Experiment Bioroid! - a robot controlled toy for small creatures like rats, hamsters, guinea pigs, lizards, or other small pets.
By using "Dremel circle cutter" cut two plastic circles
177mm Diameter for pressure sensitive surface
155mm Diameter for bottom base
In my case I build my own circle cutter
check video for details https://www.youtube.com/watch?v=D8kZFAhsS1g
Just duplicate my circuit analogously to hi-res pics ;)
I will update this page with schematic.
IR distance sensor
Drill hole with drill then by using file make it rectangular.
Insert R distance sensor connector in rectangular hole with super glue.