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Has anyone tried printing this with an FDM printer?
by e44858 2y ago
Has anyone tried printing this with an FDM printer?
- rsfern 2y agoIt’s not that kind of 3D printing, it’s laser powder bed fusion [0]. I don’t know a lot about FDM but I’d be kind of surprised if you could do Ti-64 and get the same mechanical strength (but I’d be interested to know if I’m off base) because I think it’s like metal embedded in polymer that you have to sinter post-build? Compared to basically doing a continuous laser weld with the powder bed method However, here [1] is a cool paper looking at optimizing similar meta material structures using polymer filament printing - if you could do something similar in metal FDM that might be interesting? 0: https://en.m.wikipedia.org/wiki/Selective_laser_melting https://en.m.wikipedia.org/wiki/Selective_laser_melting 1: https://doi.org/10.1126/sciadv.aaz1708 https://doi.org/10.1126/sciadv.aaz1708
- Turing_Machine 2y agoI'm not sure what difference that would make? I mean, obviously metal is going to be stronger than fused plastic, but I gather here that what makes it stronger than normal is the structure. Wouldn't FDM plastic objects made with this structure be stronger than FDM objects made with a more conventional structure? That would be very useful even if it's not as strong as metal. I think I'm going to print up some test pieces and do destructive testing.
- rsfern 2y agoSorry - I didn’t mean to come off as discouraging, that’s part of why I linked the BEAR paper! I agree in relative terms, I’d think this cellular structure should have better compressive strength than a different structure made of the same material I guess where I’m coming from is that FDM titanium (if you can realistically print that, I don’t know) isn’t going to have the same properties as SLM titanium, so the headline strength (in absolute terms) is probably not achievable in FDM Ti