Doc Fizzix Double Trouble Twin Powered Mousetrap Racer

Tower Stock# DFXX1718  •  Manufacturer Stock# 1718
Doc Fizzix Double Trouble Twin Powered Mousetrap Racer (large view)
Notes from our tech department:
Turbo charged with two mousetraps for the twice the power and twice the fun
this is the Double Trouble Mousetrap Powered Racer Kit from Doc Fizzix.


Easy-to-wind and snag-free string release system eliminates tangles
and snags for increased performance
Pre-cut and drilled balsa wood frame
Uses lightweight low inertia DVD/CD layers for wheels
Travels distances from 40 to 80 meters (131 to 262 feet)
Twin mousetrap design for twice the power
Can be assembled in less than 30 minutes for most first time builders


Two Pre-Drilled Balsa Wood Side Rails (18" x 1-1/2")
One Balsa Wood Top Deck (12" x 3")
Two Brass Tubing Axles (6x3/16")
One Brass Tubing Lever Arm (12" x 1/8")
Four DVD Wheels
Eight Rubber DVD/CD Spacers
Four Metal Thrust Washers
Two Victor Brand Mousetraps
One Zip Lock Axle Hook
One 36" long piece of Kevlar String
One Top Secret Construction Guide and Performance Tips Sheet


CA Glue and Needle Nose Pliers


Length: 21" (533mm)
Width: 6" (152mm)
Lever Arm Length: 12" (305mm)


What is a mousetrap powered car and how does it work?
A mousetrap-powered racer is a vehicle that is powered by the energy
of a wound up mousetrap's string. The most basic design is a follows
One end of a string is tied to the tip of a lever arm that is
attached to the mousetrap's "snapper arm". The other end of the
string has a loop that is designed to catch a hook attached to a
drive axle. Once the loop is placed over the axle hook, the string
is wound around the drive axle by turning the wheels in the oposite
direction to the vehicle's intended motion. As the string is wound
around the axle, the snapper's lever arm is pulled closer to the
drive axle causing the mousetrap's spring to wind up & store energy.
When the drive wheels are released, the string is pulled off the
drive axle by the mousetrap causing the wheels to rotate.

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