Centroid Community CNC Support Forum

Big mistake to drive the spindle at 1:1 ratio. "full motor torque down to almost zero RPM" is salesman talk. We personally made that mistake on a Monarch Lathe when we converted the old DC variable speed (vac tube technology) to an AC inverter and motor. we removed the 2 speed gearbox when...

I know this is a late reply, but it might answer the question for others. I have two Hitachi VFD's used precisely because it enabled me to run 3 phase motors on single phase power. The added benefit is that I now have variable spindle speed on my mill and drill press. There should be a parameter set...

Scott, I can't PM you back, I get this message: We are sorry, but you are not authorised to use this feature. You may have just registered here and may need to participate more to be able to use this feature. Apparently I don't participate enough :roll: I left another message on your cell phone with...

Thanks for the reply Scott (and Marc). I am interested to see what we can work out. I too was given the "proprietary" runaround with SWI. :roll: I'm not suprised you've had many other inquires for a conversion, it's a well built, stout piece of iron paticularly suited to the "garage m...

I'm interested in replacing the Prototrak MX2/MX3 control on my 1996 Trak DPM Bed Mill. Trak DPM.JPG I see in the machine retrofit gallery that a SWI Prototrak has been done already; I've searched all nine pages of the forum but there's nothing on a machine like mine. I am wondering what hardware (b...