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  #1  
Old 11-13-2006, 09:23 PM
fehdxl fehdxl is offline
 
Join Date: Mar 2005
Location: Bellevue, NE
Posts: 686
Default Tip: Countersinking technique

Hi gang, I thought this picture might be worth sharing...it's my simple solution of how to easily counter-sink those trailing edges. Straight down on the table doesn't work becuase the c-sink cage hits the table and therefore is not at the correct angle. Holding the trailing edge on the edge of the workbench was too much of a pain. Holding both the drill and trailing edge above the table got to be too tiring for the arms. This way seemed to work really well. Anyway, thanks for reading. -Jim
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  #2  
Old 11-13-2006, 10:46 PM
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JoeG JoeG is offline
 
Join Date: Dec 2005
Location: Fort Worth, Texas
Posts: 146
Default Hmmm

Now that's the finest example of southern engineering I've seen in quite a while

Hey, whatever works!
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  #3  
Old 11-14-2006, 02:31 PM
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Dave Cole Dave Cole is offline
 
Join Date: Jan 2005
Location: Roanoke, VA
Posts: 306
Default Countersink in drill press

Or, you can mount the countersink in a drill press, swing the table out of the way, hold the wedge horizontally in you hands, and lift it upward against the countersink cage.
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Started SB April 2004
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  #4  
Old 11-14-2006, 06:34 PM
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IowaRV9Dreamer IowaRV9Dreamer is offline
 
Join Date: Jan 2005
Location: Marion IA
Posts: 1,095
Exclamation Drill press caution...

I went the drill press route, but I didn't slow it down enough. With the drill press always on while countersinking a bunch of holes, and stopping the cage from spinning (so it wouldn't mar the work) - the grease inside the countersink cage overheated.

Pretty messy when it leaked out. I had to replace the grease. Next time, much (much much) slower! Good luck!
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Building RV-9A N149DG (slider, IO-320, IFR)
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There is no sport equal to that which aviators enjoy while being carried through the air on great white wings." Wilbur Wright, 1905
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  #5  
Old 11-14-2006, 10:51 PM
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JoeG JoeG is offline
 
Join Date: Dec 2005
Location: Fort Worth, Texas
Posts: 146
Default

I actually did my rudder AEX by holding it in my left hand and drilling with the right. Keep a finger on either side of the hole being countersunk and there is no flexure to worry about. Worked like a dream. Just don't get in a rush.
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  #6  
Old 05-05-2007, 08:38 PM
Fedico94 Fedico94 is offline
 
Join Date: Jan 2007
Location: Hudson, IA
Posts: 52
Default Countersinking AEX

I routed a squared side trough 1/4" wide in the table top and then set the "V" edge into the top so the table edge undercut the top of the V and then used a small clamp to hold the trailing edge of the AEX to the table. This gave a nearly flat surface to countersink into. I notice that chatter can occur with or without the single hole countersinks when I did the reverse side that I had previously countersunk
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  #7  
Old 05-05-2007, 09:21 PM
RScott RScott is offline
 
Join Date: Aug 2005
Location: Estacada, OR
Posts: 787
Default

I placed my TE's at the edge of the table to match drill. Then to C/S the wedge, I just clecoed it to the table. The holes in the table kept the C/S from wiggling around in the hole; it went fast and came out nice. Simple.
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