Today's Message Index:
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     1. 05:27 AM - Re: Drill speed choice (Geoff Heap)
     2. 05:32 AM - Re: Drill speed choice (Geoff Heap)
 
 
 

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Time: 
05:27:07 AM PST US
Subject: 
Re: Drill speed choice
From: 
"Geoff Heap" <stol10@comcast.net>
      
      
      Hi Raymond. The Littlemachineshop info you are referencing is useless for building
      an aluminum airplane. You need to listen to your peers. I repeat here my answer
      to your same post on the 701/801 site.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     Lose this point
      of view Raymond.
      
      --------
      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=370596#370596
      
      

Message 2


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Time: 
05:32:59 AM PST US
Subject: 
Re: Drill speed choice
From: 
"Geoff Heap" <stol10@comcast.net>
      
      
      I forgot to mention. At 6000 rpm with just hand pressure, instead of making aluminum
      chips you'll make dust. that will wear the drill out fast....Geoff
      
      --------
      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=370597#370597
      
      








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