I took this from the drawing on the previous pageAs you weld it like that Paul, how do you get your axle on it? It closes the opening ad the bottom.
A decent amount of lock there Paul.So 11 days before I found some time to deploy the new swivel and using a big pulley I have been assured will be rent asunder by the forces ....
Not an ideal mounting position for the big pulley [ chain not parallel to front fork ] it needs to be closer to the middle of the head tube.
Not an ideal mounting position for little pulley either could be higher and closer to big pulley.
I tried to pedal the thing , most disappointing it took a huge amount of force to turn the pedals , however once moving it could do some incredible things ?
full left and full right !!!
On full right chain grazes tyre and it still turns.
look at the crazy chain angles , twisting or what ?
So why so hard to turn the pedals ? how to quantify it and measure any improvements ?
best I could come up with 10 x M12 40mm bolts with pedal horizontal could move pedal downwards ?
So not really a fair test as Python has bigger wheel and different gearing however on 3 x M10 40mm bolts needed to move that.
After an afternoon of messing I found:-
a) wheel axle locknuts not tight and wheel tightening slowly as it was used
b) rear mech to much resistance in pulleys [ same as SRAM I started with , with locked up lower pulley
c) possible stiff link in chain
After addressing all those problems I ended up with 5 x M12 40mm bolts needed to move the pedal , so 1/2 what I started with and only 1.67 more effort than Python.
Maybe the price of the extra pulleys and all that chain , boy does the chain go through some angles compared to Python.
Next ? need a trike rear end so I can sit on it and figure out some handlebars oh and add some brakes.....
More delays coming as I go on holiday from Friday and yet more pedal car racing on the 30th can't wait.
PossiblyA decent amount of lock there Paul.
It don't work yet it has not turned a wheel on the ground yet , still plenty of room for failureI gave up on twisted-chain as I found it all far too fiddly and difficult to make work, so well done you.