That's a very nice job you've done there, you can be proud of that!
I made mine in ally a few years ago all on the lathe, slow work but well worth the effort.
Thanks! I'm really happy with the result and I always like the idea that I can use a machine to repair itself. Granted not everyone has a milling attachment for their lathe, but without a mill I was still able to make a new gearbox that will probably outlast the rest of the machine.