The crane idea would need two folks to run, one on top, one below.

The attraction of the lead screw is that if/when something fails;
it will not plummet as a broken cable lift would.

I agree the umph of most door openers, but how much CAN they lift?

With the pipe, I think I could anchor it with a arm from the house; that would
provide some stability.

We have a good supply of thickwall ~1.5" sq tube, as seen on stuff here http://2.ly/p9sp
I seem to recall a long length of it; but how would the scuttle be built
to slide along it?


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