Built my own Cnc mill and need help to calc steps per mm

[wes709]

Trying to figure out my steps per mm Using the Rep Rap Calculator
Here is the link to the NEMA 23 Steppers that i bought as a kit with the cnc controller.
3 Axis 3A Stepper Controller CNC KIT NEMA23 24V PSU FOR Milling Machine | eBay
Here is the link to the leadscrew i have selected
T8 800mm Stainless Steel Lead Screw Set with Shaft coupling and Mounting Support Sale - Banggood.com
From the above sites i was able to determine my:
Motor Step Angle 1.8
Leadscrew Pitch 2mm
I have the dip switches on my cnc board set to be at 1/8 micro step.
The part that i think im messing up is the pitch preset where i am only guessing that is m8 1.25 mm per rotation.
With the above information i get 800 steps per mm which seems absurd
PLEASE SOMEONE HELP ME if i roatate the rod 1 full revolution it travels 8.1mm
Am i just messing up the calculation???

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[Eldon_Joh]

you should see 8mm per rotation, 2mm pitch x 4 leads.

200 steps per rotation, if its 8mm is 25 steps per mm.

times 8 microsteps is 400.

[wes709]

Thank you ! your a genius!

[wes709]

Im Back !!!! please still be here

Adding a rotary axis and i need help!

[wes709]

update 4 hours later