2 Motors on Y , linuxcnc 2.9 not moving together

Ahh double minus sign ok thanks.

did you try inverting the 'invert motor' on the Motor page?
I do se that inverting the direction pin on the mesa page does not seem to work.

Chris

can you help me out if I have a cnc plasma do I have coordinate the table or the tool? maybe a stupid question ....

I think you are asking about direction of travel reference - it's tool movement.
In Pncconf when on the Axis page, press the help button - it should explain the direction designations.

Chris

something I also do not understand is :
I have a precision gear on my nema 23 with 5:1 and rack and pinion . the pinion has 25teeth which gives it a travel of 25mm
I even tested and motor 5 revolutions the gear 1

so usually one rev should be 5mm , which is equal to pinion 25mm divided by 5 revolutions makes 1 revolution 5mm

but look which setting I had to do in order to get approx 1mm travel (I got 0.9) when requested 1mm


I tried 5mm but then it travels a big distance (not measured)

I think you are asking about direction of travel reference - it's tool movement.
In Pncconf when on the Axis page, press the help button - it should explain the direction designations.

thank you Chris, that is great!

typical motor has 200 basic steps per revolution
8 times microsteps (200 x = 1600 steps per revolution
5:1 reduction gear box: 5 motor turns to one output turn (5 x 1600 = 8000 steps per revolution
1 revolution of 25 tooth pinion = 25mm travel of table
or .04 revolution = 1mm

So 8000 x .04 = 320 steps per mm

If your scale differed from that then it suggests that your assumptions of the mechanics are wrong. My guess would be microsteps setting.

Chris

Well Well , thanks again !
on off on on
makes 4 x steps not 8 x Shame on me :blush:
www.omc-stepperonline.com/download/DM556T.pdf

I have to try tomorrow ,

Also had this wrong xmax should be left and Xmin on the right side I used tool max min.


Thank you for PNCCONF!!!

Glad it was helpful.
Maybe we should add a router/plasma diagram too

Chris