Designed by Nghia (Wilson) Ly, Caleb Mayer, Daria Frame
Subsystems and Components:
Front Steering
The goal for this subsystem is to have a smooth, weight resistant steering column to be able to easily control the bike’s direction of travel. This is constructed as a normal bike headset.
Rear Fork
This subsystem is fairly simple with just a few constraints. The goal is to have this setup so that when attaching the wheel the axis of rotation is offset from the pivoting axis. This simulates a large caster wheel, which is what allows the bike to move forward without the need of being pedaled. This is structured similar normal bike’s front fork, but the dropout has a much greater offset from the steerer tube.
“Caster” Pivot Point
Similar to the front steering subsystem, this subsystem will have to be able to carry the weight of a rider while still allowing a smooth pivoting action. This was completed by making a headset in the rear of the frame.
Frame Structure
The frame structure is where all of the subsystems come together and connect to make the bike as a whole. The middle frame structure is meant to support the rest of the subsystems so that the operation of the bike is performed smoothly and continuously to the ability of the rider.
Footrests
The footrests are at the bottom of the frame where the rider will rest his or her feet while operating the bike. This footrest is one solid tube extending through another larger tube. On the tops of either side there is a rough surface meant to provide traction for better control of the feet while operating the bike.
Possible Testing:
Front Steering
Weight capabilities
Smoothness
Maneuverability
Rear Fork
Weight capabilities
Durability
“Caster” Pivot Point
Weight capabilities
Smoothness
Durability
Frame Structure
Comfort
Durability (support)
Footrests
Traction
Durability
Effectiveness
Location
Acceptable Test Results:
Front Steering
Very smooth rotation
Can hold up to 150 lbs
Rear Fork
Doesn’t deform permanently
Can hold up to 150 lbs
“Caster” Pivot Point
Very smooth rotation
Lasts after numerous rides
Can hold up to 150 lbs
Can achieve maximum needed rotation during operation
Frame Structure
Free of movement for a rider
Be able to support other components
Footrests
Comfortable location
Assists in operation