Aluminium, carried home on a bicycle
Notice the pieces on the right are curved to create the taper on the robot's body
Sections of bar to make Ralph's feet
An inefficient way of cutting lumps of aluminium (I didn't have a proper saw in 2009)
Drilling a foot on the lathe
The robot 'necks' are made of offcuts of Corian, a kind of plastic used for kitchen surfaces
Cutting the grooves for the two domes that make up Ralph's head
Other parts (each robot needs two hands, wrists, shoulders, and thighs)
Metalwork painted, just have to trim 66 potentiometers...
'Weird Sound Generator' PCB
Work in progress
I only really had to make one robot, and then it made the others all on its own...
Wiring made easy with photocopied diagrams and a highlighter to colour completed connections
Notice the useful sliding drawer compartment for the 9V battery
One robot was pink