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A comment on Hardware Case Study: Why Lockitron Has Taken So Long To Ship. Parent comment

Re:Hardware Case Study: Why Lockitron Has Taken So Long To Ship by noonespecial on Sunday July 13, 2014 @10:06PM (#8029269)
I have a kwikset keypad battery deadbolt and this situation worried me so much I pulled the battery mid-turn to test it. No problem. I was so impressed I opened it up to see how they did it. It's so stupid simple I should have just thought of it. Obvious things in hindsight.
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Re:Hardware Case Study: Why Lockitron Has Taken So Long To Ship by matznerd on Monday July 14, 2014 @01:29AM (#8029609)
Why do you obscure what technique they used?
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Re:Hardware Case Study: Why Lockitron Has Taken So Long To Ship by noonespecial on Monday July 14, 2014 @02:21AM (#8029705)
Didn't mean too. Its a small springloaded clutch about the circumference of an old American half-dollar coin. Its got a detent in it that allows the motor to "pick up" the bolt wherever it may be in the lock cycle as it goes by but isn't so stiff that it can't be defeated with the key.

If you're into RC is looks a lot like a "servo-saver".

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Re:Hardware Case Study: Why Lockitron Has Taken So Long To Ship by bravo22 on Sunday July 13, 2014 @10:08PM (#8029271)
They use a one way clutch if I recall correctly.
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