I was at Menards hardware store the other day and saw electronic dead bolts. Upon close inspection they were using a small motor and a worm gear transmission to throw out the bolt and bring it back.
My question: How do they design it so the worm gear cuts off after the bolt extends? Then how does it reverse direction in order to pull the bolt back?
Thanks,
My question: How do they design it so the worm gear cuts off after the bolt extends? Then how does it reverse direction in order to pull the bolt back?
Thanks,