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Re: Elevator Design
Quote:
Originally Posted by Cory
.... This picture shows you what's happening. The return cable is attached to the bottom of the carriage and then runs to a pulley at the base and then is taken up by the spool that the "up" cable is wound on.
McMaster has all the surgical tubing you'd need, but it's subpar as your force drops off as soon as you start lifting and the carriage will only be partially supported. Constant force springs are much better...... |
I was fortunate enough to be able to take some detailed pictures of 254's lift while in St. Louis in 2011. Here are some of the details I think should be noted:
Here is a picture of the rope run Cory mentioned. You can see both the lift and return runs. Up is on the left and lower on the right.
Here you can partially see the drive train for the lift. I'm sure someone can provide the details of this mechanism.
Here, on the left end of the lift spool, you can see the "counter balance" they used. It is a surgical tubing powered rope wound around a spool on the end of the lift spool.
And now the magic used to keep everything in alignment and still allow it to move freely.
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CalGames 2009 Autonomous Champion Award winner
Sacramento 2010 Creativity in Design winner, Sacramento 2010 Quarter finalist
2011 Sacramento Finalist, 2011 Madtown Engineering Inspiration Award.
2012 Sacramento Semi-Finals, 2012 Sacramento Innovation in Control Award, 2012 SVR Judges Award.
2012 CalGames Autonomous Challenge Award winner ($$$).
2014 2X Rockwell Automation: Innovation in Control Award (CVR and SAC). Curie Division Gracious Professionalism Award.
2014 Capital City Classic Winner AND Runner Up. Madtown Throwdown: Runner up.
2015 Innovation in Control Award, Sacramento.
2016 Chezy Champs Finalist, 2016 MTTD Finalist
Last edited by billbo911 : 20-06-2013 at 12:18.
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