Following car
Yahboom Building:bit starter kit
A line-following car on the Yahboom Building:bit expansion board. Its two motors drive the big back wheels through 24-tooth gears, two small pulley wheels under the nose carry the board, and the board's own line sensors steer it along a black line. Turn it in 3D, build it step by step or open it in BrickLink Studio.
Loading 3D model…
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.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
Parts
| Part | Colour | Where to get it | Qty |
|---|---|---|---|
| Technic Pin with Friction and Slots | Black | BrickLink 2780 | 16 |
| Technic Wedge Belt Wheel Tyre | Black | BrickLink 2815 | 2 |
| Technic Beam 11 | Black | BrickLink 32525 | 3 |
| Technic Gear 24 Tooth with Single Axle Hole | Dark Bluish Gray | BrickLink 3648 | 2 |
| Technic Bush with Two Flanges | Light Bluish Gray | BrickLink 3713 | 4 |
| Technic Beam 9 | White | BrickLink 40490 | 2 |
| Technic Beam 13 | Medium Azure | BrickLink 41239 | 2 |
| Technic Wedge Belt Wheel - Not Reinforced | Lime | BrickLink 4185 | 2 |
| Technic Axle Pin with Friction | Blue | BrickLink 43093 | 2 |
| Tyre 22/ 30 x 30 ZR | Black | BrickLink 44309 | 2 |
| Technic Cross Block 1 x 3 (Pin/Pin/Pin) with 4 Pins | Dark Bluish Gray | BrickLink 48989 | 2 |
| Wheel Rim 20 x 30 with 6 Spokes and External Ribs | Medium Azure | BrickLink 56145 | 2 |
| 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 | 1 |
| Technic Pin Long with Friction and Slot | Blue | BrickLink 6558 | 4 |
| Technic Pin Long with Pin Hole Type 1 | White | BrickLink 87082 | 4 |
| Technic Axle 4 with Stop | Dark Bluish Gray | BrickLink 87083 | 4 |
| BBC micro:bit V2 electronics | Micro:bit Educational Foundation | 1 | |
| Yahboom Building:bit expansion board electronics | 1 | ||
| Yahboom Building:bit motor module electronics | 2 |