Strange output from a good gcode file
I am trying to print an stl file that is included in the attachment. I have included the .stl file, the gcode file, and the Prusaslicer parameters. When I view the gcode file, it looks good, however, the print has overshoot at the bottom.
Can anybody tell me what is going on with the print and why I am getting the lower overshoot?
Senior Life member of IEEE.
Y axis bearings?
Looks like major axis shifting - if this is the Y direction (left to right in your picture) that you are seeing that "over shoot", it is either your Y motor grub screws (tightened them in correct order) - or your bearing carriage clips are too tight (requires removing the heated bed plate to adjust).
A very long shot
This is extremely unlikely, but there was a bug in firmware version 3.8.1 that would cause something like this if you printed using OctoPrint.
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He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
I found the problem
I found the problem. The Y axis drive toothed pulley on the motor shaft was full of dirt/filament leftovers, and the belt kept giving resistance/overshoot when it encountered the stuff between the pulley teeth. I took off the toothed pulley and cleaned it with a can of compressed air and an dental pick (the dental pick seemed appropriate since I cleaned between the teeth). I also lubed the Y axis rails and bearings, and lubed the pulley at the other end of the belt.
I have a belt tensioner on the Y axis belt. Have had it since I built the printer. Works well.
Printer works fine now. No overshoot.
BTW: I have no idea what a "grub screw" is.
Senior Life member of IEEE.