On our 2015 robot,
the big yellow gear is an FDMed ABS plastic part with a tapped hole used for a set screw.
Here's another. These parts were modeled with holes sized for 75% thread, printed with 2-3 shell layers and 20-30% infill, and carefully tapped. Worked fine for this extremely low-load application.
Quote:
Originally Posted by pilleya
I think it is important to make the distinction between an "engineering plastic" and a material like PLA or ABS.
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This resource is great for understanding the distinction between types and grades of plastics. Hangs in my office.