Hi. I designed and ordered a 3d print out of natural polyamide. I received my order and am very satisfied with the result. The project is a miniature marble machine that uses small steel ball bearings (6 mm diameter).
My problem is that I didn’t design some of the down-ramps steep enough and some of the balls get stuck.
- Can I use a small file and/or fine grain sandpaper on natural polyamide to make it smoother?
- Is there a household product or chemical I can apply to the polyamide for a smoother surface? (like nail polish, wood finish, etc.)
I do not have a test piece that I can experiment on and was hoping someone with experience can give me some direction. Thank you!