Cargo Bike Build, looking for feedback on design and brazing

Very cool technique! Thanks for showing it. That is pretty impressive how well it worked.

Did you preheat the headtube evenly all the way around? I’m no pro but I remember when I did my framebuilding course that was the most important part when getting things hot enough to braze.

Right! I was quite impressed

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I thought I did but this might be an area for improvement. I started with a very thin root pass (is this the right term?) to get an internal fillet. It’s possible it wasnt pre heated enough for this. I think it was well heated before I started building up the full thickness of the fillet
I’ll try doing a more even pre heat next time and see how it compares

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I’m slowly working away at the frame. I decided to use a gusset to help attach the cargo tubes.

I found this joint really challenging, maybe because it’s a lot of thick tubing, it was really hard to get things up to temperature so it took a long time.

The frame nearly done now and we’ve built a cute little segmented fork












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