Adding the Top Tube - DIY Bike Frame Ep 8

This video shows the final part of the front triangle assembly for my new DIY fillet brazed bike frame. I show the process of mitering the top tube, and then I braze the top tube to the seat tube and head tube.
Hobby framebuilder. Video series of me building a new bike frame in my garage. This will be the 8th frame I've built, but my first CZcams video series. The new frame will be built up as a trail bike with a 150mm fork.
DIY Bike Frame
#HobbyFrameFab
Check out Paul Brodie's channel ‪@paulbrodie‬ for more framebuilding videos:
/ @paulbrodie
I'm a big fan of this playlist from Paul where he builds a Brodie Romax:
• Romax Build
Check out this playlist from BikeFarmer ‪@bkefrmr‬ where he builds a lugged steel adventure/touring frame:
• Bicycle Framebuilding

[@joell439]

Never gets old to see meticulous attention to the details pays off in the results 👍😎👍

[@ThriftyFramebuilder]

👍👍

[@levingamm5956]

Nice one!

[@ThriftyFramebuilder]

Thanks!

[@sprocketandwheel]

Great job. I like your mittering lathe set up..

[@ThriftyFramebuilder]

Thanks!

[@squeekywheel]

TIG welding aluminum is also an application that requires cleanliness, and most tutorials suggest cleaning with acetone. I wonder if that would be better than alcohol for cleaning before brazing as well. Thanks for the great videos - enjoying them a lot!

[@ThriftyFramebuilder]

👍👍 I’ve used acetone in the past as well as mineral spirits, but I recently started using isopropyl alcohol just for the fact that it seems less toxic/hazardous. I’ve heard people talk about developing an acetone sensitivity from repeated exposure.

[@squeekywheel]

@@ThriftyFramebuilder I wasn't aware of acetone being toxic - that's good to know.

[@ThriftyFramebuilder]

Almost everything is toxic in the right amount. 🍺🍺🍺
You also have to consider how you are exposed. Isopropyl is very toxic if you drink it, a few hundred milliliters will likely kill you. But at the same time, I’m not really concerned about holding a rag damp with isopropyl. I think the acetone thing is more like a developed allergy.

[@AJXOXO-vz1pn]

BikeCad is waaaaay to expensive. Is there some sort of free version?

[@ThriftyFramebuilder]

Absolutely! I used the free version for my first few frames. Go check out their website. While it isn’t cheap, if you are building frames the Pro (pay) version is definitely a worthwhile investment.

[@levingamm5956]

czcams.com/video/XemlmN-CWmM/video.htmlsi=SdjfnrRZt-AwQITq

[@ThriftyFramebuilder]

I’ve used Fusion 360, and unless you are already good with CAD, using BikeCAD will be significantly easier.