This is a housing for a 1/12 scale Hewland gearbox to mate with an engine I'm making.
This is my first attempt at machining aluminium. I've drilled and tapped it in the past but that's it.
I really disliked the stuff and thought it was the Devil's metal but I wanted to keep this light as it's hanging off the rear of the engine so I bit the bullet (billet?).
It all went so much better than expected and I got a great finish.
I've rubbed down flat external areas but all curved and internal bits are straight from the lathe. It tapped nicely as well with a drop of WD40 which was just as well as I had 33 hole to do, nearly all M1.2.
It was made from a scrap of 1/12" x 5/8" bar 30mm long. It weighed 52g originally but it is 10.6g now.
I've just got to make a few more parts then I can drop in my differential.
Steve
