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poneill(at)irealms.com Guest
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Posted: Tue Sep 25, 2007 3:46 am Post subject: QB Wings: Page 16-2 Step 3 |
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I'm still working through double checking all the QB Wings+Fuse plan steps
and encountered an issue with one of the uncompleted wing steps.
Page 16-2 Step 3 where you #19 drill the center nut plate holes for the wing
root fairing attach. The center holes have not been drilled, so I am
drilling them. The problem is that there are 3 layers of aluminum already
riveted together which must be drilled through: rib, wing walk doubler, and
top skin. When drilling out the center hole, I am getting bur/chip
production between the layers.
I'm using a #19 jobber bit and going slow, but I am not able to avoid
separation of the layers due to chips. It's too tight to use a chip chaser
without damaging the skins. I was able to clean out the first two and then
stopped to research before proceeding.
Was this step completed for any others with QB wings or is this a standard
task for the builder to complete?
Any suggestions for avoiding the burrs/chips in between the layers while
drilling?
Best Regards,
Patrick 40715
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ScooterF15
Joined: 19 Jun 2006 Posts: 136
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Posted: Tue Sep 25, 2007 5:49 am Post subject: QB Wings: Page 16-2 Step 3 |
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Patrick,
I had the same issue with my QB kit, although, I don't have any suggestions for you. Just do the best you can. It is certainly a good idea to check every step in the plans to make sure it was done and done correctly. I spent probably a week checking/fixing stuff before actually starting work. I found it quite disturbing that they failed to drill the center holes for almost every single nut plate installed in the QB fuse. That makes it pretty hard to drill and properly debur those holes (especially when there are multiple layers of aluminum). Good luck.
-Jim
40134
In a message dated 9/25/2007 7:47:50 A.M. Eastern Daylight Time, poneill(at)irealms.com writes:
Quote: | --> RV10-List message posted by: "Patrick ONeill" <poneill(at)irealms.com>
I'm still working through double checking all the QB Wings+Fuse plan steps
and encountered an issue with one of the uncompleted wing steps.
Page 16-2 Step 3 where you #19 drill the center nut plate holes for the wing
root fairing attach. The center holes have not been drilled, so I am
drilling them. The problem is that there are 3 layers of aluminum already
riveted together which must be drilled through: rib, wing walk doubler, and
top skin. When drilling out the center hole, I am getting bur/chip
production between the layers.
I'm using a #19 jobber bit and going slow, but I am not able to avoid
separation of the layers due to chips. It's too tight to use a chip chaser
without damaging the skins. I was able to clean out the first two and then
stopped to research before proceeding.
Was this step completed for any others with QB wings or is this a standard
task for the builder to complete?
Any suggestions for avoiding the burrs/chips in between the layers while
drilling?
Best Regards,
Patrick 40715 |
Jim "Scooter" McGrew
http://www.mit.edu/~jsmcgrew
See what's new at AOL.com and .
[quote][b]
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jesse(at)saintaviation.co Guest
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Posted: Tue Sep 25, 2007 7:07 am Post subject: QB Wings: Page 16-2 Step 3 |
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If you use a couple of cleco clamps to hold the skins together, then run a #40 bit first, then #30 and then go up to #19, that should help a lot on the burrs. The cleco clamps should do a fairly good job of holding the skins together. Also, if you just put a little bit of pressure and let the bit do the work, the skins will not be separated as much while drilling.
Jesse Saint
Saint Aviation, Inc.
jesse(at)saintaviation.com (jesse(at)saintaviation.com)
www.saintaviation.com
Cell: 352-427-0285
Fax: 815-377-3694
From: JSMcGrew(at)aol.com [mailto:JSMcGrew(at)aol.com]
Sent: Tuesday, September 25, 2007 9:48 AM
To: rv10-list(at)matronics.com
Subject: Re: QB Wings: Page 16-2 Step 3
Patrick,
I had the same issue with my QB kit, although, I don't have any suggestions for you. Just do the best you can. It is certainly a good idea to check every step in the plans to make sure it was done and done correctly. I spent probably a week checking/fixing stuff before actually starting work. I found it quite disturbing that they failed to drill the center holes for almost every single nut plate installed in the QB fuse. That makes it pretty hard to drill and properly debur those holes (especially when there are multiple layers of aluminum). Good luck.
-Jim
40134
In a message dated 9/25/2007 7:47:50 A.M. Eastern Daylight Time, poneill(at)irealms.com writes:
Quote: |
--> RV10-List message posted by: "Patrick ONeill" <poneill(at)irealms.com>
I'm still working through double checking all the QB Wings+Fuse plan steps
and encountered an issue with one of the uncompleted wing steps.
Page 16-2 Step 3 where you #19 drill the center nut plate holes for the wing
root fairing attach. The center holes have not been drilled, so I am
drilling them. The problem is that there are 3 layers of aluminum already
riveted together which must be drilled through: rib, wing walk doubler, and
top skin. When drilling out the center hole, I am getting bur/chip
production between the layers.
I'm using a #19 jobber bit and going slow, but I am not able to avoid
separation of the layers due to chips. It's too tight to use a chip chaser
without damaging the skins. I was able to clean out the first two and then
stopped to research before proceeding.
Was this step completed for any others with QB wings or is this a standard
task for the builder to complete?
Any suggestions for avoiding the burrs/chips in between the layers while
drilling?
Best Regards,
Patrick 40715 |
Jim "Scooter" McGrew
http://www.mit.edu/~jsmcgrew
See what's new at AOL.com and .
[quote] [b]
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Bill Reining
Joined: 13 Aug 2007 Posts: 13 Location: Oakland, California
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Posted: Tue Sep 25, 2007 8:57 am Post subject: Re: QB Wings: Page 16-2 Step 3 |
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Be careful, there is a gotcha here. One of the nutplates is different, such that the screw hole is on the side, rather than the middle. The plans are correct. See Tim Olsen's comments in his gotchas section here: http://www.myrv10.com/tips/gotchas.html
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_________________ Bill (and Jon) Reining
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VHMUM(at)bigpond.com Guest
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Posted: Tue Sep 25, 2007 12:35 pm Post subject: QB Wings: Page 16-2 Step 3 |
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Use a step drill to just under 19 and then 19 drill and then it will be
perfect
Chris
---
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