Hi y'all from Australia.....
I've been lurking and loitering on here for a while now, learned a lot, so maybe now time to post something.
Some years ago I did a Robbe U47, my first sub. Probably not the best choice, but, hey, had to have a U Boat. Replaced a lot of it, one of those beautiful etch brass decks, conning tower from Accurate Armour....a lot of resin to be ground out to make that work.
Then converted it use a Engel piston tank. As a working model it was never much good. It was a cut up of the Robbe wtc piston tank filled from the rear, so sub always went down stern first....overpressure, huge turning circle, not much space for adequate batteries, direct drive...many shortcomings.
So, new project....Build a new wtc for it.
Through my work I use cad daily. This has extended to using a laser cutter to make parts. Signwriters often have them now to cut out acrylic lettering. Perfect.
I've built all the parts as 3d models and designed a new wtc to address the problems. The set of parts have been done and redone a few times to get the fit right. Now I have what looks pretty much like a final set:
For those familiar with the Robbe model....the bulkheads sit on a standard plastruct section which sits over the beads on the bottom of the tube. All these pieces are held apart on threaded rods.
Decided to post it as a build here....will keep me at it!
CNC, lasering is a fantastic process. I could never make it all by hand. Worst thing about it is the acrylic cement. Fumes awful....never thought I'd wind up making model parts dressed like the guy in Breaking Bad....
“The difference between genius and stupidity is that genius has its limits.” ~ Albert Einstein.