Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Framebuilders Thinking about a custom frame? Lugged vs Fillet Brazed. Different Frame materials? Newvex or Pacenti Lugs? why get a custom Road, Mountain, or Track Frame? Got a question about framebuilding? Lets discuss framebuilding at it's finest.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 06-19-07, 12:15 AM   #1
LeakyDuck
Junior Member
Thread Starter
 
Join Date: Jun 2007
Bikes:
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
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.
LeakyDuck is offline   Reply With Quote
Old 06-19-07, 07:42 AM   #2
Dave Kirk 
Senior Member
 
Join Date: Sep 2006
Location: Bozeman MT
Bikes: Kirk
Posts: 200
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
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

http://www.aircraftspruce.com/catalo...tubing_un1.php
Dave Kirk is offline   Reply With Quote
Old 06-19-07, 09:31 AM   #3
ang1sgt
Senior Member
 
Join Date: Apr 2007
Location: Chili, NY
Bikes: 88 Fisher Gemini tandem, 92 Trek 970, 07 Nashbar Frame, 08 Gary Fisher Paragon
Posts: 733
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Any Ideas on which Recumbent you want to make?

Chris
ang1sgt is offline   Reply With Quote
Old 06-19-07, 10:43 AM   #4
LeakyDuck
Junior Member
Thread Starter
 
Join Date: Jun 2007
Bikes:
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by ang1sgt
Any Ideas on which Recumbent you want to make?

Chris
I started out looking to build the Easy Tour clone - then I acquired A Centurian Mixte with 24' wheels. If I cut, extend and graft in a bottom bracket from an old Royce Union. minimum cutting and welding. That is why I want to pull the old tubing out of the lugs if I can.
LeakyDuck is offline   Reply With Quote
Old 06-20-07, 02:49 PM   #5
PaPa
Senior Member
 
PaPa's Avatar
 
Join Date: May 2003
Location: Idaho
Bikes:
Posts: 493
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
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.

Quote:
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.
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.
Attached Images
File Type: jpg Splice02.jpg (46.4 KB, 28 views)

Last edited by PaPa; 06-20-07 at 03:52 PM.
PaPa is offline   Reply With Quote
Old 06-21-07, 04:36 AM   #6
Dave Moulton
ex frame builder
 
Join Date: Aug 2004
Bikes:
Posts: 519
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I wrote an article on frame repair here. It included removing tubes.
__________________
History, photos and tech articles on "Dave's Bike Blog." 'dave moulton' Registry including a Picture Gallery http://www.davemoultonregistry.com/
Dave Moulton is offline   Reply With Quote
Old 06-21-07, 12:19 PM   #7
ang1sgt
Senior Member
 
Join Date: Apr 2007
Location: Chili, NY
Bikes: 88 Fisher Gemini tandem, 92 Trek 970, 07 Nashbar Frame, 08 Gary Fisher Paragon
Posts: 733
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
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 http://www.recumbents.com/. Both have good resources and links to many folks that have built up frames.

Good Luck!

Chris
ang1sgt is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 11:57 AM.