The first step is to collect all the material you will need. Part of it you can find in a specialized store for model building, some of it you will have to get from old objects. The rest was manufactured on a lathe, according to some technical drawings.
| - base plate | (manufactured) |
| - 8 shafts | (manufactured) |
| - 16 bearings | (model building store) |
| - 16 bearing holders | (manufactured) |
| - 8 wheels | (model buiding store) |
| - 3 permanent magnets | (old computer hard disks) |
| - 2 caterpillar links | (transimission belt) |
| - 2 DC engines | (old objects / model building store) |
| - 2 transmissions: 4 gears | (old objects) |
| - aluminum L-profile | (hardware store) |
| - 2 large 90° angles | (hardware store) |
| - 4 small 90° angles | (hardware store) |
| - 1 printed circuit board | (manufactured / electronics store) |
| - 5 combined light sensors | (electronics store) |
| - 5 micro switches | (electronics store) |
| - screws, bolts,… | (hardware store) |