did a little more on the grinder,
I have shortened the collars on the sprockets to get them in closer to the head, and it should work better closer together.
and of course I have painted it before its finished, made a few brass brackets to hold wiring but a few more to do yet.
I think I will weld sprockets on and bore a hole through the sprockets so at a later date I can just put a shaft into the hole and add another set of sprockets if I need to.
pictures
cheers andy