The Screwbike Project: Building a Mechum Wheel Omni Directional Co-linear Drive Bike

TLDRIn this video, I document the process of building a unique bike using mechum wheels and an omni directional co-linear drive system. The bike features four massive wheels with dozens of smaller wheels around the circumference. The wheels are driven by O Drive brushless motors and belts, providing precise control and maneuverability. The project also includes the design and fabrication of custom wheel hubs, spacers, and a chassis. The bike is powered by four 6s lipo batteries, delivering a voltage of nearly 50 volts. Join me on this amazing journey as we explore the possibilities of alternative bike designs!

Key insights

🚴The Screwbike project involves building a unique bike with mechum wheels and an omni directional co-linear drive system.

🔧The bike features custom-designed wheel hubs, spacers, and chassis, created using 3D printing and steel fabrication techniques.

The bike is powered by four 6s lipo batteries, delivering a voltage of nearly 50 volts for optimal performance.

🎛️The O Drive brushless motors and belt drives provide precise control and maneuverability, making the bike highly responsive and agile.

🔩The assembly process involves aligning and spacing the wheels, attaching the motor assemblies, and ensuring proper tensioning of the belts.

Q&A

What inspired you to build the Screwbike?

The idea for the Screwbike originated from my previous experiments with omni wheels and the desire to create a unique bike design that allows for omni-directional movement.

How did you design the custom wheel hubs and spacers?

I used a combination of 3D printing and steel fabrication techniques to design and create the custom wheel hubs and spacers. 3D printing was used for the wheel hubs, while steel was used for the spacers for added strength and durability.

What advantages does the co-linear drive system offer?

The co-linear drive system, powered by O Drive brushless motors and belt drives, provides precise control and maneuverability. It allows for responsive and agile movement in any direction, making the bike highly versatile and fun to ride.

How long did the assembly process take?

The assembly process for the Screwbike involved aligning and spacing the wheels, attaching the motor assemblies, and tensioning the belts. Overall, the assembly took several weeks to complete, including designing and fabricating custom parts.

What are your plans for future iterations of the Screwbike?

In future iterations of the Screwbike, I plan to further optimize the design and performance. This could include improving the motor control system, experimenting with different wheel sizes and configurations, and exploring additional features for enhanced rider experience and safety.

Timestamped Summary

00:00Introduction and overview of the Screwbike project

02:30Building the custom wheel hubs and spacers

05:00Assembling the wheels and belts

08:00Installing the O Drive motors and belt drives

10:30Overview of the Electronics enclosure and battery setup

12:00Finalizing the assembly and testing the bike's maneuverability

13:45Conclusion and future plans for the Screwbike project