HOLY CRAP!!! Thank you soooo much for these plans! We spent a fortune on the $200+ door openers and already had 2 of them break (out of 3!) When they break we have to send them back, huge pain. We have 5 other houses so I couldn't justify getting any more of those expensive ones, especially w/ the track record on them breaking within 2 months. Can't wait to try something home-made instead!! (at least we might have a chance of fixing it ourselves whenever it malfunctions - we check all doors every night and morning anyhow, but this would save us from having to get up so early! - thanks so much!)