Saturday, April 24, 2010
The power for the Laddervator comes from a Warn Industries 68500 PullzAll 110 AC corded electric winch. It has forward and reverse motion and variable speed - great for fine control. There is a battery model available -- but I felt more comfortable with the grid behind me! It locks when the power is removed - a great safety feature, especially if the platform is at the top of the ladder. It's rated for 1,000 lbs - far more than I'll need. It comes wound with 15ft of 7/32" wire rope.
For the prototype its attached to the ladder with a couple of climbing slings and caribenas. The production model will hold the winch to the ladder with a custom bracket.
Here's the whole thing in action:
Since I strongly believe that the production version will not be bolted together but will be welded I took a MIG welding class at Tech Shop in Palo Alto. Informative, fun and no burnt fingers!