1/20th Scale Traction Engine

Good progress, amazing stuff.

If you take a front-on view of the Steam Wagon next to your engine I am sure we will see the difference in proportions, especially if you take the body off the Wagon.

Nice work Nigel ! Bassette Lowke did a set of drawings in1.5 scale in the late 40s, I have a set. If they would help PM me. They are very detailed. Noel

that looks great.

It is very much a first-off. There has to be a good bit of process development and "does it look right". In such a case three attempts is good. many people need three attempts to make a part with full instructions and published tips.

Looks great, amazing actually for something so small.

A row of rivets and a scored line will disguise the common plate.

Sorry - no idea about pumps.

Looking good

H

Always a good idea to check the proportions...and generally admire.

Great work so far. Keep it up.

Steve.

Fine work there!

Aluminium inserts for PB - I'll try to remember that.

That flywheel's spot-on.

I don't think you've had to lift the motion excessively. The top of the firebox is a bit on the thick side but not that much above the barrel, and the cylinder saddle will compensate for some of its thickness anyway.

I may be mistaken but I think the engine in the photo behind yours is a single-crank compound. Are you following that or making a single-cylinder engine? If the latter your cylinder-block will be proportionately a little bit less tall.

I don't suppose you are the first to be caught by things like someone putting an axle in the way of the fire-door. They would! Many traction-engines have either the axle or a motion-shaft not actually in its way but above it, and some seemed to have been designed to make access right awkward. At least yours is below the door.

I've certainly fallen into my own design traps many times. There are plenty of bits on my steam-wagon that are second, third... mods to overcome mistakes I had not foreseen maybe 10 weeks - and often years - beforehand.

great progress.

I would recess the top of the firebox. Is there boiler under it at that point?

Starting to take shape now, really looks the part 👍