Recent content by bpcobra

1. Lack of reversing if the door hits an obstruction. It only reverses if the light is tripped or it can be set up with a pressure sensitive strip under the door, but not both. I think the light is more beneficial since I'd rather avoid hitting a person or car than reverse after contact. 2...

This seems to be a very difficult problem for most all garage installers. I have the exact same setup as you and it turned out to be a pain. They were able to do two curved sections however the middle straight section is only 20 degrees rather than the roof's 45. Why they did that I don't...

It wouldn't be cobbled together. It would be an off the shelf setup which comes with an extra gear reduction set for more torque at the jackshaft. I think that the Liftmaster MJ is going to be the way to go which is what Liftmaster customer support also recommended. I have reservations about...

What about using an additional set of gears such as the sheet door set for the 3950? That would give a good increase in lifting force.

The square footage of the door should have nothing to do with how well it can open. It should be the how well the door is balanced since the opener has to make up the difference between the weight of the door and the spring force. The door will remain up and there is a spot where it stop in...

I need a jackshaft opener for a high lift 8x16 wooden door. The horizontal rails are about 11 feet off the ground. The vertical section is about 9 feet high. The ceiling is vaulted so there is a 4 foot long, 25 degree sloped up rail between the vertical and horizontal sections. The door is...