Thanks @bulgie. That was my thought, but good to get confirmation. I’ve never done a lug in bronze so we will see how it goes.
Trying to braze that in bronze is not going to be easy. The temperatures for using bronze are much higher than silver. The skill level is not for a beginner. Get another lug and make it fit right.
I may end up down that road. It’s just a standard 60 degree lug (made by allotec I think). Would another one be any better.
I was also thinking about brazing it with fillet pro but I’m all out. It seems like people are having a tough time sourcing more.
never done lugs and am an utter noob in general, but could you cut a slit in the top of the lug and close it up to get it tighter on the tube? it’s all getting brazed in anyway
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I could, however I have already done all the filing and shaping. In this case it got accent holes on the top. Photo is of the top lug but you get the idea.
I may just order another lug to see. I’m pretty tight on time for bike building so it is a bummer to lose the effort put into this lug.
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I’m sure you know what it is like to clean up after a silver braze. When you are not on your game or lack experience there are usually globs of silver to remove in order to make your shorelines look clean. The cleanup with bronze will be very difficult and you will most likely undercut the lugs and the tubes while trying to file away the globs bronze.
The lug you are trying to reuse can most certainly be done with bronze but not a good task for a first go. I would practice a few times before attempting it at the very least.
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Ok, I want to ask the big brains before I go nuclear and buy another lug.
Measuring as seen here with a gage pin. I can get a .019 pin to go partially into this side of the lug.
On the other side of the lug it is dead flush.
Top and bottom of the lug i can get between a .005 and .010 feeler gage depending on where I stick it.
Obviously not ideal but I’m wondering if this gap is more normal than I thought. Maybe I am ok with this amount of gap with 54% silver???
The material from my previous posts was a piece of round bar that was a few thou undersize.
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