World's First SCREW-BIKE

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Published 2024-04-15
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Do you remember when I made a bicycle with an omni-wheel on the front? A while later I moved on and tried to make a bike with two omni-wheels.
As soon as I’d assembled that version I realised it would have been better to have made Mecanum wheels, which have the little wheels slanted all around them. These are typically used on the four corners of a robot so it can move in any direction, but I want to put them all in a line, so the bike still balances sideways, but can screw itself along.

Matthew Watson's Video:    • Collinear Mecanum Drive ICRA 2019  
CAD & Code for this project: github.com/XRobots/ScrewBike/

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HARDWARE/SOFTWARE

Below you can also find a lot of the typical tools, equipment and supplies used in my projects:

Filament from: www.3dfuel.com/
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Bearings from: simplybearings.co.uk/
Lincoln Electric Welder: bit.ly/2Rqhqos
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Ryobi Tools: bit.ly/2RhArcD
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Soldering Iron: bit.ly/2DrNWDR
Vectric CNC Software: bit.ly/2zxpZqv

CAD content is sponsored by Autodesk Fusion 360

All Comments (21)
  • @MeleeTiger
    For future builds you intend to ride, I strongly recommend adding a dead-man style safety, not just the push button, think jet-ski where it's a cord around your wrist in case you fall off.
  • this deserves a followup video with passing a silly obstacle course
  • @madGambol
    It would have nice to see the bike just go forward in a straight line just like a regular bike. Sort of in the vein of showing all its modes of motion. What a project!! Great work!!!
  • @petersilie2432
    "Look ma, I made an insanely complex self stabilizing people transporting machine. Combining highly sophisticated knowledge of mechanical engineering, 3d-crafting, electronics and software engineering. Producing a fully functional prototype, that would have taken a well founded and staffed company a few dozen man-years to complete. And I did it in my DIY-shop in a few months, and made it look easy!" "Stop that nonsense James, and eat your porridge! "
  • @Xerzaph
    You have to respect a proper scientist and engineer. Making this open source rather than trying to monetize it for all it's worth. You're absolutely phenomenal James. I could see this being used instead of a camera on a track.
  • @kemon3733
    People: That's like reinventing the Wheel James Burton: Yes
  • I can't imagine how obnoxious it was to attach the top wedges to the top plate. You pt so much effort into the little things in your videos and then gloss over them. Your patience and determination is inspiring.
  • @grafikmekaniker
    Wow, fantastic job. This thing is just amazing. The circles and sideways are great and all, but I'd love to see you give it the beans in a straight line forward.
  • @mktj1
    “Screw bike mecanum wheel omnidirectional colinear drive bike project” really rolls off the tongue!
  • @ThePolaris87
    The number of entire categories of knowledge required for this: programming, autocad, electronics, motors, 3D printing, welding, math & physics... and then all the tools, materials and space. This is a MIND-BOGGLING project for one person 😮🤯😵‍💫. Just wow! 👏👏👏
  • If you can find forward and backward handles, I suggest building a VCS (Vehicle Control System) program that translates the two different handlebar actions into different effects: - both full forward: full speed ahead - one full forward, one neutral: slight forward engine power, but turn in the direction of neutral - one full forward, one full backward: full rotation in direction of full backward - one full backward, one neutral: slight backward engine power, but turn in direction of full backward - both full backward: full speed backward - both neutral: full stop This would be much more intuitive of a driving experience. Combine that with the yaw from leaning, and I think Disney will be hitting you up for on-set speederbikes!
  • @Pailzor
    As far as practical application, the only drive-testing I noticed that really matters is 12:40 - 12:46, where you go forward, spin, and go backward. Most of the rest is going sideways, on sideways wheels, so of course it works. Also, it appears to go faster sideways, because of the wheel-omniwheel size difference. I'd suggest facing the full wheels forwards as usual, and it'd make a highly-maneuverable motorcycle, with comparable speeds to a regular one. That said, awesome build, and it looks like you had a lot of fun riding it around.
  • @Eddesignful
    Any other channel would turn this into 20 build videos. This one is informed by all the omni bikes that came before. It looks like you had an idea, you executed it and it worked beyond your expectations with very little adjusting. Great work!
  • @DouglasWalrath
    i'd change the controls to use both twist grips to control turning, twisting one twist grip turns the bike in that direction and twisting both moves the bike forward/backward depending on the direction switch, this would make it easier to steer at speed since you can just slightly let off one of the twist grips to steer
  • It is possible that these design ideas are suitable for automatic forklifts in warehouses. Great job.
  • @joepie221
    OK...up until about 10 minutes ago, I really felt like I was on top of my game. Watching this video made me feel like a first day apprentice. Extremely well done. Great project and video. New sub here.
  • @Robothut
    Lots of spinning and sideways demos, but very little going forward video. It is amazing and you did a fantastic job on the design and build. Thank you for sharing with us.
  • I am continuously amazed by the patience of this man to wait 100s of hours for his parts to print and then assemble them by hand cranking a hydraulic press!!
  • Dude, stunning level of thinking, design, engineering and building. You are a legend. The possible uses of this for things like wheelchairs is amazing