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Sorry for the delay, been busy at work. I have 3 different versions Of the driver, I am using k eight now. And I did find out that it was just wouldn't work with my old m5r2 drivers. I ordered a few...

Well after getting my friends o-scope and running some test on my parallel port Bob's and the nvum. I think I found out my problem. It's the step pulse is to small coming from the nvum at 2uS and my...

I agree about the torque curves, I have a email into there tech department about that now.will post them here if I get them. As far a no reverse that wouldn't be too big a deal as the factory setup...

after looking around I am thinking about going with one of these but haven't found anyone using them. any one got any thoughts

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hope this is the right place for this post. to start I have a sieg x2 mill. with a bad motor and controller. So I decided to replace it with a Chinese 110v 1.5kW, water cooled spindle and VFD.( big...

No problem. I ended up not using mine. Everything worked but it would not drive my stepper drivers. No matter how I tuned them. They would just sit there and chatter. Not sure if it was a bad nvum or...

Here they are

I'll try and snap you a few after work tomorrow.

I bought the NVUM to upgrade my old LPT cards. have got most most to work, but cant get the steppers to work all they move really slow or just jerk and hum. (they worked great with last card.) I am...