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Tool Talk Discussion Forum

Garage door, anybody done this?

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Steve Crum

12-02-2006 06:09:45




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Last year I put a used 9'x8' metal overhead garage door on one of my machine shops. The door is a bit of a nuisense to put up and down by hand. I just bought a used 1/2 horse Craftsman chain drive door operator a friend had.
My question is due to the fact that the door panels are some what flimsy, I would need to reinforce the top panel where the operator arm would connect to avoid collapsing the panel. Plus all the screwing around mounting the track and unit.
This door is the torsion spring design with the two springs wound up on the axle over the door.
(I know all the safety issues involved.) Has anybody mounted an operator along side the door and connected to the torsion spring axle with a chain and sprocket to lift the door rather than 'pull' the door up? The limit switches could easily be set as well as the safety switches.
Thoughts on this?

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620 row crop

12-02-2006 20:12:13




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 Re: Garage door, anybody done this? in reply to Steve Crum, 12-02-2006 06:09:45  
It looks like the sping is wound backwards on the right side in the top picture. If I remenber correcty you wind the spring to make it longer. I think you wind each sping a different diriction .



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dave morgan

12-02-2006 20:31:01




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 Re: Garage door, anybody done this? in reply to 620 row crop, 12-02-2006 20:12:13  
I think the spring is wound to where it would be shorter...Has to be if you think about it a day or so longer...there is a right and left spring if there are double springs on the shaft...one is wound one way and one the other, but you are really winding the shaft the opposite direction in relation to what direction you want the end drums to pull...exactly like a rope starter on a small engine.



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Charles (in GA)

12-02-2006 19:46:49




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 Re: Garage door, anybody done this? in reply to Steve Crum, 12-02-2006 06:09:45  
third party image

Here is the opener for my door. The door is 12W and 14H and has metal panels top and bottom and 5 panels of glass in the middle (like the local jiffy lube or fire station)

The opener is about 15 ft off the floor, the roof has a 21 ft peak outside so the mounting for the opener is about 20 ft off the floor. This has worked good for about 6 years now.

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Charles (in GA)

12-02-2006 19:43:45




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 Re: Garage door, anybody done this? in reply to Steve Crum, 12-02-2006 06:09:45  
third party image

Not sure of the problem with mounting the opener in a normal fashion, other than the height problem. Beg, borrow or steal some scaffold. What you want to do won't work, there is nothing to push the door back down.

Here is my door, 14 ft high and 12 ft wide. The torsion shaft is about 15 ft off the floor. Just add a strong center stile to the top door panel.

Charles

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Charles (in GA)

12-03-2006 14:32:36




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 Re: Garage door, anybody done this? in reply to Charles (in GA), 12-02-2006 19:43:45  
Link

Link

Here are the links to the two pics I posted, thwy were coming thru, but not now.

Charles



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135 Fan

12-02-2006 09:29:27




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 Re: Garage door, anybody done this? in reply to Steve Crum, 12-02-2006 06:09:45  
The springs are to help lift the door by hand. With an opener the springs could probably be loosened off a bit so the weight of the door will lower it when closing. Dave



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Bob

12-02-2006 08:47:22




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 Re: Garage door, anybody done this? in reply to Steve Crum, 12-02-2006 06:09:45  
Usually, those openers are used on vertical;lift doors in tall buildings, where the weight of the door is always "fighting" the spring lift shaft, and the door will always come down when the shaft is turned, unwinding the cable.

Some doors have a track the slopes sharply upward, so they'ed work well with the shaft drive opener, too.

Here's a couple of webpages on the subject:

Link

http://forums.handymanclub.com/eve/forums/a/tpc/f/26310976011/m/13110152731

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Dusty MI

12-02-2006 08:18:02




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 Re: Garage door, anybody done this? in reply to Steve Crum, 12-02-2006 06:09:45  
Wayne Daluton (SP) Has an operator that goes right on the axel shaft. Check it out at Lowe's or Mananrds.



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JK-NY

12-02-2006 08:00:24




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 Re: Garage door, anybody done this? in reply to Steve Crum, 12-02-2006 06:09:45  
It might work for opening but probablly wont close it. Most likely the shaft would turn, cables loosen and door would stay up when you try to close it. We put in a new 16' door at my dads and there was a sticker on it for a type of opener like you want , but I have no info on it. Might be made by Genie(I-drive??).



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Midwest redneck

12-02-2006 07:21:41




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 Re: Garage door, anybody done this? in reply to Steve Crum, 12-02-2006 06:09:45  
How many machine shops do you have? On site, off site?



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Steve Crum

12-02-2006 08:21:36




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 Re: Garage door, anybody done this? in reply to Midwest redneck, 12-02-2006 07:21:41  
2 both are onsite, one is the main fabrication shop and the other the new plasma building and steel storage.



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Chris(WA)

12-02-2006 07:10:21




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 Re: Garage door, anybody done this? in reply to Steve Crum, 12-02-2006 06:09:45  
Sure why not. You are overcoming the same amount of weight/resistance either way you move the door.Have to match the sprocket to the size of the cable pulley to get the same ratio. Should work.



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Chris(WA)

12-02-2006 07:20:21




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 Re: Garage door, anybody done this? in reply to Chris(WA), 12-02-2006 07:10:21  
After further review, no it won't work. After looking and thinking a bit more there would be no way to lower the door! The cable only takes up and relieves some of the weight to help balance the door. It would not pull down to close the door. If your concern is in hanging the drive unit do like I did and hang it by two cables. The cables run diagonally from the unit to the roof supports above the points the tracks are hung from. I reenforced the door with an H frame that fits out to the egdes of the panel it is attached to, (Sheetmetal door) Fifteen years and still going.

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Steve Crum

12-02-2006 06:53:47




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 Re: Garage door, anybody done this? in reply to Steve Crum, 12-02-2006 06:09:45  
third party image

This is the arrangement. I could mount the operator above the axle and chain to it. Installing the operator in the conventional manner is a PITA because the ceiling is 14' high and the door 9'. These doors are temporary until I can afford the 12' steel insulated doors I designed the building to have.

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Steve Crum

12-02-2006 06:58:03




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 Re: Garage door, anybody done this? the other one. in reply to Steve Crum, 12-02-2006 06:53:47  
third party image

This is the 7' door next to the 9' door with an operator installed in the 'conventional method'.
A lot of structure had to be built to support it.



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RickL

12-02-2006 06:15:28




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 Re: Garage door, anybody done this? in reply to Steve Crum, 12-02-2006 06:09:45  
just put piece of angle iron in the center of top panel and install everything like normal. They can't be any more flimsy than the old fiberglass units that I am still using, been going for more than 29 years.



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Jay (ND)

12-02-2006 06:46:41




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 Re: Garage door, anybody done this? in reply to RickL, 12-02-2006 06:15:28  
That's the way to go. Even good doors don't hurt to have this treatment.



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