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11-22-2013, 12:15 PM
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Join Date: Aug 2008
Location: Leesburg, va
Posts: 213
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Rolling steel tube
Anyone know where I can get some 1" 4130 rolled? I need to modify my sticks in my RV-10 and need a piece of steel tube rolled so it has a radius to it to match the existing stick bend. Tried about 20 local places with no luck.
thanks,
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11-22-2013, 12:37 PM
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Join Date: Mar 2013
Location: Flathead Lake Montana - 8S1
Posts: 334
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Try a local hot rod shop that does mandrel tube bending. If they have a mandrel that matches the ID of your DOM 4130 it should be easy and relatively inexpensive.
__________________
'83 LongEZ - N888EZ 3,671 hours
'89 LimoEZ - N26EZ 686 hours (sold)
A couple of Glasairs and a Lancair 320...
Next: a RV14 need something to build
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11-22-2013, 12:53 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,420
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Try Russ, he makes stuff for Vans----maybe the sticks??
http://www.vansairforce.com/community/member.php?u=2228
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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11-22-2013, 01:53 PM
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Join Date: May 2010
Location: Denver
Posts: 564
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If this is to increase the clearance between your stick and the bottom of the panel, some builders have had muffler shops bend a smaller radius in the stick. Others have used the HF bending kit to do the same.
Jim Berry
RV-10
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11-22-2013, 03:02 PM
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Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 2,589
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you have to be carefull of the dies you use, and how much of a bend you make. You can kink the tube---which is bad.
__________________
Tom Swearengen, TS Flightlines LLC, AS Flightlines
Joint Venture with Aircraft Specialty
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
Ridgeland, SC
www.tsflightlines.com, www.asflightlines.com
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11-22-2013, 03:16 PM
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Join Date: Oct 2005
Location: Vancouver, WA USA
Posts: 908
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Quote:
Originally Posted by Mike S
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He asked, I could not help him, don't have a way to roll the tubing.
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11-22-2013, 03:52 PM
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Join Date: Mar 2013
Location: Flathead Lake Montana - 8S1
Posts: 334
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Quote:
Originally Posted by TS Flightlines
you have to be careful of the dies you use, and how much of a bend you make. You can kink the tube---which is bad.
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If a good ball mandrel is used bends at r=1.5D can be easily made, even in thin wall tubing. If you can't find a good horizontal bender with ball mandrel tooling see if you can find someone with a Pines 3T vertical compression bender; the wing dies on a 3T can do an okay job of simulating a "rolled" curve.
__________________
'83 LongEZ - N888EZ 3,671 hours
'89 LimoEZ - N26EZ 686 hours (sold)
A couple of Glasairs and a Lancair 320...
Next: a RV14 need something to build
Last edited by deek : 11-22-2013 at 05:08 PM.
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11-23-2013, 05:51 PM
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Join Date: Mar 2006
Location: Kyle, TX
Posts: 566
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It seems that one might be able to mitigate the tendency of a tube to kink while bending it by first filling it with sand.  I've never bent tube before though.... 
__________________
Fred Magare
GySgt, USMC (Ret.)
PP-ASEL, A&P
Frederic.magare "at" gmail.com
 RV-9A Firewall Forward
[Engine purchased]
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11-24-2013, 08:11 AM
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Join Date: Jan 2005
Location: Saskatoon,Saskatchewan,Canada
Posts: 291
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Bending 4130
Unless you have the proper mandrels don't even try to bend this stuff.....it will kink no matter how careful you are.....that's been my experience anyway...
__________________
Marc DeGirolamo
Canadian..Rv-4 Flying
VAF # 144
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11-24-2013, 08:19 AM
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Join Date: Jan 2005
Location: Saskatoon,Saskatchewan,Canada
Posts: 291
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Nope wont work
Quote:
Originally Posted by FredMagare
It seems that one might be able to mitigate the tendency of a tube to kink while bending it by first filling it with sand.  I've never bent tube before though.... 
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I tried that..... Even welded a bolt onto one end to pack the sand......result 'kink'.  . This procedure does work with mild steel pipe though.
Maybe for a bend of a few degrees it would turn out OK( you are just likely not seeing the deformation) ??
Even when heated there is still a lot of strength (resistance) to overcome when bending.....and the sand deforms too easily.....thats my theory anyway!!??
__________________
Marc DeGirolamo
Canadian..Rv-4 Flying
VAF # 144
Last edited by Marc DeGirolamo : 11-24-2013 at 08:20 AM.
Reason: Remove unwanted letter
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