mouCarXX | Xe mousetrap chạy xa - STEM, MINT

mouCarXX 

Current distance record by:   <<<  your name here?   >>> 

Can you beat 50 metres?

We verified this car travels 50+ meters, but we haven't found its limit yet!  Can you beat 50+ metres? Test your build on a smooth surface and leave a comment with a photo and your exact distance result.

If you break the record, we will update the models name in the headline  to "MouCar XX" (where XX is your new record distance) and show your username on this page.  

Key Features:

• Adjustable wheel size - from 4cm to 18cm diameter

• Adjustable Lever Arm length - slide the clip up or down and adjust the force

• Adjustable mousetrap position - extends the lever arm to its maximum of 40cm

• Zero-Glue Assembly 

Video:    

Video created by TM. Video plays faster than real time. 

Physics Lesson

This car is perfect for teaching. By swapping between the small and large wheels, you can demonstrate how changing the wheel diameter affects speed and distance. The adjustable lever arm allows users to test how the "pull" of the spring translates into rotational force.

Material Required

• 2x   Steel Axle   2mm diameter, length:  100mm

• 2x   Wooden Square Sticks  6x6mm , length: 50cm ->  frame

• 1x    Wooden Square Stick   6x6mm, length: 40cm -> lever arm

• 1x    Mousetrap Standard Victor Brand

• 1x   Fishing line / String

Print

• All parts you need in one file:   all_parts_no_whees.stl  

  • add wheels from the wheels folder (rear: 120mm, front 80mm recommended)

  • for  repair and maintenance:    see folder single parts

Print Settings

• No support - print orientation as in the file

• 4-5 perimeter walls 

• 0% infill

• Tested with PLA+

Quick Assembly 

Click together as in the pictures. Hint for the axle:  Insert both sides of the axle into a wheel hub by 33% of its length.  Use a hammer to hit the assembled axle one or two times. The final length with hubs is 100mm. 

For more detailed assembly instructions  see:  https://www.instructables.com/MouCarXX-Mousetrap-Car-Long-Distance/

Trouble Shooting  

• Sanding wood is easier than sanding plastic

• If clips are too tight break them off. 

• If mousetrap bracket is to loose fix a cable tie at the end. It will hold it in place

Disclaimer

I do not take any liablity for damages or injuries. Build and use at your own risk. The linked products and pages are for reference only. I dont get paid for from the owners.