Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Quote from: classixs on April 28, 2021, 12:25:25 pm

D3/D4(New)    6mm x 12mm

D4(Old)/D5/D6 7mm x 16mm

I knew Jan would know!

I would like to modify a new D4 but most are sold out here and there rare ones you find are over priced

I knew Jan would know also 😊👍, I had in my mind to modify one of the new D4's as well Ben , but got sidetracked with a time consuming D32.
I believe Mini steam still has some left , but honestly, unless you just "must" modify a D4 , anything else would be time better spent on modifying imho.