HotWheels / 1:64 scale models launch ramp with launch mechanism and HotWheels track adaptor. Designed to be printed in parts and assembled. Requires two M3x20mm or two M3x30mm screws to attach the launch mechanism to the ramp. Cars free-roll based on their own weight and rolling resistance, so you can figure out which of your 1:64 scale models (or HotWheels) are the quickest and can ride the longest distance.
You have two ramp extension options:
Things to consider: be careful with connecting the ramp parts together to apply even force on both ends to nicely secure parts together without breaking.
The author marked this model as their own original creation.