You didn't say what size cutter you're using, but Machinery's handbook says that drilling 1010 carbon
steel requires a drilling speed of ~90 ft./min. By
comparison 60nn aluminum requires 350 ft./min.
If your burr had a diameter of 1", it would be cutting
3.14" per revolution. The smaller the cutter, the
more RPM you'll need for the optimal speed.
Dale R.
>
> From: "kevin lane" <n3773@comcast.net>
> Date: 2004/02/23 Mon PM 05:31:12 EST
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Subject: [FlyRotary] die grinders
>
> despite already building a -6a I still have problems with the die grinder. I have yet to figure out what makes it jump around and what makes it cut nicely. I am using the very open tooth die that won't clog up when cutting AL. what is the correct feed direction, speed, etc... I should be trying?
> Kevin Lane Portland, OR
> e-mail-> n3773@comcast.net
> web-> http://home.comcast.net/~n3773
> (browse w/ internet explorer)
>
despite already building a -6a I still have
problems with the die grinder. I have yet to figure out what makes it jump
around and what makes it cut nicely. I am using the very open tooth die
that won't clog up when cutting AL. what is the correct feed direction,
speed, etc... I should be trying?
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