Hello RepRap Community,
I recently completed building a RepRap Prusa Mendel I2 from NWRepRap. All of the axes are working great and everything seems to be in order except for the extruder/hotend. When printing, the extrusion is inconsistent- this is visible in the attached image. I have tried adjusting temperature up and down, changing the settings for filament diameter, and calculating steps per mm for the extruder motor, but the problem remains.
Another problem that I noticed that may or may not be connected to this is the stepper motor. It can extrude at slow speeds just fine, but when retracting or extruding quickly, it buzzes and vibrates. I have adjusted motor current up and down with only slight variations of the problem.
Thanks, icecats
The image can be found here: [drive.google.com]
Edited 1 time(s). Last edit at 11/14/2014 12:19PM by icecats.