some prototype boards - CNCzone.com-The Largest Machinist Community on the net!

kn6za · #1 08-03-2009, 06:52 PM

Some boards I have been working on.

designed with eagle by cadsoft
gcode generated by pcb-gcode :Thanks to John Johnson for the software
www.drewtronics.net 60deg isolation router - shameless plug!
Home built milling machine

Nice to be able to make up a few prototypes this quickly.

Eurisko · #2 08-03-2009, 07:56 PM

Very nice work.

I've never tried pcb milling, what depth of cut did you use?

kn6za · #3 08-03-2009, 08:56 PM

Thanks,

Depth of cut was between .0018 and .0022 inch. I cut these just deep enough to get through the copper. I don't like cutting into the fr4 any farther than necessary.

mcphill · #4 08-03-2009, 09:27 PM

Nice work! VERY clean traces/edges - jealous!

Jay C · #5 08-04-2009, 12:53 AM

Looks great Andrew. Bet they took a while to rubout using a 60-degree bit (ask me how I know

)

kn6za · #6 08-04-2009, 09:01 AM

Thanks,

Yes, its not as fast as my laser printer, thats for sure! I ran these with a .0015" step over and tool diameter set to .005"

mcphill · #7 08-04-2009, 10:29 AM

You can speed that WAY up by changing bits. Cut the traces with the V-bit, with a decent offset, then switch to something like a 1/8" bit to clear out the "field".

kn6za · #8 08-04-2009, 01:23 PM

mcphill,

Good "point"! - Pun intended

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