Comment on Great success. Apple for scale
Ahardyfellow@lemmynsfw.com 1 week ago
With big prints like this that require tolerances I tend to make a dedicated model for just the feature with the tolerance and hone it in on that. Since just printing the bit I need to test is way faster than reprinting the whole thing a bunch of times. It takes a bit more planning but is totally worth it in saved plastic and time!
If I’m in a time crunch for the piece then sandpaper works well enough if the tolerance was too tight, and some wraps of electrical tape if it’s too loose
The print looks great tho!
IMALlama@lemmy.world 1 week ago
I agree. In fact, that’s what I tend to do - slice up a design by splitting the body/bodies and printing test pieces where tolerances matter. Things like latches, hinges, pieces that have to fit with one another, etc. I’m not sure how practical this approach would have been for this print due to its final orientation, but it’s a really good practice.
I think I got a bit too comfortable with things going per plan over my last batch of designs :( I’ll also admit to being in a bit of a time crunch. No deadline, but I have younger kids so time to model and print is somewhat limited. This is a good reminder that rushing can actually make things take longer in the end.
Massaging this print to fit wasn’t practical. Despite being off by 1% that’s still 2mm of material to remove over some pretty big spans. I did take a chisel to the cutout, but man is ASA tough. PETG is much easier to do that with lol.
Thanks re: print looks great. It’s super solid, so I’m very happy in that regard. I don’t know about you, but lighting greatly impacts how the surface quality of my prints look. Hard/direct light at a steep vertical angle makes the faces look pretty rough, but more diffuse light coming from the side makes the parts look great. I am not sure if this is normal, especially for a larger CoreXY with long 6mm wide a/b belts, or if this is something I can dig into and improve.
fhein@lemmy.world 1 week ago
It’s normal, but I think it’s more visible the thicker your layers are. I’ve also seen a respected 3d printing content creator use this effect to make his sponsored brand (Creality) look like it has higher print quality than the competitor… If you’re printing with ASA, perhaps you could use some light acetone smoothing if you want a more even surface?
IMALlama@lemmy.world 1 week ago
This is disappointing. Not because it’s normal, but because so many photos of prints you see on the web extolling print quality are in ideal lighting. It’s misleading at best. I will say surface quality is oodles ahead of my old I3 clone, but this has always miffed me.
I do tend to print in chunkier layers. Also thicker extrusions and nozzles…
It doesn’t really bother me as my prints are functional, but there’s always been this nagging thing in the back of my head regarding surface quality relative to what folks on the internet present they achieve. The photo in this post is guilty of this TBH. The print looks way worse on the bed thanks to a taller printer with top mounted lights resulting in a steep lighting angle relative to vertical surfaces. It’s like going on a picturesque trip only to find out that all the photos you’ve seen online take a lot of liberty with timing (ie super early/late in the day) and/or framing.