Winter project....Wooden derailleur

[elPedro666]

Here's a pic:

Except we're gonna have REAL wood mechs! Yeah! In your FACE, sram!!! :twisted:

Incidentally, if anyone has a spare one of these...?

 

[joe careless]

i have seen that type of wood made into a half shaft for a bedford lorry, it works.

 

[Koupe]

i have seen that type of wood made into a half shaft for a bedford lorry, it works.

O/T, but I'd love to know the circumstances behind that


* Loud THUNK followed by a halt on the verge *
"Sounds like we've lost a half-shaft"
"OK, I'd best start walking to the nearest phonebox"
"Nah, don't bother with that - pass me a 4-foot length of African Blackwood from the back, a saw and a ****ing big file. Proper job"

 

[bm0p700f]

This is a fab idea.

 

[joe careless]

i have seen that type of wood made into a half shaft for a bedford lorry, it works.

O/T, but I'd love to know the circumstances behind that


* Loud THUNK followed by a halt on the verge *
"Sounds like we've lost a half-shaft"
"OK, I'd best start walking to the nearest phonebox"
"Nah, don't bother with that - pass me a 4-foot length of African Blackwood from the back, a saw and a ****ing big file. Proper job"

my grandfather did it, he was an engineering machinist and whilst serving the middle of the desert the halfshaft went and he used a length of ironwood as a 'fix, get the job done and get back' it was one of the very few things he mentioned about his war service (he was in a special airborne/reme unit ) he was able to fix an amazing array of things with whatever was available or make the tools necessary.

 

[MikeD]

I'll just leave this here

www.splinterbike.co.uk

 

[futuristicoldman]

Talk about throwing down the gauntlet :shock:

 

[MikeD]

You say that, but it doesn't have a chain, let alone a derailleur, so you're ahead there

 

[Koupe]

my grandfather did it, he was an engineering machinist and whilst serving the middle of the desert the halfshaft went and he used a length of ironwood as a 'fix, get the job done and get back' it was one of the very few things he mentioned about his war service (he was in a special airborne/reme unit ) he was able to fix an amazing array of things with whatever was available or make the tools necessary.

Ah, fair enough, I didn't realise it happened back then - I had visions of a late 70s CF and a couple of roadies...

I suspect it would literally have been a life-or-death issue for your grandfather in that case, he sounds like a bit of a legend

 

[futuristicoldman]

Not much time on my hands tonight but made a tiny bit of progress.
After looking at the wooden bike with no nuts and bolts I think im going to try and make the jockey pivots and parallelogram pivots out of bone. I know it wont be as strong but this was never going to be an exercise in practicality.
If it works it will probably be ridden around the block a few times then stuck on a shelf somewhere.
Out of interest, has anybody here ever done a home made mech out of a lump of aluminium?