[Shelby5041]

Hi
I have a labvolt 5400 (sherline 5400)

Im trying to retrofit by simply using a cheap mach3 bob and using existing electronics

The labvolt has a dpindle control board...Does anyone know the process to connect spindle control board to to mach3 bob?

[Shelby5041]

i was able to figure out the stepper motor wiring and i got mach3 to jog all 3 axis so im off to a good start but

im not sure how to wire up the labvolt spindle

hope someone can help

[Shelby5041]

Hi
I obtained a schematic for the stock spindle speed controllerand per schemstic a 5k potentiometer can be connected to p1 p2 p3 to control spindle

I will try this.

[Shelby5041]

i was able to figure out myself

[pugsly]

Any tips and tricks? I'm getting ready to take a look at this, just picked up one at an auction.

[Shelby5041]

Hi
Assuming ur labvolt functions ok...i bypassed the pc board inside and used a cheap mach3 breakout board

I kept all other electronics

There are lots of ways to retrofit...after 2 yrars of tinkering and once i found out it was very difficult and costly to find the orig proprietary software and retrofit it.