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naumuk(at)alltel.net
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 Posted: Wed May 02, 2007 2:24 pm Post subject: .062 bends/Dave's brake |
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All-
Had to make my upper nose strut bearing twice, and damned near trashed my Dave's brake. Mean 'ol mother physics.
I was worried about the blank shifting back, so put the long side of the piece under the hold-down angle. WRONG! Didn't pop the hinge rivets, but put a kink in the hinge. I can fix it without major difficulty.
When bending the heavy stuff, leave the long end out for additional leverage.
Bill Naumuk
HDS Fuse/Corvair
Townville, Pa
[quote][b]
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TxDave
Joined: 22 Jul 2006
Posts: 168
Location: Temple, TX
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| Posted: Wed May 02, 2007 8:34 pm Post subject: Re: .062 bends/Dave's brake |
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Bending anything up to and including .040 is not a problem. Trying to bend .063 is pushing it. Fortunately there aren't too many .063 parts to bend.
Dave Clay
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naumuk(at)alltel.net
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| Posted: Thu May 03, 2007 2:03 pm Post subject: .062 bends/Dave's brake |
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Dave-
The piece was small (Upper gear bearing) and I located the part next to
a hold-down bolt. What I was worried about was the part sliding through the
hold-down angle because it was relying on the one bolt. Turns out that
slipping wasn't a problem, leverage was. Too much to ask of the hinge when
you only have 20mm bend surface. Turn the part around to where you have
about 100mm, and no problem.
No way would you be able to bend a really large piece, but the second
time around I didn't do any damage to the hinge.
I have access to smack the bent part of the hinge in place without
taking the pin out again, so no big deal. If I don't screw up any more kit
parts, all I have left is maybe a couple of standard L angles. I figure it
this way, it cost me less than $20.00 to build the brake. The two parts I've
already made would have cost over $100 with shipping. I'm not complaining.
Bill Naumuk
HDS Fuse/Corvair
Townville, Pa
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ashontz
Joined: 27 Dec 2006
Posts: 723
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| Posted: Mon May 07, 2007 6:20 am Post subject: Re: .062 bends/Dave's brake |
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[quote="naumuk(at)alltel.net"]All-
Had to make my upper nose strut bearing twice, and damned near trashed my Dave's brake. Mean 'ol mother physics.
I was worried about the blank shifting back, so put the long side of the piece under the hold-down angle. WRONG! Didn't pop the hinge rivets, but put a kink in the hinge. I can fix it without major difficulty.
When bending the heavy stuff, leave the long end out for additional leverage.
Bill Naumuk
HDS Fuse/Corvair
Townville, Pa
Do the .063 bending in a shorter brake. I have a 48" brake (actually 47.5"), the Zenith design, and a 8'+ plus I designed. I can actually bend 6'+ of .040 in it with clamps in the center. I made my spar cap angles out of .040 (in two sections) in my big brake. Called for .032 but I didn't have any left so I made them out of .040.
do not archive
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