Hi there,
I've been having some problems with my UM1. It works fine with prints up to 2 hours but when I try to print anything longer than that it either starts to underextrude and then it extrudes normally again or it alltogether stops extruding.
I've been trying to print a case for two weeks now with very poor results.
Up till now I've:
- cleaned the nozzle
- made sure that the screw at the back of extruder was tight but not too tight and that I have a constant flow of PLA
- switched the steppers with eachother (I thought the motors were overheating, it wasn't the case)
- cleaned the extruder, made sure there was no PLA reside on the screw inside the extruder or the plastic wheel that pushes the filament
- tried different PLA
- additionally, because of other problems I've had, I've made sure the belts are alligned and tightned.
Here are some pictures of parts I've been trying to print:
https://www.dropbox.com/s/mj8yx0mm375o5fs/DSCN7350.JPG
https://www.dropbox.com/s/yitmmqxbhw8fsx0/DSCN7351.JPG
https://www.dropbox.com/s/8lix1e4ou1ys492/DSCN7352.JPG
https://www.dropbox.com/s/j0gth8fu27ru13n/DSCN7353.JPG
I've run out of ideas. Has anyone had problems simillar to mine?
Thank you all,
ina