? Extruder or other issue
Posted: December 4th, 2020, 1:54 pm
I have a Geeetech A20m, and had difficulty with temperature irregularity after a power failure. I assumed it was a thermistor--and replaced it--with difficulty getting completed prints due to failure to advance filament partway through a print. The extruder/stepper motor would click part way through and the print would fail.
I replaced the hotend entirely--new hotend, tip, thermister. Fans on the sides are functional. has 2-in, 1-out hotend. i have tried both of the extruders, and both continue to have difficulty. i had previously replaced the extruders on the stepper motors. There is no obvious issue with the extruders by observation. I thought perhaps it was an issue with obstruction of flow from the print surface, but had previously set z-offset for the new printhead as well as have a 3d touch to calibrate distance of z-axis. Tried reducing the Z-offset a little, still same problem.
i just now used Pronterface to have the extruder deliver 180 mm of material (in mid-air) and it partway through again had decreased delivery and stopped delivering filament. There would have been no occlusion of the tip with the print surface as it was in mid-air. i print with PLA at 210 degrees. I had earlier tried a print at 225 but still had the same issue occur.
I have only had the same PLA in the hotend since switching it out, so there should be no risk of plugged head, and also probed the tip without any obstruction noted (probe passed easily in 0.4 mm opening).
What am I missing???
I replaced the hotend entirely--new hotend, tip, thermister. Fans on the sides are functional. has 2-in, 1-out hotend. i have tried both of the extruders, and both continue to have difficulty. i had previously replaced the extruders on the stepper motors. There is no obvious issue with the extruders by observation. I thought perhaps it was an issue with obstruction of flow from the print surface, but had previously set z-offset for the new printhead as well as have a 3d touch to calibrate distance of z-axis. Tried reducing the Z-offset a little, still same problem.
i just now used Pronterface to have the extruder deliver 180 mm of material (in mid-air) and it partway through again had decreased delivery and stopped delivering filament. There would have been no occlusion of the tip with the print surface as it was in mid-air. i print with PLA at 210 degrees. I had earlier tried a print at 225 but still had the same issue occur.
I have only had the same PLA in the hotend since switching it out, so there should be no risk of plugged head, and also probed the tip without any obstruction noted (probe passed easily in 0.4 mm opening).
What am I missing???