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HalcyonKnights t1_itpzrlf wrote on October 25, 2022 at 1:44 PM

Reply to comment by Dabrush in How can I measure the length of string passing through something? by Dabrush

I would not try to reinvent that Wheel (unless you want to spend more time and money on the learning experience).

Mechanical (Rotating Shaft): https://www.amazon.com/Mechanical-Counter-0-999999-Resettable-Accurately/dp/B0975Y79RF/

Mechanical (Paddle Whack method): https://www.amazon.com/KTRIO-Counter-Handheld-Clicker-Mechanical/dp/B075QFK6DG/

Electronic: https://www.amazon.com/DIGITEN-Digital-0-99999-Proximity-Magnetic/dp/B01DNLRAUA

Gubguls t1_itr3j2h wrote on October 25, 2022 at 6:07 PM

I don’t think that’s the type of sensor he needs. Something like the rotary encoder as was suggested.