Rubber Band Powered Car Sponge vs Vinyl Wheels

907 views · Published 26 April 2014 · 4:20 · Indexed 22 October 2026

Channel: GrandadIsAnOldMan · 2014 · Science & Technology

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Last night I made this car at the request of Paige Des but I was not happy that I needed to add lead weights to help the wheels grip. Tonight I have swapped the sponge wheels for old vinyl records and superimposed the video runs to compare performance.

The vinyl wheels allowed the car to free wheel further and required less power to cover the distance but were slower on acceleration, so it depends on what task you have been set.

Original build details...
I made a lightweight frame chassis using the flower canes with two for each side and then a sort of diamond cross shape to give it rigidity. The final chassis is about 24" long and 4" wide.
I used more flower canes for the axles.
I used drinking straws as the axle tubes.
The wheels are cut from a foam swimming aid (woggle).
The back wheels are about 3" wide.
The front wheels are about 1" wide
I put a little hot glue on the ends of the axle to help it grip the back wheels.
I needed 11 ounces of lead to weight the car down so the sponge wheels could grip without spinning. The vinyl records needed less power to cover the distance and the weights were not required although they did spin a bit when full power was applied.

Main Components
-
Wheels cut from a swimming aid (woggle) *
  * or vinyl records
8 flower canes (previously I called these garden canes but I see the label says Flower Canes) Mine are 24" long or 60cm
2 Drinking straws
Hot glue
Rubber bands

Main Tools
-
Hot Glue Gun
Scissors
Cutters
Pencil sharpener

If you need guidance on making the CD wheels here is my old helpfile.
https://youtu.be/ZRrjBuWfmrM?list=PLA5a2xPRSrB2v0vxMJyZ9cPweAGx1FK6e

Here is my old helpfile for putting rubber tyres on CDs
https://youtu.be/ZnuPnveCbxs?list=PLA5a2xPRSrB2v0vxMJyZ9cPweAGx1FK6e

Here is my old help file on connecting rubber bands https://youtu.be/EbYuhdwknbs?list=PLA5a2xPRSrB2v0vxMJyZ9cPweAGx1FK6e

Rubber Band Power https://www.youtube.com/playlist?list=PLA5a2xPRSrB1otXh0w36OwsYIHZznUWp6
Rubber Band Powered Car #8 https://www.youtube.com/playlist?list=PLA5a2xPRSrB0zJ5RHjvsw46Mio6uJjF5_
Rubber Band Cars https://www.youtube.com/playlist?list=PLA5a2xPRSrB3g5RiX8Kf_uUBOL0Tb7AS0

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