@t3p3tony Yes, I think a laser sensor would be the best choice, and Yes 0.3mm is nothing, I'm using a 5mm nozzle and 4 mm layer height.

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RE: Long-distance proximity sensor
@t3p3tony Yes, I think a laser sensor would be the best choice, and Yes 0.3mm is nothing, I'm using a 5mm nozzle and 4 mm layer height.