I've been wanting to build a motorized bicycle for some time now and I'm wonding if it's possible to build one on a shaft driven bike.
I saw a shaft driven bicycle for sale at a flea market today. I'm intrigued but not enough to drop $500... especially since I'm still in the honeymoon phase with my new bike.
Anyone have any reviews or exeriences to share?
I'm looking for a yamaha xs650 and passing up a lot of yamaha xses that aren't 650 and are shaft driven. Why do they make bad or difficult choppers?
I have a 6 column structure that will have high moment forces (substation with tensioned wires attached). Structure weighs 77 kips, so not too much axial load. I'm in very poor soil, and the bearing strata is around 20' deep. So doing 6x 4.25' diameter drilled shafts 20' deep seems like a lot of concrete for what loads we are expecting. I'm thinking a driven pile with a 4.25' diameter concrete cap would be cheaper and sufficient for the six columns, but I'm not sure if driving ng a pile 25' is common (since I mostly hear about them being driven super deep). We've never done a driven pile design, but just curious of anyone more experienced has some perspective.
Hi there --
In the (purely diagrammatic) sketch below, the center light blue cylinder is a shaft which rotates and is driven by the red motor. The green components are arms which are mounted onto the rotating shaft and spin with it. I would love to make the green arms linear actuators, rather than static lengths. To do that, I would need to be able to provide power to them as they rotate. Additionally, I would love to get some LEDs which change brightness at the location of the blue rings.
For the LEDs, one possibility would be of course to mount a small microcontroller+battery on the rotating shaft to avoid the need for a slip ring. However, I think for the linear actuators using a slip ring would be unavoidable.
I'm a bit confused though as to how I could actually use a standard [slip ring](https://www.adafruit.com/product/736). It seems like if it was mounted next to the motor with the wires going to the point where the linear actuators meet the shaft, it would still get tangled up. Alternatively, I guess if the slip ring was mounted well above the shaft and the rotating part was facing down, then it would not get tangled... is that the correct idea? (see image 2)
https://preview.redd.it/ch2ebxjf5qs71.png?width=531&format=png&auto=webp&s=da9ab0c93e3fd4332662efd3b9a557d847bf062d
As the title suggest would I be able to do so with these additional info:
- The motor shaft is directly centered in between 2 other shafts that would be driven via chain and sprocket
- The 2 other driven shafts each have their own sprocket which is identical to the sprockets in the motor shaft.
Thank you!
Hi all,
I'm quite new to engineering as a whole, I come mainly from a software development background so apologise if I don't use some terms correctly
I'm looking to build a platform with a base but there must also be a gap between these as there will need to be a motor powered stick between. The platform must be able to support the weight of a human and must not move at all. I'm currently coming up with some low level designs and I'm struggling with finding a way to have the motor between the platform and the base while being string enough to hold a human.
Below is an image I quickly conjured up in Paint to help explain what this looks like. My thought was to have a static metal pole that connected directly from Base to Platform with a driven pulley attached it so that the pole connecting the platform to the base doesnt move but the diven pulley will be able to still turn and rotate the stick around the circular structure. The issue is that I couldn't find any pulleys with a big enough bore that would allow a metal pole around 10cm in diameter (since we'd need to support the weight of an adult human). the other issue is the weight of the stick on the pulley I think it might be too much weight for just one side of a Pulley, it'd need some counter-weight on the other side but the current design doesnt allow that.
I'm open to any suggestions or critique
Edit: What I'm trying to build is a 360 Photo Booth using an Arduino to power a large stepper motor which will control an arm that spins between the platform that a maximum of 2 people will be standing on and the base which is on the floor. The camera will be attached to a telescopic rod at the end of the "stick" in the image
I'm starting a new job which will mean my commute will be over 500 miles a week for at least 6 months to a year.
What shaft driven bikes would be good for commuting? I have a full licence so engine size isn't an issue.
Edit:
Thanks to all for the suggestions it looks like I'll have to shortlist a lot of bikes! So much choice so lots of test rides to come!
