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Recent content by fivechop

  1. fivechop

    Help with potential energy quandry

    Thanks again for the advice Mike, I think I will move forward with this design and see where it takes me, i'll post the end results later.
  2. fivechop

    Help with potential energy quandry

    @Mike Halloran. That sounds like a viable solution, and is similar to what I had in mind except I left out the torsion bar and instead had just a torsion spring system, I just wasn't sure how much force would be applied to the stairs on the return cycle. Is there a way I can latch the stairs in...
  3. fivechop

    Help with potential energy quandry

    @dhengr. What your referring to is a typical step used on heavy equip/ haul trucks, this ladder system was designed to eliminate that step and make an easier mounting process, the ladder system works great, but for reasons I can't mention the mine manager wants to replace the powered system...
  4. fivechop

    Help with potential energy quandry

    I like the idea of a counterbalance system but I was hoping to find something a little more rigid, I'm not sure how that would work on a piece of equipment that travels up to 30 mph through rough conditions.
  5. fivechop

    Help with potential energy quandry

    Try this link for the sketch @Desertfoxhttp://files.engineering.com/getfile.aspx?folder=c4471aa0-ffbc-40c9-8b1a-cdbf3877116a&file=untitled.bmp
  6. fivechop

    Help with potential energy quandry

    So far theese are good suggestions guys, thanks
  7. fivechop

    Help with potential energy quandry

    Ok ill copy and paste it from my computer
  8. fivechop

    Help with potential energy quandry

    Here is a link to a quick sketch, let me know if it doesn't work http://picture.vzw.com:80/mi/773703875_2749482369_0.jpeg?limitsize=345,345&outquality=56&ext=.jpg&border=2,0,0,0
  9. fivechop

    Help with potential energy quandry

    P.S I forgot to mention the platform is mounted on the front of a piece of mobile mining equipment
  10. fivechop

    Help with potential energy quandry

    Sure I can whip up a basic sceth for you, as for the exact masses of the stairs I would have to track down the exact weights and sizes, but a ball park figure would be, stairs are about 350 lbs and dimensions would be 8.5ft long 3 ft wide and side of the stringers are about 1 ft tall.
  11. fivechop

    Help with potential energy quandry

    Hi everyone, I have a problem to solve, imagine your standing on a platform 7 ft in the air and the only way to get to the ground is a stair stringer that raises and lowers in front of you rotating on an axis on the end of the platform on which you are standing. In the raised position the stair...

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