Tubing Removal
06-19-07, 12:15 AM
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Tubing Removal
I recently decided that I needed a recumbent to make my life complete. Then I looked at my checkbook. I have found several good site on building your own. Signed up for a welding class at my local Jr. College. Both of my donor bikes have lugged frames. Can I remove the tubing from the lugs? I want to do this because one piece of tubing will look neater and more professional than splicing the tubes as in most of the sites I have looked at.
06-19-07, 07:42 AM
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If you can afford it your life will be made much , much easier by using new tubes. Here's a good place to buy aircraft tube and you can get it in any length you need............splicing not good.
Dave
https://www.aircraftspruce.com/catalo...tubing_un1.php
Dave
https://www.aircraftspruce.com/catalo...tubing_un1.php
06-19-07, 09:31 AM
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Any Ideas on which Recumbent you want to make?
Chris
Chris
06-19-07, 10:43 AM
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Originally Posted by ang1sgt
Any Ideas on which Recumbent you want to make?
Chris
Chris
06-20-07, 02:49 PM
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Not a task for the faint hearted or inexperienced. It can be done, but only if the frame is silver brazed - and even then, it's far too easy to spoil the frame. If you choose to try it, then cut the tube near the lug and grind-out the remaining tube with cutters or stone wheels.
Don't thumb your nose at spliced joints. If done right, they are strong, relatively easy to do and invisible. Both tubes should be the same wall thickness and the sleeve should be thinwall chromoly (.028"-.035"). The image below shows 1-1/4" diameter tubing, and 1-1/4" diameter sleeve which has been slit about 1/4" wide to permit telescopiing into the tubes. During assembly, make sure you orientate the sleeve's slit, approximately 90 degrees from the filler access holes. Once assembled, feed Harris Safety-Silv 56, 45 or 45T into the holes. An adaquate length of straight, 1" angle iron and a couple of hose clamps can be used as a jig while you tack the pieces together.
Originally Posted by LeakyDuck
I want to do this because one piece of tubing will look neater and more professional than splicing the tubes as in most of the sites I have looked at.
Last edited by PaPa; 06-20-07 at 03:52 PM.
06-21-07, 04:36 AM
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I wrote an article on frame repair here. It included removing tubes.
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History, photos and tech articles on "Dave's Bike Blog." 'dave moulton' Registry including a Picture Gallery https://www.davemoultonregistry.com/
06-21-07, 12:19 PM
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LeakyDuck...I've seen a few of those and they build up nice. You may want to search around for some of the Bent Groups and see what they have to say. Bentrideronline.com is a good one as well as https://www.recumbents.com/. Both have good resources and links to many folks that have built up frames.
Good Luck!
Chris
Good Luck!
Chris
