
Then use the polyline tool to draw up a pair of opposing points:
Then use the Circular Array tool to make as many duplicates as desired:
“Select Center in Window”
click where the center should be:
If need be, adjust the various parameters, OK.
Use Boolean Union:
to join things together:
If the design is cut out with a suitable V endmill:
Add a suitable opening through the center to allow for an opening.
One option would be to cut them in pairs of material half as thick as desired and to then alternate their orientation.