the one with the warloard is a large single eye. from what i have heard though the warloard eye has some difficulty picking up dark paint.
i personally would recomend the bbe version which uses 1 emiter and 1 reciever and waits for the beam to be broken by the ball hence the name break beam eyes. As soon as something crosses the line it picks it up.
This is used in many applications including saftey precautions in machine shops. granted a larger version but same priciple. can't go wrong with them in my opinion and their cheeper to boot
Tribal Twister 2.0, palmer rock, lpc, macdev asa, fury
tribal mephisto 2.2, palmer micro rock, aka sidewinder
99 right feed autococker, mostly stock
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