Servo mount for 6.35mm (1/4") ball valve, hex style.
thingiverse
Servo mount for (very cheap) ball valve, 6.35mm (1/4") variant. Direct coupling which is press fitted and screwed to the servo, and press fitted/clamped down on to the ball valve rod. Using standard 20Kg metal gear servos with 20x40mm (horisontal plane) housing, and M5 bolts for clamping/rigidity, Tested with PLA and PTFE - both works nice/ seems more than rigid enough. Will probably use PLA for the "production batch" since it can print a lot faster. Pic shows a pneumatic control jig with separate servos on inlet and exhaust, a pressure sensor and the fill/flush line. Why 2 servos instead of single one with multi port ball valve you say - reason: cheap prototyping and had some of the hardware available in the junk box :)
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