Homebrew PCBs

Hi,

On my A360 (www.accuratecnc.com), I'm using feed rate 40 in/m at @60000. May be 
in your case (@5400) you have to reduce it up to 4 in/m ! 

Regards



________________________________
From: designer_craig <cs6061@...>
To: Homebrew_PCBs@yahoogroups.com
Sent: Wed, June 30, 2010 10:11:46 AM
Subject: [Homebrew_PCBs] PCB drilling speed and feed rates

  

I just finished up my CNC quill drive conversion my Bridgeport and would
like to use it to drill boards. I have not found a reference to what 
speeds and feeds to use for drilling.

I am looking for the surface feet per minute and feed per turn numbers
for small carbide drills in FR-4. My 5400 RPM maximum going to be
well below the 30,000 to 60,000 RPM used by a real PCB drilling spindle
but it should still work fine if I use the correct feed rate.

Anyone got a reference for these parameters.

BP Quill Drive
<http://picasaweb.google.com/lh/photo/B-uAtxYUicys82cFdd5HYg?feat=directlink>

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