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Re: forklift system trouble!
Most lifts are of two types CASCADE or CONTINUOUS and they are moved up and down with a cable or in some cases a chain...
They are not real difficult to undertake but do require some calculations to determine the tension in the cables because it is not as straight forward as you might think.
We are making ours out of square aluminum extrusion...with chain for the bottom section and a cascade cabling system for the top three sections.
Send me an IM with your email and I can send you a workshop set of slides about mechanisms that might give you some ideas...
We will use two 550 motors with a transmission and a chain reduction to power ours up and down.
Remember you must (if you want it to work well) Power the lift UP AND DOWN...
Friction is a killer as well as racking concerns.
We actually made a lift in 2008 out of a ladder but wouldn't recommend it... (too heavy)
Make the upper sections lighter than the lowers if possible... and keep everything that is moving as LIGHT as possible...
let me know if I can help more..
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