Bill and Ben in a wheelbarrow race with a bewildered Flower shaking her head between them.
It took a while to finally get this one finished, but it does have an interesting arrangement of gears and Cams to drive the characters.
Again the construction is straightforward, guided by the drawings shown here, only needing a 3d printer and some Ø2 mm rod for the pivots, pins and shafts.
Bill and Bens Wheelbarrow race
You will need some extra components to complete the build:-
Ø2 mm steel Rod for pivots etc
Acetone to solvent bond some of the parts together.
Drills Ø2 mm for the holes that need to be a tight fit.
Drills Ø2.2 mm for the holes that need to be a loose fit.
For further details and models goto