Quote Originally Posted by HankMcSpank View Post
Whilst rolling you're own is interesting (indeed, a rite of passage around these parts!) & you'll certainly end up with the most suitable machine, it'll likely consume you (as it tends to do with everyone else), I now look at owning a CNC machine as a means to an end (not a 'lifestyle'), so I won't be building anymore machines! (frankly, my engineering skills suck too!)
Totally agree – I think the idea of owning a CNC machine is very sexy and I look forward to that day – but – IT IS A TOOL for achieving a higher output and increased accuracy, too easy to get sidelined by the tech when there is work to be done and money to be made.

If I knew what I know now before I decided on what to do (for milling pcbs) ...I'd look out for something like a simple/small a sable 2015 secondhand (or import one new Sable-2015 CNC ROUTER / ENGRAVER-mill,PCB's,engraving(complete kits) | eBay ), but then upgrade the driving gear to ballscrews (as opposed to the bog standard M10 rod it comes with) ...the sable is actually incredibly well made.

I've got a 2015 machine ..I was going to upgrade it with ballscrews but then a proper grown up used 3020 fixed gantry (moving table) appeared on the scene & I snagged it....

http://img.alibaba.com/photo/7350997...ry_RS_3020.jpg

...but frankly, now that it's here with me, it seems way overkill to mill 1.6mm pcbs!

Alas, when it comes to pre-made machines, ballscrews don't seem to appear as standard until you get up to 3020 size machines (& even then, just the higher end ones)

Oh yeah.... you might want to consider ponying up for CNC-USB software (vs Mach3) as it has auto-levelling built in - and when it comes to milling pcb, a level copper clad board is what you want, what you really really want.

re using a CNC machine for pick n' place ...of course it can be done & on the face of it, it seems a fantastic idea...but check out youtube & watch videos of those who have turned their CNC machine into a pick & place machines.... talk about slow...... it's akin to owning a truck & expecting it to be as nimble & adept as a stunt motorcycle.
Milling PCB's was not even a consideration – but it does offer an attractive alternative to photo/toner circuit printing – as for the CNC-USB software that sounds very useful and although I have heard of the Mach3 s/w don't know much about it's capabilities. PS cheers for alerting me to the Sable - hadn't come across that one before.
Thanks for your comments HankMcSpank - regards Kev