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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.

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Old 07-15-11, 11:25 PM   #1
fixedgear80
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Frame Jig

How easy or hard is it to make a frame jig? What are the major components?
Photos or Websites welcome.
I have plenty of wood/lumbar and a machine shop at my disposal.

Thanks
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Old 07-16-11, 07:27 AM   #2
unterhausen
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the best source of reasonably affordable frame jigs is instructables.com

There are other designs by the same person that designed the jig in the link
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Old 07-17-11, 09:22 PM   #3
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Anyone know if it's possible (or advisable) to use something like the Bringheli frame alignment table for tacking up the main triangle? I feel like it would allow me to tack the downtube properly aligned, then tack the seat tube, and from there I could extrapolate a properly aligned head and top tube? At $800 it's less expensive than all of the other commercial options I've seen...

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Old 07-17-11, 10:29 PM   #4
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yes, people use alignment tables to tack the frame together. You would need some fixturing. Alex Meade makes some frame blocks that would work
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Old 07-18-11, 08:15 AM   #5
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My old frame builder doesnt use a jig but what he did was put the frame in the table and start aligning the frame before and after brazing.

With the fork the same thing.
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Old 07-18-11, 11:13 AM   #6
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If the frame is a one-off, an inexpensive jig can be made of 3/4" plywood and V blocks. I believe this jig was originally posted by Glenn Thompson of Daltex Custom Bicycles in Dallas years before he became a professional framebuilder. I saved the photos years ago from a post of his thinking I might try using something like this (long before buying my Bringheli jig). You have to be careful with the torch; plywood burns.





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