Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

3D Printed One Wood Derby Racer #3DPWD

by MChrisP1, published

3D Printed One Wood Derby Racer #3DPWD by MChrisP1 Oct 16, 2017


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This is a basic design for a 3D Printed Pine Wood Derby Racer. The basic design as based off of my own Pine Wood Derby car I carved out of a block of wood when I was in the cub scouts.

At the upcoming East Coast RepRap Festival, we will be holding a 3D Printed Pine Wood Derby race! We will follow all of the Boy Scouts of America Rules, except we will 3D print the bodies of the cars!

More details to come on the when and where of the race and #ERRF2018, but for now, I wanted to share the example of a 3D Printed Pine Wood Derby car to get your creative and competitive juices flowing!

As far as getting your completed car as close to but not exceeding the 5 ounce limit, you will have to play with perimeters and infill percentages to get you the right mix for the ideal weight. Good luck!

ERRF2018 3DPWD Car Rules

All parts must be 3DPrinted except the car axles and wheels.
Wheels & axles will be official BSA standard issue from Revell.
No polished, enhanced or coated wheels or axels are allowed.
Chassis weights are allowed.
Car width may not exceed 2 1/4 inches
Car length may not exceed 7 inches
Car may not exceed 5 ounces
Any details must fit between length, width and weight requirements.
Car must be free wheeling, starting and propulsion or other mechanical devices are not allowed.
Only dry lubricants are allowed.
3DPWD entrant cars must be built in the current year.


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hi MChrisP1

The East Coast RepRap Festival says "Overall Width: not to exceed 2 3/4 inches (69.85 mm)"
but, you said "Car width may not exceed 2 1/4 inches"
you might want to fix that