Rubber-band-driven Car

The STEMFIE rubber-band-driven car is easy and quick to build and demonstrates the retention and controlled release of energy to achieve motion. The inspiration for this design is borrowed from science classes in schools, using the mousetrap car. 

Information  –   Parts list  –   Build plates  –   Downloads  –   Assembly steps  –   Gallery

Information

• Number of 3D-printed parts: 44
• Number of build plates: 4 plates < 140 x 140 mm)
• Non-printed items: A short piece of string, three small rubber bands.
• Tools: Spanner (SPN-TOL-0004) and driver (SPN-TOL-0001)
• Assembly time: 10 minutes

Parts list

Click for larger image

Click the links below to download each individual STL file. You can also download the ready-made four build plates.

• Beam AGD ESS USH SYM BU03x02x01 - SPN-BEM-0301 (1x)
• Beam STR ESS BU04x01x01 - SPN-BEM-0041 (1x)
• Brace AGD 90 ASYM ERR BU02x06x01x00.25 - SPN-BRC-1003 (2x)
• Brace STR STD ERR BU04x01x00.25 - SPN-BRC-0003 (4x)
• Nut PH CL BU01.00x5mm - SPN-NUT-0018 (6x)
• Nut CPN RH BU01x01.75 - SPN-NUT-0038 (1x)
• Nut RH BU01.00x5mm - SPN-NUT-0001 (1x)
• Pin CL RHD BU01.75 - SPN-PIN-0047 (4x)
• Pin CL RHD BU04.25 - SPN-PIN-0057 (1x)
• Pin CL RHD BU05.75 - SPN-PIN-0063 (1x)
• Shoulder Screw RHD RH BU01.00 - SPN-SSC-0044 (1x)
• Shoulder Screw RHD RH BU01.75 - SPN-SSC-0047 (1x)
• Sign URL SLTD LAY BU03x02x01x01 - SPN-SGN-0001 (1x)
• Pin SPP INR LCT BDR BU01.00x00.50 - SPN-PIN-0094 (1x)
• Washer FXD BU01x00.25 - SPN-WSR-0001 (7x)
• Washer FRE BU01.00x00.25 - SPN-WSR-0038 (6x)
• Wheel GND TTRD FRE BU03.00x01.00 - SPN-WHL-0001 (2x)
• Wheel GND TTRD FXD BU03.00x01.00 - SPN-WHL-0002 (2x)
• Wheel Pulley FXD BRD THREYE BU01.00x01.00 - SPN-WHL0005 (1x)
• Tool Driver NUT SCR PIN THR - SPN-TOL-0001 (1x)
• Tool Spanner NUT - SPN-TOL-0004 (1x)
• Instruction URL sign

Build plates

Right-click and save the the following build plates (.3mf file format).

• Sign, nuts, washers and pulley
• Wheels
• Beams and braces
• Shoulder screws and pins
• Complet set

Downloads

You can download the complete file set for this project from this link. The files for 3D printing are available as individual files and as ready-made build plates.

Assembly steps

Gallery

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