RE: Filament Change Flaw with runout
I'll have to watch that video. I'm sure it smelled just wonderful while printing.
RE:
I'll have to watch that video. I'm sure it smelled just wonderful while printing.
Here you go: Cow Poop Filament is NOT as BAD as you Think! and he prints it on a Core One...
RE: Filament Change Flaw with runout
Like I said, easy fix is to just purge the remaining filament through the nozzle (this is the logic I use on my custom printers). The filament is garbage anyway, what difference does it make if it's a 1.75mm piece, or a pile of plastic poop. At least with the poop option, I'm not cursing the printer out.
Disabling the side sensor and purging is indeed the only viable option. I mostly print with Prusament, and each spool ends with a crooked part like the one in a photo. I encountered 3 ways the filament runout goes on Core One+:
1) The filament does not enter the PTFE going into the side sensor -> Runout not triggered, print continues midair. Easy to clean
2) The filament passes the sensor and triggers the runout, but gets stuck on the way back -> Hard to clean, requires removing the side panel or the top panel.
3) Side sensor is disabled and filament is pulled all the way to Nextruder where it breaks (PLA) at the sensor -> Runout not triggered, print continues midair.
Till I get myself a filament cutter (e.g. HAFC) preceding the side sensor, I'm for sure not going to rely on a filament runout procedure.
Prusament spool crooked endpiece spoiling the filament runout procedure.
RE: Filament Change Flaw with runout
Generally, the reason runout doesn't get triggered is that:
- the lever inside the sensor binds to the cover due to the magnet sticking too far out from the arm
- the slot that the lever hook fits into to block the optical sensor is slightly skewed
- the screw that attaches the lever pivot to the sensor housing is too tight preventing free movement.
RE: Filament Change Flaw with runout
When I'm using a spool that I know is going to finish mid print I try to be around when the spool is finishing. I appreciate that's not viable for everyone, but when I can finally see the end tip of the spool, while it is still printing I unravel the last few rounds of filament and clip the bent edge with my cutters, so that its completely straight and wont get stuck in the sensor/printer.
I then load up my new spool, clip the end completely straight, and then manually push it in behind the finishing filament. This way it doesn't trigger the filament runout, and the printer continues to print normally right through onto the new spool, and there are no imperfections on the model being printed either.
RE: Filament Change Flaw with runout
and then manually push it in behind the finishing filament.
I have seen advertisements for filament fusing tools, and they weren't that expensive. Would that work here, has anybody ever tried?
RE: Filament Change Flaw with runout
If it’s expensive filament, I take the remainder (from the end of the spool), remove the Bowden from the nextruder and just feed in directly. I haven’t tried filament joiners because I read of people making a mistake causing the filament to jam in the nozzle heat break tube