CW8060 or alternative?

[Tenson]

I am currently using 2x CW8060 drivers on my Y axis (long) and a singe 2M542 driver on the X (width) axis.

I think this is probably limiting my cutting speed, so I want to put a CW8060 on the X axis too. They don't seem so readily available as they were 2 years ago, so is it best to search one out, or just use an alternative (now better) model?

If someone has a CW8060 to sell cheaply, please contact me!

[EddyCurrent]

Some here
Stepper Motor Driver 6.0A, 80V CNC Microstepping CW8060 (http://www.cnc4you.co.uk/index.php?route=product/product&path=82&product_id=29)

[Tenson]

Thanks. I found that too but I was hoping to get used a little cheaper ;)

[Jonathan]

If I recall correctly you're using 3Nm motors, so the phase current is 4.2A? If so then there are plenty of drivers to choose from - DQ860MA is generally a cheap one that works well.
What speed are you getting on X and Y? How much different are they?

[Tenson]

I've got 4Nm motors on all axis.

Difficult to say about speed exactly. I was using a max of 7m/min mostly just doing rapids. I found there were sometimes missing steps and position was slightly lost. I dropped that down to 5m/min and it worked better. Still I don't cut faster than 4m/min or things like sharp corners become rounded.

What are the differences between DQ860MA and CW8060? They looks about identical.