X-Axis stutter
After letting it sit in the box for over a month (family medical issues), I finally assembled my MK3 kit and upgraded to firmware 3.1.3-245. Everything appeared to go smoothly, self test passed on first try, axes are perpendicular, 0.05° skew, X and Y belts at 281 and 282 (though I don't think I could pull them any tighter if I tried), etc.
Moving beyond calibration it was time to adjust Z. Having absolutely no idea what a properly squished line looks like, I searched around and found the idea to print a small 3cm square that is a single 0.2mm layer in height and measure the final product with digital calipers. I prepared my gcode and copied it to the SD card. After half a dozen similar failures, I finally stopped. Can anyone tell me what is happening in the attached image?
Filament sensor and crash detection are both off. While printing this object, I can see the x-axis stutter for a moment as it moves from side to side. The preview of the gcode in Slic3r looks normal and each print turns out slightly different, but all are messed up in a similar fashion. Between all the messed up infill and the outside perimeter that isn't even attached on the right, I'm not sure where to start troubleshooting.
Help me Prusa forum, you're my only hope.
Re: X-Axis stutter
Check your grub screws on the X axis motor pulley. Is one properly aligned with the flat on the motor shaft, and are they tightened correctly?
Re: X-Axis stutter
You are a life saver.
I thought I had tightened them pretty good during assembly but they worked themselves loose. Not sure how tight I can go without stripping them but hopefully they stay nice and tight for a while now.
Thank you!!!
Re: X-Axis stutter
The pleasure is all mine! Enjoy your printer 🙂