I’m attempting a print (12 hours) and all 3 times I’ve attempted it, I’ve come back to the machine to find the print unfinished (in what seems to be the exact same same place) but the screen saying 100%. Print up to the point of failure is perfect, every time, it’s just missing the ‘top’!
Between each print I re-sliced it so I highly doubt the problem is the code.
Having followed a few rabbit holes, I found a post that said it’s probably a feed problem so the machine ‘air printed’ the last layers. So I’ve taken a look at the filament at the point the print failed and it is a little worn but it doesn’t stop the filament being able to be fed if I do a ‘load’ command from the touchscreen or restart the print.
I’m at a loss where to turn now. Any ideas? I’ve wasted 3 days and half a reel of filament now.
OK. It just failed again, exact same layer. Checked the filament again, definitely a problem with the feed, it’s ground away the filament in the drive wheel to the point it can no longer feed. I managed to pause the print and clear the problem, but it had missed too many layers to recover properly.
How do I track down what part of the print is causing this grinding away of the filament? It prints perfectly up to this point.
Top is how it should look, this was my first prototype done about a week ago. I then had to make some small adjustments to the location of some of the openings in the panel (by a few mm) this was the only change made to the 3D model from the prototype that worked.
Next two down were done with the exact same print settings as the prototype, both failed at the same layer.
4th is the last one I did, with the different infill, also failed at the exact same layer.
I’ve had feed issues two different ways (on my Original). The first was caused by the position of the spool causing it to bind when it was nearly empty, and the print head was high. The second was printing something with a lot retractions that basically chewed up the filament.
Your model doesn’t look like it has a lot of rapid retractions. It probably doesn’t need retraction at all. So I’d guess that something is causing the filament to bind.
I have my printer on my desk next to me. One of the most reliable indications of a problem with a print is “huh, that was a weird noise”.
I don’t think any of those scenarios apply. I will share a photo later, however it’s just the ‘standard’ Artisan setup, with the spools on the side of the enclosure.
Disabling retraction did take an hour off the estimate print time, so there must have been some going on. I have high hopes…
Yeah, as soon it always brokes on more or less the same layer, i dont think it is filament path or retraction related. Is it printing until the 100%? Or is it printing in the air at like 60% and moving without printing?
It’s air-printing every layer after it stops. I am fairly certain it’s a filament grinding issue now. I was just thrown off because the first failure I ran a filament load and it fed the filament perfectly fine after the failure, I think that was just luck, but every time after that the filament will not feed after the failure and I’ve had to manually clear it, and on inspection filament shows a deep gouge where the drive wheel is.
Now… that might be effect rather than cause… maybe a nozzle block caused the filament to stop feeding and ground it away, but I cannot envisage how a nozzle could get blocked routinely every print…
Will report back after this latest print finishes (or fails).
Now going to try a higher printing temp, if that doesn’t work I am going to have to guess this filament is bad and clogging the nozzle, but that’s a stretch given it printed OK a week ago.
Have you checked the nozzle temperature while it is air printing? I have had prints fail in a similar way because the nozzle temperature got reset to 0.
I’m not sure what caused the issue for me, but I was able to fix it by re-slicing the model. If you do another print, also check whether the extruder gear is spinning; if it is, the filament is getting stuck.
It is not feeding the filament. I had that issue myself and came across some tabs to print to press into the top of hot ends that seemed to fix it. The gears are just spinning and the machine thinks it is feeding so it will continue the print without actually printing.
disable retraction didn’t help.