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The differential has taken some time to get to even operate. However, after making some shims to space the crown wheels correctly I have something that operates.
https://youtu.be/NzCnPJZBq4o
I might still re-make this, but for now I know I can get something that works as a differential. In practice it will not actually see that much work and so it is probably ok.
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I thought this little differential warranted a bit more of a video around it's assembly, the shims and me "running it in" at a stupid speed....
https://youtu.be/O7qYsHtSlTM
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2 Attachment(s)
Just machined a solid phosphor bronze rear axle for the Burrell. OK, this isn’t a solid rear axle like a 1960’s muscle car. This is an actual solid round phosphor bronze bar that supports both rear wheels to rotate independently and then the differential sits on a separate layshaft.
Attachment 42990
and then just so that you get an idea of the scale
Attachment 42991
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Just been silver soldering the parts for the rear hub caps and thought I would share the process of using easy flo paste, very easy to get great results on small parts
https://youtu.be/KoZwr0B4y54
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I've had a bit of a break from building this, however, in the last few days I've sorted the rear axle and the rear hub caps. Now I think it is taking shape. On my latest status page of the Burrell Traction Engine there are even more images.
https://youtu.be/QSaq5TVI9U0
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2 Attachment(s)
Finally the Burrell is back on the workbench and I've made the connecting rod from 3 parts
Here with the phosphor bronze big end in place. Hopefully the matchstick gives you an idea of scale.
Attachment 44117
The conrod was assembled from 3 parts
Attachment 44118
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1 Attachment(s)
Spent a few hours making the eccentric pushrods and then testing them on a drill:
Attachment 44146
The two eccentrics gives the ability to run the steam engine in forward and reverse. I need to make up the slider, crank and handle etc
https://youtu.be/PeUzvlVP3us
They need a bit more fettling and finishing of the eccentric pushrods, but I'm happy for now.
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1 Attachment(s)
The differential sits on the layshaft and this takes a bit of thinking about. Hopefully the following image helps.
Attachment 44281
The drive and neutral is achieved by sliding the crankshaft gear out of mesh.
https://youtu.be/2C4Lin8xcp4
Lots more to do, but gradually getting closer to completion.