Homemade elevator from electric motor

[juliusjoe]

I want to make an elevator lift from an electric motor. The motor has a 42 mm shaft that turns at 1800 rpm. I want to lift approximately 200 pounds total twenty feet high, slowly and safely. I was hoping someone with knowledge of pulleys and gears could help me figure out what I need to accomplish this.

 

[Travis_King]

I assume this isn't for people, correct? As a) 200 lb does not provide nearly enough safety factor and b) Elevator operations which carry people require design certification and liability insurance, among other things.

 

[juliusjoe]

correct. this will be used for equipment and supplies only.