Hello!
For the last 2 months, my extruder module (normal; not dual) keeps hitting the print within the first 10 minutes. We’ve tried multiple adhesion types and different prints.
I’ve unmounted and remounted the module, swapped out nozzles, releveled the bed (headted & unheated; also 3, 4 & 5 grid) to no avail. Is anyone else having this issue? I didn’t have this issue in early January before I took a break and started back up in March. I do have the March 9th 2023 firmware installed.
Try using the “z-hop” setting in your slicing software.
We use Luban. Should I increase the Z-Hop?
That’s what I would start with.
No luck. It still hits the print even after doubling the retraction to 10.
Retraction has nothing to do with z hopping
Z hopping is also not the solution, it’s a workaround.
Take a close look at your print. Are the edges bent to top? Cause of overextension…
@MakariAeron Retraction is not the same as z-hop. You need to put your retraction back IMMEDIATELY; a retraction of more than 3mm will cause you hotend to clog, and can ruin your whole print head module.
If the print is not warping/curling, then z-hop is the solution. But like @TylonHh said, if the print is warping, z-hop won’t help. Warping is most often caused by overheating, either from the print temp being too high, or insufficient part cooling.
https://www.simplify3d.com/resources/print-quality-troubleshooting/curling-or-rough-corners/
Ah…no I’m not even getting thar far.
Let me be a bit more clear. It’s not getting past the first layer. After it prints the first layer, the tip rams into the plastic and then drags the print all around the bed while it spaghettis. I’ve tried 3 hot ends, reset the Luban software, and releveled the bed several times. I’d have attached pictures but there’s no print to show just a glob of black.
I wouldnt say retraction has nothing to do with z-hop. It’s not called “z-hop when retracted” for no reason…
@MakariAeron: What about your combing settings. Did you check those?
For me is still no connection between those movements.
You can do a Z hop, you can do a retract and you can perform both.
I guess we both mean the same 
For me that sounds a bit more like problems with first layer not sticking to the bed. That is maybe caused by a to high Z-offset. If you could provide close up fotos of the first few lines or a video of the first layer how its printed…
I agree with @digitalfreak . It sounds as if the problem may be that your Z-offset is too high. If it’s too high, it doesn’t press the material onto the bed sufficiently. This, on the one hand, can mean that the material doesn’t stick well to the bed. On the other hand, it can also mean that the first layer is just a tiny bit higher than it’s supposed to be. The combination of both then often means that the print head drags the already printed material along when it comes close to it. I ran into that problem plenty of times.
I trust you checked that the surface is clean and isn’t warped. (If it’s been a while, who knows what happened while you were gone. )
It’s your z-offset… if your first layer doesn’t look perfect just stop the print and adjust it. It’s the key piece of any printing. Also, trying slowing things down (30mm/s) until you get it figured out.
Hello,
I used to have those issues but as of today I am not. it has been a while since having those issues after removing the auto distance sensor. (It collided with a print and broke)
I don’t remember the last calibration I have done either because it prints and has no issues. I also have NOT removed the 3D module in quite some time, but every on and off still produces the same quality and expectations.
-David