this post was submitted on 16 Jun 2024
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[Solved] Help wanted (lemmy.world)
submitted 5 months ago* (last edited 5 months ago) by bushvin@lemmy.world to c/3dprinting@lemmy.world
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Update: TL;DR: I cleaned the z-axis, replaced the nofep, installed the latest Chitubox (2.1) and cleaned up my profile to get it working

Hello, I hope someone will see this and be able to at least point me in the tight direction. As at this point I’m becoming desperate.

My Epax E10 4k is acting up, and I do not know why.

Part of the print is fine (see images) and then other parts are just stopped at a certain layer, with the rest stuck to the noFep.

I tried different prints, to make sure it wasn’t a layering problem, but alas… each single print suffered from the issue. The larger prints would ‘hang’ over non-printed layers…

I recalibrated my printer, changed the fep…

The one difference from before is the resin. I used to buy epax hard and tough, but my regular resin dealer doesn’t sell them anymore, heck it seems it is no longer available in europe. So I switched to the next best thing on the Epax compatibility list: eSun hard and tough.

Anybody have any clever idea?

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[–] fluxion@lemmy.world 3 points 5 months ago (1 children)

Sick ice palace print

[–] bushvin@lemmy.world 2 points 5 months ago

The glass is half full, yeah? 😉

[–] tristan@aussie.zone 3 points 5 months ago (1 children)

It's been a while since I used my resin printer, but I had a similar problem at one point and it came down to the support connection to the print... No matter how many supports I put, it didn't change the outcome, but when I made the support thicker and made the connection point thicker, suddenly I had no more problems... It just meant a little extra post processing on some parts

[–] bushvin@lemmy.world 1 points 5 months ago (1 children)

Thanks for taking the time to reply.

I eventually ended up removing my slicer (Chitubox basic) and install the latest and greatest after cleaning up my profile. So literally starting anew.

Aside from changing te resin, I didn’t modify any other settings to begin with, so my config was rather vanilla.

After taking these steps (and cleaning the z-axis and replacing the nofep again) everything seems to be working fine now.

Cleaning the axis and a new nofep didn’t seem to do anything, so I think it was just a crappy version of the slicer.

[–] tristan@aussie.zone 3 points 4 months ago

Glad you got it sorted

[–] Dups@sh.itjust.works 2 points 4 months ago

Ive had this problem before. When I changed the slice to include a longer layer exposure and thicker supports that fixed the problem for me.

[–] remotelove@lemmy.ca 2 points 5 months ago* (last edited 5 months ago) (1 children)

I don't resin print, but it looks like there is a missing layer or two. The ripples in the interface layers at the bed were confusing me at first, but that seems like it they were formed in the resin not being attached to anything. The rest of the print is failing at the same layers of those strange ripples.

My guess would be a mechanical issue with the main Z screw, like there is something in that part of the thread that is causing it to lift a bit higher than it should. If it was completely loose, the rest of the print wouldn't be viable.

Clean the threads of the screw and try to replicate that error at those layers with a test print. Isolate the problem, is my advice.

This part is really funky:

[–] bushvin@lemmy.world 2 points 5 months ago (1 children)

Thank you for your reply! I hadn’t thought of the mechanics!

I’ll check the screw and clean it.

[–] remotelove@lemmy.ca 1 points 5 months ago

Just isolate the problem, is the rule of thumb. If you can replicate the issue reliably, it's fixable. At worst, it limits the number of variables you are working with, which is still awesome in its own way.

My only other thought would be a bizarre stepper motor skip, which would lead me to start checking wiring and such.

[–] Boinkage@lemmy.world 0 points 5 months ago* (last edited 5 months ago) (1 children)

Have you looked up settings for this new resin? Or run calibration test prints with it? If you're using the settings for the old resin with a different kind of resin it won't be right. It looks like your exposure time is too low, the resin isn't being cured enough at each layer so it's not adhering. Bump up the exposure time a lot and see if anything comes out. Also bump support thickness and connection thickness up. You can see the supports not even making full connection with that spear in the photo.

[–] bushvin@lemmy.world 0 points 5 months ago (1 children)

I did select different settings for the other resin. I checked both in the app and on Epax’s website, and my settings are aligned

[–] biscuitswalrus@aussie.zone 0 points 5 months ago (1 children)

Post your cones of calibration front and back. They reveal if you're exposure is at least something to rule out.

[–] bushvin@lemmy.world 0 points 5 months ago (1 children)

Thanks for taking the time to reply.

I eventually ended up removing my slicer (Chitubox basic) and install the latest and greatest after cleaning up my profile. So literally starting anew.

Aside from changing te resin, I didn’t modify any other settings to begin with, so my config was rather vanilla.

After taking these steps (and cleaning the z-axis and replacing the nofep again) everything seems to be working fine now.

Cleaning the axis and a new nofep didn’t seem to do anything, so I think it was just a crappy version of the slicer.

[–] biscuitswalrus@aussie.zone 2 points 4 months ago (1 children)

Glad you got it working, interesting if the slicer itself was the problem.. When you're loading a file to the printer on my elegoo I'll be able to check the actual layer settings which is ultimately the key since that's how long the lcd will light up and cure the resin.

However supports and rafts are heavily influenced by the slicer so any issues there could be resolved by the slicer software.

Otherwise your hygiene cleaning all sounds like good practice regardless both to remove variables and maintenance.

Glad you got it sorted

[–] bushvin@lemmy.world 2 points 4 months ago

I was kind of getting really desperate, as I usually, IMO, take good care of the machine. And usually I know hoe to solve issues. But in hindsight, and after checking timestamps, I do believe it is the slicer. When I updated it earlier this year I printed some figs, but couldn’t troubleshoot during to time constraints, and I parked it. So recently I picked up printing some more, but it didn’t connect immediately.

So yeah, I blame the slicer, and my lack of time.