Hello,

Mach is great but is limited to 45000Hz and I can't get decent speed at high microstep resolution as 51,200 Steps/Rev is common these days.

I hear Mach's 45000Hz limitation is imposed by parallel port, not by computer motherboard/CPU.

So I would naturally assume softwares that use USB port will have higher pulse rate.

Or even better pulse rate by using "dedicated PCI card".

Anyone heard of these types of software?
I would appreciate if you could inform me such softwares exist.

Thank you and have a great day.