A worthy competitor to polycarbonate without the downsides:

3D Printing
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A worthy competitor to polycarbonate without the downsides: This is the impressive performance of Taulman’s Alloy 910 filament!
https://www.youtube.com/watch?v=m9hXgDnzQiI

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Jup 910 is awesome. Used at work cause its sooo tough and slips really good. Also a bit flexible and wont brake. Only thing is you either need a phenlic bed (like pertiprint) or adjusting the bedtemp really good and use gluestick or such. If printed 100% infill things get undestroyable…