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
- Number of 3D-printed parts: 44
- Number of buildplates: 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 the links below to download each individual STL file. You can also download the ready-made four build plates.
- Beam AGD ESS USH SYM BU3x2x1 - SPN-BEM-0301 (1x)
- Beam STR ESS BU04x01x01 - SPN-BEM-0041 (1x)
- Brace CRN ERR ASYM BU1x2x6x0.25 - SPN-BRC-0102 (2x)
- Brace STR ERR BU04x01x00.25 - SPN-BRC-0003 (4x)
- Nut PH CL BU1x5mm - SPN-NUT-0018 (6x)
- Nut CPN RH BU1x1.75 - 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)
- Wheel PLY FXD BRD THREYE BU1x1 - SPN-WHL0005 (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 BU1.00x0.50 - SPN-PIN-0094 (1x)
- Washer FXD BU1x0.25 - SPN-WSR-0001 (7x)
- Washer FRE BU01.00x00.25 - SPN-WSR-0038 (6x)
- Wheel GND TTRD FRE BU3.00x1.00 - SPN-WHL-0001 (2x)
- Wheel GND TTRD FXD BU3.00x1.00 - SPN-WHL-0002 (2x)
- Tool Driver NUT SCR PIN THR - SPN-TOL-0001 (1x)
- Tool Spanner NUT - SPN-TOL-0004 (1x)
- Instruction URL sign
Build plates
Click the links below to download each ready-made build plate.
- Sign, nuts, washers and pulley
- Wheels
- Beams and braces
- Shoulder screws and pins
- Complet set (all four plates above in one file - 3MF format - 165 x 165 mm)
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
.jpg "Click to enlarge image STEMFIE.org_Rubber_band-driven_car_(sps-000001).jpg")
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