Re: Big servo motors drive recommendations

I used Gecko 320's to retrofit my big mill with a large (4.5" dia, 11"
long) 160 volt DC brush motors. The Machine is big with a 12X26
cutting area but fairly efficient with ballscrews and turcite ways.
I'm running at close to 80 volts with a 10 amp home made power supply
with BIG caps.

The Gecko's are costing me a bit on accileration and I can only get
around 120 ipm rapids.

This setup is not optimal but has proved to be very reliable and works
fine for me. I won't dispute the fact that more powerful analog or
digital AMPs would work better but the Gecko's are less than $150
which is about a quarter of what a better AMP might cost. I use Mach3.

There is some big iron on this group running Gecko's.

Roger