What do you think is the smallest workable size for printed gears? I am starting work on a design and due to various constraints, it would require a pinion with 8 teeth and a module of 1.2, giving the gear a pitch diameter of 9.6mm. I know I can accurately print it that small, but would it be too fragile or have other problems? I read something which suggested 9 teeth was about the limit (at a 25 degree pressure angle)
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Thanks, that's good to know! I did some test prints today (with a lot of switching between the CAD program and the slicer, just as you say), and the results look OK, but I have yet to try them in a train. I'll try modifying them the deepen the dedendums if they don't work well.