Need advice on cnc to pcb circuit job!

[alfons37]

Thanks

[davegrennan]

I built my first cnc for the very same reason as alfons37. Took me a while to even get as far as trying to route a pcb. You gotta learn how to cnc before you start on a pcb. Then theres the added complication of levelling, alignment pins for double sided etc pretty soon it all gets pretty darn hard. Prepare to destroy a load of copper boards. You gotta keep in mind when designing the boards that you can expect to route 0.1mm gaps easily so you need to keep your pcb design modest.

To get to the op's question, the machine you need will need to be super precise but not necessarily super strong, if knocking a few microns of copper off the top of a board is all the stress it will get. The chinese machines may well do the job, but you cannot be sure of what you are going to get with one of these. However given your budget, your choice is a cheap chinese machine or none at all.