Big bit of aluminium, carried home very slowly 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 - must get a power hacksaw
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...
A 'Weird Sound Generator' PCB from musicfromouterspace.com
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
The pink one is called Ralphette
After finishing making these I discovered there were in fact other Ralph the Robots, including this slightly scary one.
He has lights behind his tie and his hat vibrates, but he sadly can't move his mouth.
(back to Ralph page)