1 (edited by SpikedGoat 2013-07-15 01:38:14)

Topic: Extruder stops while printing

I thought I had a clog in the extruder but after a cleaning, I am still having this issue where the plastic stops extruding while printing.  If I stop the print job and do a manual extrude it works great.  Any ideas?

2

Re: Extruder stops while printing

Too close to the print bed.  If you are getting anything out of the extruder, you're probably too close.  Re-level the bed with a slightly thicker media so you get higher off the bed.

3

Re: Extruder stops while printing

I had that thought too.  That didn't fix it.

4

Re: Extruder stops while printing

if your drive wheel on the extruder has too much filament built up on it from skipping then it may have trouble extruding over a new layer and yet be able to extrude into mid air... you might check it and clean with a small toothbrush if you see a lot of plastic in the grooves.

One way to check is to mark the drive wheel with a sharpie pen then start a print and look if the drive wheel still spins and the filament does NOT move when the print is going and the extruder stops printing.

5

Re: Extruder stops while printing

I cleaned the drive wheel.  That was one of the first things that I checked.

6

Re: Extruder stops while printing

I replaced the hot end and it appears to be working like a champ. I think there is a jam in the peek tube that causes resistance so it doesn't extrude.  Any suggestions on hoe to clean that out??

7 (edited by 2n2r5 2013-07-14 16:34:50)

Re: Extruder stops while printing

Acetone should work for that. Peek is resistant to most chemicals as is PFTE. The ABS should dissolve right out of there.

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

8

Re: Extruder stops while printing

Just soak the whole thing peek and all?

9

Re: Extruder stops while printing

SpikedGoat wrote:

Just soak the whole thing peek and all?

Don't put the electronics in there obviously ... but everything else is good to go. So just to be clear, DO NOT put the heater block or thermisor in the acetone. The nozzle, brass barrel and peek assembly can all soak in it.

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

10

Re: Extruder stops while printing

thank you very much.