Now is the time to start producing these.
The design is bullet prof.

I am using an aluminum extrusion embedded in the plastic
trigger housing to precisely align the LED and photo transistor.

Repeatability is excellent.

This fits the RX7 racingpulley/hub.
The stock hub is similar but only four 6 mm bolts
instead of six 5 mm bolts.

Those long SS 4-40 socket head screws are a buck apiece :)

Paul Lamar

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