The first of the traction motor units is substantially complete! There's been a bit of trial and error whilst determining what diameter shafts to use for the 1st stage gear. 2mm was too hard to get into the gears square, despite being designed for that diameter shaft.
I've used 1.9mm diamter tubing for the first, with the intermediate gears glued onto the shaft with industrial adhesive, which is supposed to withstand pressures of 3,500psi It's glued everything nice and solid - I've tried turning the gears on their shafts and I can't shift them. The final drive gears will be cross drilled and pinned to the axles to make sure they're totally secure.
The pictures give a good idea of how the finished assembly is going to look - the wheels are set roughly to the correct back to back measurement (31.30mm).
1 down, 5 to go!
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