PC board milling?

[Nan and Sandy Sanders]

Terry, I think we had an AMRAD meeting with a talk on PCB milling 
with the conclusion being it works but not well. When we looked at 
getting one for work it seemed like the biggest use was for RF prototyping.
      Sandy
     WB5MMB


At 10:53 PM 12/30/2015, Terry Fox wrote:
>Hey guys, I am considering building or maybe buying an inexpensive 
>CNC milling machine that can make circuit boards, as a 2016 
>project.  I often design stuff, and then hand build a prototype 
>using point-to-point soldering.  It's getting old, and doing grounds 
>is not simple - even though I have a few techniques for that. I've 
>seen the prices of PC milling machines coming down, but I thought 
>that I would try my hand at building one instead.  With my exposure 
>to 3D printers, and reading up on a few homebrew CNC machines and 
>plans, I believe that I can build one that can do through-hole and 
>simple SMT devices, down to about 10 mil or so traces/isolation 
>runs.  For smaller parts, I would put the parts on small commercial 
>chip carriers, and add those to the layout.  I don't need a huge 
>4x8ft mill, a smaller desktop unit would be fine. Has anyone built a 
>CNC milling machine that can SUCCESSFULLY do PC boards? If so, what 
>and how much?  Can it do double-sided (lining up both sides)?  I 
>plan to add many through-holes for vias between layers. 73, & Happy 
>New Year!! Terry, N4TLF 
>_______________________________________________ Tacos mailing list 
>Tacos at amrad.org https://lists.amrad.org/mailman/listinfo/tacos </x-flowed>