I fired up the CNC machine over the weekend.
I was trying to figure out how to cut concentric circles in a piece of plywood, and decided that it would be easiest to do it “in software”.
The hardest part of the job was getting the workpiece clamped down in exactly the right spot so that the axes lined up properly. If I’d been cutting the piece out from scratch, this would not have been a problem.
Once the part was all set up, though, creating a CAD drawing of my desired part was pretty straightforward.
The cut took about 8 minutes to complete, not too shabby. I wish the machine was a little faster, and I wish that it was a little more accurate. But having a part appear before my eyes was really nice.
Here‘s a link to the blog entry about the job.