Prusa Core One L
My company I work for just got this new prusa core one L and I've already had 13 successful prints on it. I had started a bigger print for over the weekend and when I had come into work the following Monday, it had "finished the print" but the part was clearly not finished. The nozzle was clean and does not look like it has slipped down at all, but I tried resetting it and making sure the copper was barely visible. I tried purging the material and it would make a clicking sound. I tried tightening the idler swivel screws a little more than recommended, I've tried loosening the same screws, I've inspected the gear box gears for any damage and even tried tightening the nextruder idler screw inside the main plate of the gear box. I tried purging the material again and the clicking sound happen would still occur. Next, I unloaded the material afterwards with no issues. Finally, I tried reloading the material and the same clicking would happen.
RE:
What filment is it? I'm assuming PLA. What kind of nozzle is it? I'm assuming 0.4mm CHT (High flow)
Anyway, the nozzle is clogged. Try doing a cold pull. On the screen goto Control -> Cold Pull and follow the instructions.
If that doesn't work then pull out the nozzle and insert a piece of filament into it and see where the blockage is. If it is inside the tube then you can try reaming it out with a 2mm drillbit. If you do that obviously don't run the drill just attach the drill bit and manually turn the nozzle against it.
RE: Prusa Core One L
I guess this happens to everyone, sooner or later. Search for "cold pull" and plan some time (an hour or two or three - heating and cooling down takes time when experimenting) to perfect the process.
Alternatively, search for "stuck nozzle". A spare nozzle would be immensely useful if the printer needs to run, but cleaning it should be routine (if rarely needed once everything runs smoothly).
Most likely you have a high flow (CHT) nozzle. Careful with steel needles - as sold by Prusa - they are very fragile inside.
RE: Prusa Core One L
Its the basic PLA that came with the printer and the 0.4mm CHT high flow nozzle. Funny enough as I was looking into the cold pull, I had unlatched the idler and found that a tiny piece of filament had broken off mid print and jammed itself in-between the idler and the main big gear of the gear box assembly. I got it out and started a print and it took right off. Maybe it was just an impurity in the material, or something else? Any suggestions on preventing this from happening in the future?
RE: Prusa Core One L
Also, you might want to try printing PLA with the door cracked open.
RE: Prusa Core One L
Its the basic PLA that came with the printer and the 0.4mm CHT high flow nozzle. Funny enough as I was looking into the cold pull, I had unlatched the idler and found that a tiny piece of filament had broken off mid print and jammed itself in-between the idler and the main big gear of the gear box assembly. I got it out and started a print and it took right off. Maybe it was just an impurity in the material, or something else? Any suggestions on preventing this from happening in the future?
PLA can get brittle as it ages or if it is overdryed and can snap in the extruder gear. But good you found it. It's the correct approach, i.e. looks for foreign material or debris in the filament path (this includes clogs).