Elevator/pulley help!!

[patel9825]

I am a part of a rookie team and need help with a design for an elevator/pulley that can lift about 60-70 lbs?

Our team has thought about something like this:
https://onedrive.live.com/redir?resid=E8027343F075A128!47593&authkey=!ALyu14PC8pKaqpc&v=3&ithint=photo%2cjpg

I would like to know whether this design is realistic and where I can improve? I would also appreciate any recommendation on what to use for the motor without burning it, as well as, the material for the cable.

Thank You,
Team 4939, AllSpark9

[RunawayEngineer]

Adam Heard has some videos about Elevator Design among other things in this Video Playlist (http://www.youtube.com/playlist?list=UUX0Y091TMRKi8PqNfYoImiw)

This video (http://youtu.be/3cRS7TF2KM8?list=UUX0Y091TMRKi8PqNfYoImiw) goes through a lot of the math involved.

Also - be on the lookout for the Robot in 3 Days Videos (https://www.youtube.com/channel/UCgtwgUTTxuldvAGW1u8SDSA).
Several of the teams have already demonstrated some elevator designs that could start you on the right path.

I hope that helps.

[patel9825]

thank you for that help...I really appreciate it.