help with axis configuration

I would guess that you are running up to the maximum speed the step generator will allow with the driver timing you have set.
Without more info on your hardware can't help you more.

Getting the machine to move the right distance and the right direction is the first thing to do.

Chris M

how about:
lead screw pitch
both of the pulley teeth count.

What resolution the step drive is set to.

Chris M

pully teeth count is 20

lead screw pitch (only have this on the z axis, the other axis are driven by belt and pully)


Tr8*8-2p (4 starts)
Lead Screw Diameter ∅ 8 (mm)
Pitch 2 (mm)
Lead 8 (mm)
Stainless Steel

At the most basic level, you need to know how far each axis moves for one rotation of the motor. (200 steps)

You can either calculate it, or you can measure it.

From that you can then calculate how many steps of the motor it takes to move an axis by 1 machine unit ( either 1 mm or 1")
That is your SCALE figure in your .ini file

Knowing that one pulley is 20 tooth is not useful, unless you know how many teeth the corresponding pulley has, to work out the ratio.
It would be unusual to have a quadruple start lead screw, but you can soon test it by seeing how far an axis moves for one complete turn.

Then you can add the multi-stepping factor of the driver. If you have high gearing you do not want this figure high as well, or you will generate a huge number of steps to get nowhere.

I am new to this, and the linuxcnc book is a blurr to me at this point after reading like some 900 pages, well it seems like 900.

I might be confusing some things here. so i have configured the axis to move the proper distance, my concern was after i config this i noticed the movement was slow, not too slow (confused this would effect the feed rate)

so in the config settings is it all about getting the correct settings so the movement on the axis moves the correct distance, or is it about the speed the motor moves, if i am correct it is about the measurement of the movement.

then in g code the the feed rate can be adjusted to speed up the machine???? this is were i am confused or mixing the two topics.

i have configured the axis to move the proper distance

Please attach your configs ( just zip the entire folder) then we will know what we are talking about.

in the config settings is it all about getting the correct settings so the movement on the axis moves the correct distance, or is it about the speed the motor moves, if i am correct it is about the measurement of the movement.

What are your measurements and all your ratios?
You can get the axis to move the correct distance, but still have completely wrong figures.

You have to get both right.