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I don't know what size or kind of CNC machine you're looking for, but have you considered an off line controller? I have a 3020 router with a DDCSV1.1 controller. The biggest advantage is that it...

I have been etching my own PCBs for some time and I use single flute ("D") cutters in a 1/8" collet. Carbide or tool steel will work fine for etching copper. I use solid carbide, but tool steel...

My 3020 CNC router turned out to be a solid little machine but I discarded the power supply. It worked, but very poorly. I built a liner (non-switching) power supply and motor driver for less than...

I've not tried using servos. The stepper motors worked fine but I did have trouble with the DC spindle. I wanted to rout polycarbonate plastic but the plastic kept melting even at the lowest...

http://www.cnczone.com/forums/attachment.php?attachmentid=383556&stc=1http://www.cnczone.com/forums/attachment.php?attachmentid=383558&stc=1Well all the parts arrived. The router itself (3020...

I'm sorry if I got the designation,RS232, wrong. I knew I would need many wires to go from the off line (no computer) controller to all of the components in the router controller.(such as stepper...

I've ordered a Chinese 3020 cnc router and a DDCSV off line controller. The router is advertised as USB, but the pictures show a parallel port so I'm not sure what I'm getting. Either can be wrong...