Hello, Im new to CNC but built one as a project, it have it up and running and it works great.
My only real problem is the motor tuning, im using 200 pulse 1.8 nema 23 motors, Gt3 belts and 20 tooth pulleys on X and Y and 2m pitch 8mm leadscrew on Z direct drive, I have my micro steppers set to 1600. My problem is that I need to set the steps per in motor tuning to as low as 13.5 to get it to move the correct distance on X and Y and set to 100 on Z, I have tried using the manual calcs, using the xcell doc, these did not work, I then just taped some steel rules to the X and Y axis and slowly tuned them to move right, I got them spot on and was cutting things perfect to scale with the readouts matching movement. These settings however seem extremely low compared to every thing I have read. So I then discovered the inbuilt cal tool in Mach3, so I ran this and it gave me the exact same as what I had 13.5 for X/Z and 100 for Z.
No matter what I do these are the only settings that work.
In addition, it does not matter what microsteps I set on the micro steppers it does not change anything.
Can anybody help me please, im lost as to what the problem could be, maybe the microsteppers are no good?