[crimar]

Hello!

I am building a smal and simple CNC for the solsylva plans. The 13x13" model.

This CNC uses a regular threaded rod as a leadscrew, but i can seem the get the mathematics right. Can anyone help me?

My steppermotors are regular Nema 23s and they have 200 steps per rotation, and i am planing to use 1/8 microstepping (or should i choose differently?).

THe threaded rod i am using is a normal M6 rod (ISO standard). The pitch between threads is 1mm.

Anyone who can help me with the math?

[mactec54]

crimar

If you are using Mach3, it will do it for you,there are videos also on youtube how to do this when using Mach3, Plus in the Mach3 manual

[garylmast]

In Mach 3, under the setting tab, just above the Reset button is the Axis Calibration. Play with that until it gets you where you need to be.

[crimar]

Hello! Yes i am using mach3. Could you link one of those videos? Thanks!

[crimar]

In Mach 3, under the setting tab, just above the Reset button is the Axis Calibration. Play with that until it gets you where you need to be.

Okey, thanks! Will try this!

[Mzones]

Does anybody have any basic math skills anymore?

[crimar]

Does anybody have any basic math skills anymore?

The problems aint my math skills, but i dont know the formula.

Peoples lack of common decency if beoynd my belief Mzones.

[Spk64]

Assuming your units are mm.
Does not get much easier for your setup.

200steps x 8 (1/8 micro step) = 1600 steps per revolution
1mm pitch lead screw = 1mm per revolution

Mach3 needs to know the steps per unit setup. If it is in mm then
1 unit (mm) movement = 1 full revolution or 1600 steps
So your steps per unit = 1600


Steve

[crimar]

Assuming your units are mm.
Does not get much easier for your setup.

200steps x 8 (1/8 micro step) = 1600 steps per revolution
1mm pitch lead screw = 1mm per revolution

Mach3 needs to know the steps per unit setup. If it is in mm then
1 unit (mm) movement = 1 full revolution or 1600 steps
So your steps per unit = 1600


Steve

Thank you very much!