Free
It's free to download
Technical
1 x Filament for platform & wheels $3
2 x Steppers( 28byj-48) $4
1 x Servo (SG90) $1.5
3 x rubber bands $0.2
10 x M3 10mm screws $0.3
1 x 9V battery $1
Total cost $10 (excluding the Arduino controller and a pen)
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Joined about 11 years ago
Oslo, Norway
Developer and tinkerer. Makes software by day, hardware by night.
Free