Automatic Garage Door Opener

I have made an electronic circuit so one can have a garage door open and close automatically with the touch of a button or with a remote control. The only problem in trying to sell the circuit is one needs to be able to hook up the mechanical parts to make the door go up and down. I purchased the garage door unit from Timberbrook and modified it with parts from Hobby Town, USA. The motor turns a 440 thread rod that causes the door to open or close. There are two limit switches, one at the top and one at the bottom of the door’s travel. If you would be interested in more information so you could make your own operating door, send me an e-mail requesting more information and pricing. I use to take this garage to most of the trade shows I attend but will now have to make a new one as it sold at the Orlando Show.