So this is my question.
Is this thing possible??
Sure! Given enough time & money virtually anything is possible but, let's be practical....
1. Are you using a plural component Urethane Formula?
2. What do you mean by "I have those pumps"? The .pdf that you reference is a general brochure and lists MANY different models/systems-which one do you currently have and What kind of motor is currently turning your pumps now (i.e. Inverter duty? Variable speed? Voltage? HP?)
3. IMO-I don't think that it is practical to use a stepper to turn a pump. As mentioned previously a stepper needs pulses to move- those pulses need to be generated by something but from where? There are a couple of possibilities but, again, I question their practicality (admitadly due to my inexperience with these methods....
A. I suppose you could use a 'Brain' to use the Blended Vel DRO signal to somehow generate pulses (I think that Scott/Poppabear would
be the specialist in this area)
B. Slaved Axis won't work because X & Y move in + & - and you want your pump motor to only move in the +
C. You could use some database software (like access or excel) to modify your G-code file and add lines to your existing G-code that create
additional commands to generate pulses for another axis.
4. Like I said before- you need to 'tie-in' to the Blended Vel DRO and use that signal to drive something (or generate pulses). I really think that best way is to use Modbus to use this signal to drive the analog input on a VFD
HTH,
Sid