mach3, steps & microstepping

[Jonathan]

You should be able to work it out more accurately by counting the teeth on the gears, so you can work out the ratio. Then count the teeth on the pulley and find out the belt pitch. Post the numbers and we can work it out, if it's not obvious.

[martin54]

You should be able to work it out more accurately by counting the teeth on the gears, so you can work out the ratio. Then count the teeth on the pulley and find out the belt pitch. Post the numbers and we can work it out, if it's not obvious.

That was actually my first thought Jonathan as I had a distant memory of doing something like that donkeys years ago when I could call myself an engineer lol.
Problem is that I didn't think of it before I put it all back together & now it's all sat inside it's little box it's almost impossible to do that so was hoping for an easier way.
If it has to come out again then so be it.

[ptjw7uk]

If you have a dial gauge you can fix it in the router and move the z an amount and see what the gauge says. you could also do the other axis by pushing against the gauge!
Peter

[martin54]

OK so I seem to be just about there now but what I don't understand is just how different my setting seems to be. On the mach3 set up video for motor tuning page they suggest a starting point of about 2000 steps & then the guy actually sets it at 1800. Mine is set now at about 100 which is miles away. Have the micro step on the drives for x & y set at 4. John had said that 3 was a bit coarse so go with 5 on a post above but it doesn't do odd numbers unless you set it through the software & I can't seem to get it to connect to my serial port. z axis is set at 2 on the drive & I can't remember what figure I ended up with for the steps in mach3 but again no where near 2000.