Caterpillar tripod
Yahboom Building:bit starter kit
A tracked car on the Yahboom Building:bit expansion board. Each of its two motors drives one track, and each track runs round three wheels in a triangle, so it climbs over obstacles and turns on the spot. Turn it in 3D, build it step by step or open it in BrickLink Studio.
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Drag to turn the model, scroll to zoom.
Downloads
Building instructions (PDF)
Model for BrickLink Studio (zip)
BrickLink wanted list (XML)
Building guide
Custom parts for Studio
The Studio zip holds the model, the custom parts it needs and how to install them.
Building steps
The parts added in a step have a red outline.
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Parts
| Part | Colour | Where to get it | Qty |
|---|---|---|---|
| Technic Pin with Friction and Slots | Black | BrickLink 2780 | 22 |
| Technic Beam 7 | Medium Azure | BrickLink 32524 | 1 |
| Technic Beam 11 | Black | BrickLink 32525 | 2 |
| Technic Gear 24 Tooth with Single Axle Hole | Dark Bluish Gray | BrickLink 3648 | 2 |
| Technic Bush with Two Flanges | Light Bluish Gray | BrickLink 3713 | 8 |
| Technic Beam 9 | White | BrickLink 40490 | 2 |
| Technic Beam 13 | Medium Azure | BrickLink 41239 | 2 |
| Technic Cross Block 1 x 3 (Pin/Pin/Pin) with 4 Pins | Dark Bluish Gray | BrickLink 48989 | 2 |
| Technic Chain Tread 5 Wide | Dark Bluish Gray | BrickLink 57518 | 68 |
| Technic Sprocket Wheel 40.4 | Dark Bluish Gray | BrickLink 57519 | 6 |
| Technic Axle Joiner Inline Smooth | White | BrickLink 59443 | 2 |
| Technic Beam 7 x 5 with Open Center 5 x 3 | Light Bluish Gray | BrickLink 64179 | 4 |
| Technic Pin Long with Friction and Slot | Blue | BrickLink 6558 | 7 |
| Technic Pin Long with Pin Hole Type 1 | White | BrickLink 87082 | 2 |
| Technic Axle 4 with Stop | Dark Bluish Gray | BrickLink 87083 | 8 |
| BBC micro:bit V2 electronics | Micro:bit Educational Foundation | 1 | |
| Yahboom Building:bit expansion board electronics | 1 | ||
| Yahboom Building:bit motor module electronics | 2 |