Quote Originally Posted by Musht View Post
Quick google brings up:

http://www.youtube.com/watch?v=BAnYg...hannel&list=UL

Cheers
Adam
Well at least it's got two motors on the X-axis, but if that's what you get for £5k I take back what I said about it being worth a look. The machine in that video has lost most of the good things from the ones in the eBay listings. It uses supported round rails and worse small unsupported rails on the Z-axis badly orientated, plus the spacings between the bearings looks small. Rack and pinion not ballscrew, router not a proper spindle...

These are all things you should look for - profile rails (generally Hiwin is used), ballscrews on all axes (no need for rack on such a small machine), proper spindle not a router. Once mounted properly supported round rails aren't too bad, but since you're willing to spend £4k ish you should be able to get profile rails which will increase the rigidity which is the among the most important aspects of the machine.

The title of their other video of that machine says it all really - Low cost CNC Router, not 'High quality CNC Router'. The video shows the machine cutting pretty fast (due to the rack and pinion), but what about important things like resolution and surface finish? Not a clue from their video which is why you need to go and see it cutting.