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Re: drill pcb

2016-02-23 by craigl2@...

A feed rate of 29 in./min. equates to drilling through a PCB in a little over 1/10 of a second. Are you really drilling through them this quickly?

Craig

---In Homebrew_PCBs@yahoogroups.com, <mikewhy@...> wrote :

Aside from runout, feeds and speeds can be the culprit. FSWizard Pro gives the following for a 0.03" 2-flute, uncoated carbide drill in FR4.

RPM 20k
SFM 150 ft/min
Feed rate: 29 in/min
........

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