heres a bike frame building jig i put together today.
its a combination push/motor bike jig as i can see m/bikes in youngest boys future.
its made so i can fit crank and head tube using bushes i listed on previous post then build frame from there.
it all packs away flat.
stuck ready made frame in it just check it out.
aready thought of one mod i need to make.
am sure it will evolve as i use it more.