The objective of this design was to create a minimal-cost valve for lab-scale or small scale irrigation systems where water has to be diverted to many individual outlets.
It uses a cheap (~2EUR) Kuman KY66 mini servo to drive the actuator. This servo can be controlled and powered using only an Arduino or ESP-Devboard (some limitations apply with the 3.3V logic level), even though a dedicated servo driver is recommended.
Because the water is contained completely within the pinched silicon tube, the assembly is safe from leakage without the need for water-proof printing on a budget.
Important: The valve is for low-pressure applications only, e.g. with a water supply from a small water tank, or using a pump you can turn off, or a tap you can close using a proper shut-off valve.
Note: you will only one pair of levers provided, I have provided multiple versions to adapt to different tubes. Smaller gaps will increase the squeeze on the tube (see below).
Optional Use Cases:
| ServoValve_-_Case.stl | 691.2KB | |
| ServoValve_-_Excenter_Single.stl | 91.5KB | |
| ServoValve_-_Lever1_-_gap06mm.stl | 179.6KB | |
| ServoValve_-_Lever1_-_gap08mm.stl | 177.5KB | |
| ServoValve_-_Lever1_-_gap10mm.stl | 178.1KB | |
| ServoValve_-_Lever1_-_gap12mm.stl | 177.5KB | |
| ServoValve_-_Lever1_-_gap14mm.stl | 177.0KB | |
| ServoValve_-_Lever1_-_gap16mm.stl | 175.3KB | |
| ServoValve_-_Lever1_-_gap18mm.stl | 175.4KB | |
| ServoValve_-_Lever1_-_gap19mm.stl | 175.1KB | |
| ServoValve_-_Lever2_-_gap06mm.stl | 179.6KB | |
| ServoValve_-_Lever2_-_gap08mm.stl | 177.5KB | |
| ServoValve_-_Lever2_-_gap10mm.stl | 178.1KB | |
| ServoValve_-_Lever2_-_gap12mm.stl | 177.5KB | |
| ServoValve_-_Lever2_-_gap14mm.stl | 177.0KB | |
| ServoValve_-_Lever2_-_gap16mm.stl | 175.3KB | |
| ServoValve_-_Lever2_-_gap18mm.stl | 175.4KB | |
| ServoValve_-_Lever2_-_gap19mm.stl | 175.1KB | |
| ServoValve_-_Top.stl | 936.2KB |
