Jamming & Failed Prints
Hey everyone,
I've looked at just about every forum post I've seen on this topic and tried just about everything that was recommended but I'm still having a really frustrated (and seemingly common) problem. I'm printing a 5"x5"x2.5" city model at .1mm layer height and every time it gets 15 hours or so into the estimated 36 hour print, the nozzle clogs but the print continues without filament coming out. The PLA left stuck in the extruder becomes brittle and will snap when bent. Here are the things that I have tried so far:
1. Changing filament
- I went from Matterhackers Pro PLA at first, to Prusa's PLA
2. Unplugging the filament sensor
- Several people had suggested elsewhere that heat from the filament sensor was causing the PLA to deform above the nozzle, but this didn't work
3. Increasing the heat and decreasing the speed
- I changed the temperature which was at first 215 on the first layer and 205 on every other layer, to 220 on the first layer and 210 on every other layer- I also decreased the speed of infill from 200 m/s to 100 m/s
4. I cleaned the nozzle manually by heating it up and using an acupuncture needle, and by doing several cold pulls.
I haven't tried increasing the layer height yet as I wanted the print to be of a very high quality, though my only previous long print was at .15mm and it had no issues. I will definitely give this a shot, though it would be super frustrating to not figure out the actual problem. Please let me know if you guys have any advice!
Re: Jamming & Failed Prints
I tried a different filament. It continues to fail in different places every time. Sometimes it fails while just doing the support layers, sometimes it fails a little further along. Any thoughts?
Re: Jamming & Failed Prints
Issues like this can be caused by incorrect tension on bondtech gears. Too little tension and the gears will skip over each other when the resistance increases eventually leading to the filament cooking in the hotend and causing a clog. Too high tension can lead to excessive filament grinding and clogs or lost steps.
If you try and take a cat apart to see how it works, the first thing you have on your hands is a nonworking cat.