Use the power of air pressure to lift and lower a load!
This project is easy to build with just a few materials and no hot glue, and the pneumatic-powered action is incredibly gratifying.
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Tips and Troubleshooting
If the machine isn't raising very high, then...
There may not be enough air in the syringes. Add water until there's a total of 10ml between both syringes (not including air in the tubing).
The syringe may be taped too high up on the upright structure. Make sure the syringe is empty and the moving piece is pointing down before taping