Replacement trigger wheel for Chinese 3 way ball valve T-type
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Trigger wheel for Chinese three way valve motor to reverse the opening/closing direction if required.
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- Printables
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- Other House Equipment
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- GNU General Public License v3.0
Replacement trigger wheel for the Chinese three way valves. The clockwise model is the original trigger wheel, the counterclockwise model is an adaption to reverse the opening/closing direction.
See the attached photos on where to find this part in the motor. There are four Philips screws that hold the orange cap on, then two Philips to take the motor out. Then you can replace the trigger wheel on the shaft and put everything back together.
The wheel is used to press microswitches to stop the rotation of the motor in the correct positions. I am currently testing mine in PETG (6 wall, 20% infill) but be aware that if the triggers are worn or broken off, this valve will not stop rotating! So use at your own risk.
You might need to adjust the 'Hole Horizontal Expension' in Cura (not yet available in PrusaSlicer) or adjust the shaft a little in OpenScad when it doesn't go around the motor shaft. There was 0.1mm difference between my 230V and 12V model so they are not all equal.
I will report back next year to see how they hold up.