Y axis moving different rate while in middle of job

Started by samsomiller on Apr 19, 2015 in grblShield Support. 1 reply, last activity Sep 29, 2015.

samsomiller Apr 19, 2015 #7643

Tricky Question,

My Shapeoko 2 Full kit was finishing a job when all of the sudden the Y axis started traveling way faster than the X, and Z axis.
Example, Using manual control via Easel, and Universal G Sender,
I am set to move machine .1", When I jog machine on X Axis, it moves .1", for the Y axis, it moves 1.1".

I tried swapping the X and Y stepper motors on the GShield to test if its the motors, or the GShield. After Swapping, now the X axis moves too far.

I swapped back to normal after learning it must be the GShield.

Has anyone seen this issue, or know how to fix it?

FYI, i haved flashed the hex file numerous times trying to fix this problem.
Thanks ahead of time, Sam

mtschaef Sep 29, 2015 #8791

I'm not sure what version of GShield you are using. It sounds to me like one of your settings for "step/mm" is wrong for your "x" axis.
This is an example of what settings it might be.

$0=43.740 (x, step/mm)
$1=43.740 (y, step/mm)
$2=640.000 (z, step/mm)