I am working on cutting 1 inch thick HDPE, but am having a couple issues. These cuts have to be precise, but I am not getting circular holes of the size that I need.
And a small part of the project won’t cut.
The black line inside the red circle will not cut. It is part of the shape to the left of the central square.
Also, these holes don’t come out the size that I specify. They are supposed to be 9.6mm diameter, but I have increased the width and height to 11mm, and they are still a bit too small.