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Help me design a cheap automatic door opener


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#31 Lou Apo

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Posted 01 December 2010 - 03:58 PM

Only issue I see is no sliding glass (that I saw) and looks to be for interior doors (doesn't look like it has the power to close an outdoor-door).

Other then that, I agree, for that price, you can't touch it even building it yourself. Heck, maybe it's on e-bay even cheaper!

--Dan


It is rated for the weight of an exterior door, but it would come down to how stiff your latch and weather stripping are. Worst case scenario is that you need to replace the latch and weather stripping with a style that has minimal resistance. Depending on the door that may be simple or very challenging.

#32 Chassmain

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Posted 01 December 2010 - 07:23 PM

It is rated for the weight of an exterior door, but it would come down to how stiff your latch and weather stripping are. Worst case scenario is that you need to replace the latch and weather stripping with a style that has minimal resistance. Depending on the door that may be simple or very challenging.


Great price, and an option that I evaluated in the past. What makes it a no go for me is the lack of manual operation. Most of the more expensive commercial door openers have some sort of hysteresis or electromagnetic clutch to disengage when it's not in operation. This automatic door opener has a large disclaimer to avoid manual use.

Great product, but no way I'll get the rest of the people in the house to ALWAYS hit the button and then wait for the door to open.

#33 Quixote_1

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Posted 01 December 2010 - 11:27 PM

and damn that thing is slow!

#34 jdale

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Posted 07 December 2010 - 12:28 AM

Here's a nice home-made implementation. Not sure if it ends up being cheap or not.
http://uiproductions...-trek-door.html

#35 Lou19

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Posted 03 August 2012 - 09:29 AM

If you want a safe pneumatic door, you must have the proper controls.
Air cylinders used improperly can cause great harm, so be careful!


Thanks,
Lou
Gentleman Door Automation LLC




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