Cheers all, This one if far from perfect. Very sturdy and heavy, but fully functional. Take it, improve it, share it and give some joy for your kids and yourself.
You'll need:
I used some food coloring for water. Also used thread glue on the screws. Also possible to easily add one more axis by adding gears at the bottom and make it rotatable.
Have fun and share the results.
hydraulic_manipulator.svg | 86.5KB |