i like your design. did a similar design sum-year's-a-go. you will find that the 15cm bicycle pedal arms are too short. 40cm arms are the best-! ( full power stroke of 30cm ) But with longer pedal arms. torque or twisting is a probiem. So add a second set of arms. see my
design vid. leg & heel support is more comfort. use all ball bearings. Return springs best
long & light 40cm stretching to 60cm mix on the under-side of vehicle. hope this will help
I've seen something like this years ago used in place of peddles, with a spring set up to return to the orginal position for the down stroke on a ordanary bike and still used the chain. This looks very interesting and hope to see something come out of it.
Not a bad idea, brakes. Most modern vehicles have them. What was the issue at start off? You apparently had to push quite hard, and that creaking of the drive cables bespeaks inadequate rigidity. I have a completely different approach to linear pedal movement, but don't have a shop available to build it. Yours is, however, somewhat lighter than my design. Good work!
@sweeney37 My idea would use linear pedal slides driving either dual chains or toothed belts through overriding clutches. An intermediate, conventional BB sprocket set or hub gears would drive the rear wheel through a short chain path. I hope my description is adequate. I'm sure your next-generation prototype performed much better. My concern with your drive is short, non-variable pedal stroke limiting mechanical advantage. Stay in touch, I'd like to see where it goes.
@MTJLT Hello yes I follow your Ideas, did you look at the redesigned frame work in my next video. Check out Efros bike I was looking at using a similar lever arm set up to this and also using hydraulic rams to charge an accumalator through to a hydraulic motor.
@sweeney37 I liked your laugh when you saw it worked. Is the short stroke your preference, or necessitated by the design? If you can manage a longer stroke I think you'd find better mechanical advantage.
I saw all three videos and I am still unclear on how your cable system works, can you give us a closeup of the system in action? maybe on a stationary stand or something?
Is there anyone else using this system or is it you own design?
@ilivefortheone sorry its not that clear will get some more shots done, still need to fit idlers and re route cable. if you look close at the rear wheel you can see the levers moving . yes its my own design was after a linear pedal stroke rather than traditional pedal rotation as i would find it to difficult so i came up with this system. keep you posted thanks for interest
i like your design. did a similar design sum-year's-a-go. you will find that the 15cm bicycle pedal arms are too short. 40cm arms are the best-! ( full power stroke of 30cm ) But with longer pedal arms. torque or twisting is a probiem. So add a second set of arms. see my
design vid. leg & heel support is more comfort. use all ball bearings. Return springs best
long & light 40cm stretching to 60cm mix on the under-side of vehicle. hope this will help
as i did lot's of testing many desighs. .
JONOVID 1 week ago
I've seen something like this years ago used in place of peddles, with a spring set up to return to the orginal position for the down stroke on a ordanary bike and still used the chain. This looks very interesting and hope to see something come out of it.
candr 3 weeks ago
@candr thanks for interest soon to be posting new vid with improvements
sweeney37 3 weeks ago
:)
minde28383 2 months ago
was hard to get going on the first attempt, some rollers and pulleys needed. Had made a lot of changes will update soon
sweeney37 3 months ago
WOW that look hard peddle. You might have to do a little more researh to get it all worked out.
Good idea thou.
DBJCobb 3 months ago
Not a bad idea, brakes. Most modern vehicles have them. What was the issue at start off? You apparently had to push quite hard, and that creaking of the drive cables bespeaks inadequate rigidity. I have a completely different approach to linear pedal movement, but don't have a shop available to build it. Yours is, however, somewhat lighter than my design. Good work!
MTJLT 3 months ago
@MTJLT would be interested in your ideas
sweeney37 3 months ago
@sweeney37 My idea would use linear pedal slides driving either dual chains or toothed belts through overriding clutches. An intermediate, conventional BB sprocket set or hub gears would drive the rear wheel through a short chain path. I hope my description is adequate. I'm sure your next-generation prototype performed much better. My concern with your drive is short, non-variable pedal stroke limiting mechanical advantage. Stay in touch, I'd like to see where it goes.
MTJLT 4 weeks ago
@MTJLT Hello yes I follow your Ideas, did you look at the redesigned frame work in my next video. Check out Efros bike I was looking at using a similar lever arm set up to this and also using hydraulic rams to charge an accumalator through to a hydraulic motor.
sweeney37 4 weeks ago
@sweeney37 I liked your laugh when you saw it worked. Is the short stroke your preference, or necessitated by the design? If you can manage a longer stroke I think you'd find better mechanical advantage.
MTJLT 3 weeks ago
@MTJLT The stroke was just limited by the construction, I would say the stroke should be as long as is comfortable all to be improved upon
sweeney37 3 weeks ago
junk!
problemnation 4 months ago
@problemnation Im sorry, but what have you designed and built ?
sweeney37 4 months ago
@problemnation Your comment is Junk!
valveman12 4 months ago
I saw all three videos and I am still unclear on how your cable system works, can you give us a closeup of the system in action? maybe on a stationary stand or something?
Is there anyone else using this system or is it you own design?
ilivefortheone 9 months ago
@ilivefortheone sorry its not that clear will get some more shots done, still need to fit idlers and re route cable. if you look close at the rear wheel you can see the levers moving . yes its my own design was after a linear pedal stroke rather than traditional pedal rotation as i would find it to difficult so i came up with this system. keep you posted thanks for interest
sweeney37 9 months ago
interesting drive system you have there, if you were to add a fairing you could keep it really low because your feet are not pushing round a crank...
boiledbeefandcarrots 9 months ago
@boiledbeefandcarrots thanks for that, yes that was the idea and will be the next step and may develop in to a velomobile type vehicle.
sweeney37 9 months ago
@sweeney37 thats what ive got planned for mine too, good luck with it mate, and make sure you post us up another video of the fairing
boiledbeefandcarrots 9 months ago