Hotend issues

VoyexTech · April 4, 2017

While I should probably expect this especially considering how much I modified my hotend. I bought an e3d v6 hotend a few weeks ago: http://e3d-online.com/E3D-v6/Full-Kit/v6-3mm-Bowden

And I ended up breaking the nozzle and losing the heat break. So I replaced the heatbreaks and nozzle with 1.75mm variants and then ran 1.75mm filament through it. It seems to work for a little bit and then after a while my extruded like the stop extruding. The issue seems to come somewhere from the heater block area of the hotend. If I pull out the filament, cut off the end and put it back in it works for about 15 again before I have to repeat this action and I'm wondering what this could be... As the same block + nozzle + barrel (heatbreak) worked on direct drive setup.

Hackentosher · April 4, 2017

2 hours ago, VoyexTech said:

While I should probably expect this especially considering how much I modified my hotend. I bought an e3d v6 hotend a few weeks ago: http://e3d-online.com/E3D-v6/Full-Kit/v6-3mm-Bowden

And I ended up breaking the nozzle and losing the heat break. So I replaced the heatbreaks and nozzle with 1.75mm variants and then ran 1.75mm filament through it. It seems to work for a little bit and then after a while my extruded like the stop extruding. The issue seems to come somewhere from the heater block area of the hotend. If I pull out the filament, cut off the end and put it back in it works for about 15 again before I have to repeat this action and I'm wondering what this could be... As the same block + nozzle + barrel (heatbreak) worked on direct drive setup.

So the problem is it stops extruding until you pull the filament, cut it, and try again? Sounds like you may have some gunk in the nozzle and/or melt zone. Heat up your nozzle to temperature, push some filament through, then cool the nozzle down to 100c (this is assuming you're using pla. 100c is when pla turns soft, but not viscous. Idk what to use for higher temp filaments), let it sit for a lil while, and then yank the filament out. This cold pull should remove all the material in the nozzle. You can also try removing the nozzle and blasting it with a blow torch to burn everything out. A grill lighter also works in a pinch. Be careful though, you will probably have flaming molten pla dripping out of the nozzle. Also don't heat it too much or you'll probably deform the brass.