Sorry in advance I’m a newby
I have the robo 3d R1+ and I have run the sample roll land half of another pla roll with t out many issues.
So I figured it was time to try abs.
So I made a dry box loaded up a roll of white repchord and set the temps according to the guide on the package. Half way through the first later it stopped feeding.???
Now it seems like it’s clogged up.
1 how do I clean the extruder out
2 what caused this.
- Heat the extruder up, and pull out the filament.
- turn off the heat, and unscrew the nozzle and clean out the feed path because the extruder would have shredded the filament line and created debris, also causing blockage.
- If the nozzle is still packed solid, use a heat gun to soften the crud and use a drill bit to clean it out.
- if your filament is made from recycled materials, send it back because its contaminated, or is a mix of different plastics with different properties, causing the filament to heat and melt at different temperatures, causing the jam.
- Otherwise the filament was not warm enough, or heat creep went up the filament and caused it to mush unstead of flow. Not using a fan can cause this, or too many retracts in the printhead travel path.
@MidnightVisions there is an element and sensor on a block surrounding the nozzle.after unplugging those does the nozzle just unscrew from the what looks to be a heatblock/ sync. Or do I need to remove something else?
The bras tip should just unscrew with a wrench without having to remove the sensor.
@MidnightVisions thanks for the clearity .Was able to clean it out fairly easily.
Afterwards i printed some zipper pulls in PLA and one in ABS without problem.But when i tried to do the object that screwed up before. i could see it mushing instead of sticking to the bed.The ABS roll is labeled 235 and the bed default for abs is 80.
Isn’t this low for ABS?
@Chris_Skinner My bed runs at 105-110 with abs. Those are the starting points, and each printer may require slight changes for the perfect, or most reliable print. Although some others have sworn ABS prints best without a heated bed, and others swear that no fan at the printhead head works best, each machine is different and it will take some experimentation with each type of filament to see what works best.
Some ABS objects with too much infill will tend to retain too much heat and remain too soft as you build upward. They will float around like jello, and some exposed corners expand upward, interferring with the printhead, that’s a big one to troubleshoot. The trick is to lower the bed temperature after the first few layers have stuck, and reduce the infill so heat can escape. It all depends on the object shape with ABS.
UPDATE:
managed to get the piece printed.
extruder 250 bed 100 no fan for 3 layers. 40% after that
Excellent adhesion and the part looks good.One http://issue.is there seems to be separation between layers so im thinking its weak.
@Chris_Skinner Separation can come from weak sides, heat creep from the bed keeping the parts too warm that they move under the force of the speed of the print head laying down new filament. Wobble in the mechanism, sometimes. Its a long process of refinements and a pursuit of perfection.