Zenith701801-List Digest Archive
Tue 04/03/12 |
Total Messages Posted: 1 |
Today's Message Index:
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1. 10:20 AM - Re: Drill speed choice (Geoff Heap)
Message 1
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Time: 10:20:09 AM PST US
Subject: Re: Drill speed choice
From: "Geoff Heap" <stol10@comcast.net>
Hi Raymond. It's not that there's a downside to running that fast. There's just
no point to it. I've been a machinist all my life (so far) and I'm 62 so picking
a sheet metal airplane to build was a no brainer. I've made the whole thing
with regular cheap electric corded and cordless drills. Please dont waste your
money. A lot of the time you're going to want to run the drill pretty slow
anyway. Like for using reamers. 6000 rpm is for machining aluminum in a CNC mill.
To drill at 6000 rpm the drill needs to be moving through the aluminum at
20 to 30 inches per minute. You can't do that. You dont have the control. A machine
does. At that speed it will drill through a .025 sheet in .01 seconds. Id
rather not have anything in my hand thats turning at 6000 rpm. If you email
me I'll give you a shopping list of cheap tools for holemaking that will serve
you well. Good luckGeoff
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Dual controls. Dynon 180. Icom 210 Garmin 296. Becker transponder. Sigtronics intercom.
Electric flaperons.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=369963#369963
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