
Constructing Useful Stuff • Chapter 25 503
Making the Sprinkler
What’s interesting about this robot is that it introduces the idea of pumping fluids
with LEGO components. Is the pneumatic system suitable to be used with water
instead of air? Yes, it is, but we strongly discourage you from trying this technique
because it will spoil your precious pneumatic pumps and cylinders.They have not
been designed with water in mind, and the guys that experimented with water
then had to open the cylinders, clean their insides, and lubricate them again.
This stated, you need some other way to pump water indirectly. For our part,
we adopted a solution that aspires ...