cotton

Thank you. I will be in the office early next week. Will try the recommended steps and post the outcome. Best.

Thank you for the response. I did try to heat up the nozzle move the filament using the 'Move material' option under Maintenance. The machine did clicking noise as the dial was rotated but it did not move the material through the nozzle. Next I went ahead replaced the 2.85mm coupler with the insert with a new 1.75mm coupler that was free of the insert so the filament can flow freely. Even that did not help with the issue. Best

I had modified my Ultimaker 2+ printer to be able to print with 1.75mm filament. I used the kit from Dynamism (https://www.dynamism.com/mosaic-palette-ultimakerconversionkit.html) to replace the extruder arm, Bowden tube and add a short hot-end PTFE sleeve in the print head. After couple of tweaks I was able to move the 1.75mm filament freely through the feeder to reach the nozzle. The problem that I have now is that after reaching the nozzle the filament does not flow through the nozzle as can be seen in the video included. During the run, the filament does get slightly grounded at the feed point which I think should not be a big problem. The issue is that though the tip of the filament is inside the very hot nozzle (220 C) it still retained its original structure without melting. The nozzle is a new one hence there is no blockage in it. I wanted to see if anyone has a suggestion as to how to resolve this issue? Thanks