I bought one of these 3 axis CNC routers via ebay. My goal is to make my own PCB's with it. Well, yeah; that's my goal. But in the 9 months I've owned it I've not yet been able to get a satisfactory piece of work from it. As is usual with most things from China via Ebay, the documentation was non-existant. I got most of my information from other frustrated owners on various mailing lists and message boards.
|Sales picture from ebay|
I say "properly" as the supplied controller (the thing in the black box) was pretty lacking in its features. Not only that but when I tried to use the demonstration CNC projects supplied with the Linux software the router became intermitant. Investigation of the controller box revealed that the enclosed circuit board was not grounded at all!! It relied on a single screw thread poking through a mounting hole. Unfortunately the screw head was covered in paint. A wire brush fixed the paint problem and a few other ground cables added here and there brought the lighted power switch into operation. Great, now it would route the demonstration piece.
|Rear panel of the controller|
|Inside of the controller. Note linear PSU and 2 control boards|
|Spindle control not connected to anything|
|Limit and bit spindle outputs not connected to anything|
|Limit switches brought to the back of the control box|
|A-axis output just below the left white connector|
Since starting on this journey I have run across some other websites that have also found the same issues as I have. This one is by far the most detailed.