Yeah I have the G203V's right now.
I'm just trying to figure out the rack and pinion thing. Seems part of the speed problem with some of these are from the ball screw so seems a R&P setup is better in regards anyways.
I'm also thinking about getting a real spindle. I've been looking around on ebay and what not. I know some have used the Chinese spindles with some luck. I'm not sure if I want to go that cheap but it seems the next best option is 2k. So maybe the Chinese ones are worth a shot lol. There was a couple I saw that I could possibly swing for but total cost with VFD is going to be ~2k or so. The Chinese Spindle I was looking at was 3KW water cooled with VFD for 650 or there is a 4KW with VFD that's air cooled for 800. Was looking to spend ~1k for a Spindle but it seems the nicer brands are quite a bit more.
These are the couple others I was looking at.
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT
Not sure if those models would be much better but I believe they will run at a lower speed then the Chinese one. From what I understand the min speed seems to be 10k RPM for the Chinese models although not sure how accurate that is? I'm not real sure if 10k RPM is slow enough for good aluminum work.
I may go with Joe's Hybrid kit to get me started and then slowly modify it cutting new parts out of aluminum instead of MDF and HDPE for the gantry and what not with the machine.