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Hey y'all, I managed to hack together a printer from scratch and I'm struggling to get it to print well. It's a CoreXY system that's being controlled by a Octopus 1.1. Dual z screws, the works.

I have it moving under it's own power and all. It's able to actually print, but the results are atrocious.

I'm just trying to diagnose what's wrong here.

The bottom/first layer actually looks kinda good. It's just completely shredding subsequent layers.

Any advice would be appreciated!

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[-] franzfurdinand@lemmy.world 1 points 10 months ago

Yep! It actually extrudes just fine. I'm starting to wonder if maybe my z axis e-steps are just slightly off and it's enough to compound over the course of the print. It seems to hit a certain spot and start grinding itself into the print, which suggests that it might not be moving up enough per layer.

[-] IMALlama@lemmy.world 1 points 10 months ago

It looks like you're under-extruding and/or clogging. If you can get filament through your nozzle in air, but not while printing, I wonder if you have enough tension on your filament? Extruder emperature variation as you move around might be another possibility. Not moving correctly in z would cause your parts to mushroom and is easy enough to check by homing, moving the nozzle to say z10, and then measuring the gap.

Good luck!

this post was submitted on 19 Jan 2024
17 points (100.0% liked)

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