For one of the projects I have 3D printed stepper-driven tank platform. However there is one cog missing because the original one doesn't fit to my motor shaft.
Unfortunately on this moment I do not have an access to 3D printer and was have to find a way around to make this cog. I decided to try oven bake modelling clay with procelain finish.
I made a print of original cog and motor shaft on the peace of clay and cut it with x-acto knife. Then I baked it for a 15 minutes with ~115*C. It's really strong, you cannot break it with hands. However you have to be very careful and do not overheat it:
It looks and works pretty well. No complains so far.
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