I would just like to say

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My Old Landy said:
It is a lot nicer here today too :) I am eagerly waiting for the postman :D
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postman-pat.jpg
 
Stanleysteamer said:
That's a bummer.:(:(:(
does you do it in the microondes?
We do, it don't burn but it can splash it around a bit if you forgets what you is doin!:(
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Exploded last time I tried microwave

DanClarke said:
..that I am trying to modify some Sturmey Archer Drum-Braked bicycle hubs so that they can be driven by half-shafts (like a car).
Working out possible ways "how" to do it is giving me a headache. :)
Different internal spacers will need to be made on my lathe. :)
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Sounds very interesting, what you up to ? :)
 
landowner said:
Sounds very interesting, what you up to ? :)
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Tricycles (pushbike ones) normally only have one rear wheel driven because they have no differential, mine will have both rear wheels driven, the 2WD "diff" will allow for one wheel to go faster in turns without scrubbing the tyres.
Most bikes nowadays have disc brakes but I find them fiddly to set up and keep working properly, and so I want to use drum-brake hubs.
Now these types of hub are normally un-driven and just freewheel on a 12mm axle. I am trying to change it so that a 12mm half-shaft drives the hub through the backplate.
Essentially I am trying to create for a Delta tricycle a rear-wheel drive system that drives both rear wheels through half-shafts and uses standard and proven drum-hub brakes.
I can't find anyone else that has done it, so there is no one to go "copy" its all investigate, try, do. Which exercises the grey matter. :D
 
DanClarke said:
Tricycles (pushbike ones) normally only have one rear wheel driven because they have no differential, mine will have both rear wheels driven, the 2WD "diff" will allow for one wheel to go faster in turns without scrubbing the tyres.
Most bikes nowadays have disc brakes but I find them fiddly to set up and keep working properly, and so I want to use drum-brake hubs.
Now these types of hub are normally un-driven and just freewheel on a 12mm axle. I am trying to change it so that a 12mm half-shaft drives the hub through the backplate.
Essentially I am trying to create for a Delta tricycle a rear-wheel drive system that drives both rear wheels through half-shafts and uses standard and proven drum-hub brakes.
I can't find anyone else that has done it, so there is no one to go "copy" its all investigate, try, do. Which exercises the grey matter. :D
Click to expand...
You got me thinking now
I have a mobility scooter chain driven diff for my model truck (not adapted yet)
Maybe a freewheel cog could provide the needed slip in the drive on one side ? (had a think and that wont work)
 
derwendolly said:
I have just received a letter from the hospital which did investigative procedures for a suspected cancer on 4th APRIL informing me that all tests proved to be normal.
I was told I would get the results within 4 to 6 weeks so I suppose I should be grateful that they finally got around to give me the results 7 MONTHS and TWO weeks later.
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Good news all the same hey? :D
 
DanClarke said:
Tricycles (pushbike ones) normally only have one rear wheel driven because they have no differential, mine will have both rear wheels driven, the 2WD "diff" will allow for one wheel to go faster in turns without scrubbing the tyres.
Most bikes nowadays have disc brakes but I find them fiddly to set up and keep working properly, and so I want to use drum-brake hubs.
Now these types of hub are normally un-driven and just freewheel on a 12mm axle. I am trying to change it so that a 12mm half-shaft drives the hub through the backplate.
Essentially I am trying to create for a Delta tricycle a rear-wheel drive system that drives both rear wheels through half-shafts and uses standard and proven drum-hub brakes.
I can't find anyone else that has done it, so there is no one to go "copy" its all investigate, try, do. Which exercises the grey matter. :D
Click to expand...

Sturmey hubs alone makes my head ache.
Good luck with it! :)
 
Been busy fitting a noo back door to me garage today. Existing frame is slightly out of true, so it has taken a bit of careful adjustment to the hinges (fiddling). Had to cut the top hinge into the frame a bit deeper, and make a spacer to build the bottom hinge out a bit. Then had to grind a bit of the concrete off the floor as it was out of level. And a few mm trimmed from the closing edge for the final fit. Needs a tiny bit more grinding off the concrete to get it to close properly but it has started raining again. Managed to prime the planed edge - all other surface were primed n undercoated last weekend as preparation. So should be weather proof until it stops raining.
 
OK, I made a new spacer for one of the hubs and put together a very simplistic "Proof Of Concept" model of what I am trying to achieve.
The POC model includes:
  • an outer axle-tube
  • a 12mm bolt masquerading as an axle
  • Some 12x28x8 bearings
  • A modified external spacer to allow the hub's backplate to float free.
It seems to work in principle, turning the axle (in either direction) turns the hub shell in the same direction.
I guess I will need to do more to work out how to implement a drive-dog/drive pin affair.
 
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