Re: CNC drilling

Do a google search for "feed rate chart drilling" and you will come up
with lots of information. Here is one site I found:

http://www.desktopcnc.com/drill/optimize.htm

I converted my Bridgeport mill to CNC. A few message back I posted a
video of a project I was working on where I drilled and tapped over 100
holes in a 1" thick aluminum plate, all under CNC.

I posted a video at google here:
http://tinyurl.com/yxhpk5

Vince

>
> I just finished a new Jet mill conversion. In the past I have always
> been afraid to drill under CNC control- Ive let the program single

step

> to location, then I operate the quill by hand.
>
> What feed rates are used for CNC drilling? Do you calculate chip load
> like you would for an end-mill? What is a reasonable chip load for a
> drill? I suppose that varies by drill diameter?
>
> ron ginger
>