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Even coloured PETG has been amazingly shatter resistant for me? I took a bad print and stuck it in a bench vice. It was long and skinny (maybe 3-4mm thick befor
by tonyarkles 6y ago
Even coloured PETG has been amazingly shatter resistant for me? I took a bad print and stuck it in a bench vice. It was long and skinny (maybe 3-4mm thick before the print failed), and it literally bent itself in half and did not snap.
- StavrosK 6y agoIt depends, pigment changes its properties. White Spektrum PETG tended to shatter a bit too easily for me (though still not more easily than PLA, I think).
- tonyarkles 6y agoHuh! Good to know! This was D3D in green. The only thing that's managed to break it so far is a drone clipping the ground with its landing gear at 40km/h, and the 3D printed piece was the perfect "weak link" to prevent a more catastrophic failure :)
- StavrosK 6y agoOh yes, engineering intentional weak links is an art of its own, when you don't want the more expensive components to break.
- tonyarkles 6y agoThe joke in engineering school was: "You may choose to design a specific weak link into your design; if you do not do so, one will be provided for you."