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Vcore4 500 stock hardware - Hotend keeps jamming on long prints
Just like the title says, my hotend keeps jamming during long prints.
The timing isnt consistent, and I have tried lots of things, including tuning retraction.
I am using Orca Slicer. It is a 0.4mm nozzle, not the default 0.6 that came on my hotend.
I have tried different filaments, different brands different materials(all different kinds of PLA).
I then used the same filaments on other printers without issue.
My vcore3 is being workes on right now, but it wasn't having any of these issues, despite very very similar hotend/extruder wise.
There are a few reasons I have been looking at retraction:
1. the "jam"(if you can call it that), is very simple to remove as long as I catch it early, and the extruder doesn't grind through the filament.
The tip when I pull it out only looks very very slightly bulged, like how you'd expect. It comes out with only a little resistance.
2. The nozzle is clean, and been cleaned several times. The nozzle itself doesn't ever clog.
3. When the print "fails" its a clean fail, in that there is no spaghetti, or any artifacts to indicate where it failed. It looks like it finished a line, retracted, but couldn't unretract(or didn't unretract).
4. Fixing it, is just a matter of pulling the filament, snipping it, then loading it back in. Next print works fine until it doesn't.
I have installed an orbiter filament sensor on top of the extruder, and just today for good measure(I'm tired of wasting filament), I installed a spare btt smart filament sensor v1 into the filament path(closer to the spool side), to hopefully catch if the filament stops moving....but its only accurate to 7mm, which isn't amazing.
Anyway, glad to share whatever info or pictures or tests you guys want. Im at a loss here.
The timing isnt consistent, and I have tried lots of things, including tuning retraction.
I am using Orca Slicer. It is a 0.4mm nozzle, not the default 0.6 that came on my hotend.
I have tried different filaments, different brands different materials(all different kinds of PLA).
I then used the same filaments on other printers without issue.
My vcore3 is being workes on right now, but it wasn't having any of these issues, despite very very similar hotend/extruder wise.
There are a few reasons I have been looking at retraction:
1. the "jam"(if you can call it that), is very simple to remove as long as I catch it early, and the extruder doesn't grind through the filament.
The tip when I pull it out only looks very very slightly bulged, like how you'd expect. It comes out with only a little resistance.
2. The nozzle is clean, and been cleaned several times. The nozzle itself doesn't ever clog.
3. When the print "fails" its a clean fail, in that there is no spaghetti, or any artifacts to indicate where it failed. It looks like it finished a line, retracted, but couldn't unretract(or didn't unretract).
4. Fixing it, is just a matter of pulling the filament, snipping it, then loading it back in. Next print works fine until it doesn't.
I have installed an orbiter filament sensor on top of the extruder, and just today for good measure(I'm tired of wasting filament), I installed a spare btt smart filament sensor v1 into the filament path(closer to the spool side), to hopefully catch if the filament stops moving....but its only accurate to 7mm, which isn't amazing.
Anyway, glad to share whatever info or pictures or tests you guys want. Im at a loss here.
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