Skewed Y-axis on prints

#1
Holy cow! My first print looked like Alien 4!

After some searching over the internet it turned out I need to adjust Y-axis acceleration, it was too high. Found a way to do it on LCD screen, however, these settings get lost after I turn off the gMax.

Solution:
Use some g-codes to set parameters before printing starts.

To set x,y maximum accelerations use this line:

Code:
M201 X7000 Y3400 ; AmaxX = 7000, AmaxY = 3400
Mine was set to 9000 by default, after testing I ended up with 7000 for X and 3400 for Y.

See attached image for where to put this in Slicer. Remember to save your Slicer settings.

Enjoy!
 

Attachments

#2
1) turn your acceleration down to X800 Y800.

2) Tighten the Y Belt

3) Make sure the Y drive gears are aligned so the belt isn't catching on the side walls and causing gear to skip.

4) Lastly, check your pots for the Y axis stepper motor.

Try those :) My prints looked just like yours when I first started.