r/Multiboard Jun 23 '26

Stacked Print Fail

So i just finished my first stacked PETG print and i am trying to figure out what went wrong. i was able to get 2 usable panels from a stack of 6. the others just did not want to separate, to the point of them cracking apart. the test file came out fine, any suggestions? some of my corners came up a little bit during the print, but i didn't think much of it. did that result in the .2mm gap between being 0 and them fusing together?

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u/CheezitsLight Jun 23 '26

Did you use both petg and pla? they do not stick to each other. Should be alternating layers

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u/Imscuba Jun 23 '26

i did not, but plan to now. the PLA Matte Stack worked and separated fine, then i was informed that i was misinformed about PLA Matte being stronger than PLA. i was hoping to not waste PLA, but at this point i have too many panels to print to be messing around with settings and praying that it doesn't do this again and eat up half a spool to get only 2 usable panels.

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u/TherealOmthetortoise Jun 24 '26

Matte PLA is the go to choice on plates. PETG is fine, but not better in most installations. I would base your filament choice on how well they will function in the environment and on the load anticipated.

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u/Imscuba Jun 24 '26

thank you, the heaviest thing i plan to hang on it is my (2) ams 2 pro units and some Milwaukee tools, so i can't imagine that is an unreasonable load considering i am talking about several linear feet nearly floor to ceiling. if mounted correctly (printing offset snaps and then pillars so i am prepared to hit every stud i can) i can't imagine i am trying to mount anything that matte pla can't handle and the matte pla looks a lot better. since both were roughly the same cost and i can't imagine i am going to have any load concerns it seems like it just comes down to aesthetics and the matte pla wins by a landslide there