Mr. Hye
RRCRat Rig Community [Unofficial]
•Created by Mr. Hye on 8/31/2024 in #fix-my-printer
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.
54 replies
RRCRat Rig Community [Unofficial]
•Created by Mr. Hye on 6/6/2024 in #fix-my-resonance
Vcore 4 only has one large peak...Is this ok?
2 replies
RRCRat Rig Community [Unofficial]
•Created by Mr. Hye on 4/28/2024 in #fix-my-print
Rough artifacts on surface
61 replies
RRCRat Rig Community [Unofficial]
•Created by Mr. Hye on 4/20/2024 in #fix-my-printer
Y motor seems to be losing torque on X moves
My Y axis just started slipping when my x moves. I think the motor is losing torque or something is slipping. When the X moves the Y also moves a bit.
Not sure where to start? Bad motor? Bad driver? I do have some spare drivers, that I Guess I can test. Could it be that?
This printer has been working really well for a long time, and this just started during my last print.
Now when I try and Ztilt it wont finish the last spot, because it will be driven off the bed.
Thanks for any help
45 replies
RRCRat Rig Community [Unofficial]
•Created by Mr. Hye on 10/31/2023 in #fix-my-printer
Bowden tube friction
Is there some trick to getting my UHF to be able to UHF? I can't seem to print over about 12mm/s flow rate. After lots of testing, its because of friction in the bowden tube.
I have tried using large 3mm ID tube, and using the capricorn tube, all sorts of stuff.
Is there some trick to routing it in a way to make it smooth? Do I need to hang my filimanet on the ceiling and remove the top enclosure panel and let it feed straight down?
If I remove the PTFE and feed filament straight into the extruder, it feeds super fast. Its all related to having to pull through the tube.
And if I print over 12mm/s feed, I get cracks in the walls...But, thats dumb, whats the point of UHF if I can't feed fast enough?
3 replies
RRCRat Rig Community [Unofficial]
•Created by Mr. Hye on 7/6/2023 in #fix-my-print
Cracks/under extrusion in layers
7 replies