devilflash 2 Posted October 21, 2015 in Can't print in proper conditions (edited) Hi everyone, I've huge problems to print with my Ultimaker2 since a while. I can't make 2 print in a row and need higher temperature than needed. After a while, the filament got totally cropped and the print continue without extrusion. I'm at the point where I have to make an Atomic cleaning between every print and have to print Colorfabb intense green PLA at a temperature of 240° and 100% material flow in order to finish my print (which isn't even 100% certain). I've a new bowden tube but I had the same problem with the old one. I came back to the stock feeder but had the same problem with Robert's one. Thermal probe seem to work as I haven't much variations in temperature range. What can I do? A complete cleaning of the nozzle with acetone and scrap the inside with a needle? Send it back where I bought it for a complete maintenance? I'm a bit perplex and want to cast it through the window to be honest. I've almost wasted a complete roll of PLA. And the fact that I know that when I come back home from work, I'll have an unfinished print waiting for me is quite exhausting. Edited October 21, 2015 by Guest Share this post Link to post Share on other sites
Labern 716 Posted October 21, 2015 in Can't print in proper conditions You might have a deformed PTFE coupler. there is a write up and images Here that may help Share this post Link to post Share on other sites
devilflash 2 Posted October 21, 2015 in Can't print in proper conditions I removed the coupler, it was black with a small bottleneck. I grinded the bottleneck and order a new coupler. Would like to do a complete cleaning of the nozzle but too afraid to remove the thermal sensor and heat resistor. Maybe I'll invest in these couplers: Teflon Couplers And the olsson heat block to make the maintenance easier: Olsson Block Finger crossed! Share this post Link to post Share on other sites
Labern 716 Posted October 22, 2015 in Can't print in proper conditions That is a very good idea. It's definitely worth it Share this post Link to post Share on other sites