Quote:
Originally Posted by DonP
Huh, learn something new every day. Well, thankfully this is just for a test-of-concept so no long-term durability requirement here. :P
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I find myself being careful with my use of brass. It's decently strong and very easy to machine accurately. Unfortunately it's utter shite for long term sliding durability. It starts out nice and slippy (low friction) but at some point it's free machining charactaristics allow it to lose particles which make this terrible brass sanding dust which abrades more of the solid. Brass bushings rapidly turn oval as shafts start to slot them out.
I've gotten MUCH better wear from bronze or engineering plastics like acetal (POM) or nylon. Still, the stiffness and machinibility of brass makes for good short term prototyping mat'l.