note to self... do not attempt to make small fasteners out of PLA... this was an attempted push-fit hinge pin but it just broke as I was attempting to put it together. Enough interference to ensure a snug fit means you have to apply enough pressure to make the fit to break it.
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smaller pin diameter on the stepped shaft is 4.5mm... I don't think this will work for anything smaller than say 20mm
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This is just a model and in the real build I'll obviously be using a metal shaft or something, but I was trying to do a quick and dirty test assembly and didn't have a suitable metal pin thing handy
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