I'm not sure doing what you suggest with the G320 is even possible, and IF it is it won't be easy or someone would've done it already - me thinks.....
The reason Gecko doesn't build a high voltage drive is, acording to Mariss, that the market is MUCH smaller and he fears US lawyers will come after him after some stupid idiot have electricuted him/her self by not following the docs, rules and regulations.
Then we have the Rutex products which you apparently have hands on experience with, we have the Mammut from CNCDrive which I have hands on experience with (not good so far), we have the Viper drives that by judging purely from a photo seems to be using a 32V rated automotive fuse on a 170V rated drive. Designing high voltage, high current drives is NOT easy - that's probably why there aren't any good ones around....that you can afford....
What new version of the Viper is this you mentioned? Any additional info or links?
I'm not trying to push the HP-UHU here but I do feel it MIGHT be an option for you. Like I said, there's still this problem with the encoder input that needs to be figured out once and for all but then I think it might be a good candidate for your axis motors atleast. The 20HP spindle motor is whole different animal though....
I'm not sure about the current status of kits but I know Paul and Irfan mentioned they should put a few more together. By getting the kit you get everything you need except the UHU-chip and X-tal which you have to get from Uli Huber in Germany.
And, as far as I know no one has had a problem with the powersection on the HP-UHU yet, (if you don't count me shorting the output that is) so that part of the circuit seems to be working really good. And, since you are a programmer you might be interseted in developing the next generation controller chip for the HP-UHU ?
Yes, it's a kit, yes you'll have to some soldering but if you're conciddering the Gecko/external H-bridge thing it seems that part doesn't scary you ;-)
Which ever way you go I wish you the best of luck and be sure to let us know of your results! Good luck!
/Henrik.  |