Hey folks, does anyone have advice on printing dimensionally correct parts? I'm trying to make a mobile phone mount for my car that's in 3 parts: One that goes on the phone, one that goes on a car windscreen bracket, and one that I can use as a belt clip.
My issue at the moment is that I'm trying to print holes for 10mm by 3mm magnets to hold the phone in place when it's either on the belt or in the car, and they're coming out the wrong size. Initially they seem OK, and are a reasonably snug press-fit which is what I was going for, but over 24-48 hours the parts seem to shrink further, and crack themselves open on the magnets. The part itself (once the interesting bits are excluded) is basically just a 60mm by 22mm by 5mm thick slab of acrylic.
Resin is the Monocure Black, I'm using 5x80s bottom layers, then 13 second mid-layers at 50 um.
I've seen a couple of references to shrinkage at ~3%. Should I just be scaling all my parts at 103% in the slicer to account for that? Would that actually work?
It's kind of important as I've done a full design for a magnetically coupled impeller pump I want to print off to stir my wash-vats, but that design uses bearings so I need those prints to come out bang-on the right size.
翻譯年糕
Dustin Scott
2019-01-14 06:08:07
Robert Silvers
2019-01-14 06:53:55
Robert Silvers
2019-01-14 07:36:20
Robert Silvers
2019-01-14 07:36:52
David McGyver
2019-01-15 09:54:46
