WillAdams
November 29, 2020, 2:52am
15
For distortions while cutting such issues are usually mechanical, possibly exacerbated by toolpath issues.
Check the machine mechanically:
https://wiki.shapeoko.com/index.php/FAQ#Mechanical
calibrate for belt stretch:
https://docs.carbide3d.com/shapeoko-faq/how-to-calibrate-the-machine-for-belt-stretch/
and don’t cut slots only as wide as the endmill which results in the greatest possible tooling engagement — add geometry and cut as a pocket down to at least tab depth:
One technique which is often suggested to avoid slotting is to add geometry around a part which one wishes to cut out and cut as a pocket down to tab depth — here’s one technique for that.
In this case, the project is a bevel gauge which will be cut out of 0.0625" (~1.5mm) thick aluminum:
[bevelgauge]
Due to the narrowness of the angles, an 0.03125" endmill has to be used, so after importing and scaling the file (we will be cutting out one which is 3") we select the perimeter and offset it tw…