A Pair of Rear Wheels

rear wheel rim blanks being machined

A pair of rear wheels for my 1/20th scale traction engine.

This all started with me machining the mild steel rim blanks from 4 inch diameter round 1 inch thick disc.

The machining required in this first stage was quite significant as I was removing a lot of material.

close up of treads being machined

The treads took some time to machine and to get right. The 7 degree angle was difficult to replicate on the other wheel, took me two goes to achieve.

The resultant pair of treaded rims did in the end feel like an achievement.

final pair of rear wheel rims
The pair of treaded rims
traction engine rear hub

The hubs were rather fun to make as they gave me a challenge. How do you align index machining between the two faces of the hub? The hole is a give away to how this problem was solved.

This mental challenge with manual machining is what I enjoy most about this hobby.

32 spokes
A handful of 32 spokes.
part built rear wheel rim

Assembling the wheels was very satisfying as the wheel takes shape and strength. This all relates to the design of the spoke wheel and the number of spokes.

The spokes were fixed to the rim with 8BA bolts that were then riveted over. I made a simple rivet punch using silver steel and then hardening.

I now have a pair of rear wheels for the 1/20th scale Burrell.

3 thoughts on “A Pair of Rear Wheels”

  1. Hi great work, I am also new at building models, I am very interested in building a model Steam Traction Engine, but having problems in obtaining Plans, Very interested in building a much simpler , T/Engine……………. can you recommend one for me, I have surfed the net finding many models , but No plans , Have contacted a few model shops , but they want you to by the Kit or do not answer my emails.
    Being a ex-Toolmaker , and Draftsman, with 3 d experience, now retired , I am very interested in building one, Looking for a small T/E , around 6 inches long, plus minus , maybe the first one I will use Pulleys, Have access to a workshop, so no problems there, Member of the Mens shed, Brisbane.
    Can you help . many thank MIKE


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