annealing copper

Copper Boiler End Plate

November 23, 2019 Nigel 0

Making a copper boiler end plate with a mild steel pattern and firstly hammering the outer edge over. I made a mild steel pattern for the copper end plates to be formed over. The final [more…]

Bellcrank bracket

Transitional Engine Eccentric Bracket

November 16, 2019 Nigel 0

The transitional engine eccentric bracket supports the pivot for a bellcrank midway along the pushrod. This is the part in question, machined from mild steel with phosphor bronze inserts. As you can see, there were [more…]

countersinking tool

Countersink Extension

June 16, 2019 Nigel 0

The poppet valve crankcase has been bugging me and I wanted to fix the brackets from inside the crankcase with countersunk caphead bolts. There just wasn’t room or the right angle to get a bit [more…]

crankshaft

Crankshaft – Poppet Valve Single

June 2, 2019 Nigel 0

The crankshaft for the poppet valve single cylinder engine has been machined from mild steel and includes timing gear machined directly on the shaft.  This started with a piece of hexagonal mild steel, why hexagonal? [more…]