Heya, I'm kind of a newbie to most of the CNC stuff.And run to a problem with the inaccuracy of the machine. For example, Z axis is like 0.6mm off the real dimensions, I either have to set -0.5mm cutting in Fusion to get the elements cut off, or lie to the Z axis zeroing it and then setting it -0.5mm below the 0 point. X/Y axis dimensions are usually off by 1mm which is also not good. The first thought Im having is to calculate the steps given to the motors and check them with the default setting. Currently they are set to 199.1 steps/mm so at default. I got the machine with LDO motors, which the shop selling refered as "NEMA 23 1.8º 12.6 kg/cm - 175oz-in": 57mm Hybrid Stepper Series | LDO Motors Went with it to the calculator: GRBL settings calculator And I'm lost, dont really know what should I input in the calculator fields. Feel quite stupid asking this, as the calculator may seem self explaining but I'm just completly lost. Could someone help me with the calculation?
Thanks went into that, and it was set to 199.1 steps/mm and was named "belt driven" changed to lead screw as this is what I'm having and it recalculated to 200 steps/mm. Gonna do some tests tommorow. Thankk you
Thats the calculator, its good to get a basic theoretical number to start off with - 200 assumes a perfect 8mm pitch in the leadscrew. In reality, the leadscrews are rolled, so there is a small possible error factor and thus after your initial calculated number, its best to use the Calibration wizard to further refine it to actual numbers that the machine does Just note that calibration means NOTHING unless you first check that everything is rigid and preloaded and set up perfectly square and true and plumb first
