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geoff

UM3 PRINTING WITH PMMA FOR MOULDS FOR CASTING

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Up till your question, I hadn't even heard about PMMA as 3D-printing filament, even though I have used lots of two-component PMMA materials (powder + liquid) and PMMA-based light-curing materials.

So I googled it: indeed it does exist, and some people like it, but some complain it is very brittle (which is what I would expect, similar to two-component PMMA), and it shrinks too much, like ABS.

Is there a reason you need PMMA, and can not use PET, polycarbonate, some high-temp polyester, or even PLA (but only for moulds not subjected to temperatures above room temp)?

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