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  1. Wolberto

    Force calculation Scissor lift retractable Chimney

    @MacGyverS2000, Yes, I understand that. I used this site to calculate the reaction forces in the lowest arms: https://www.engineersedge.com/mechanics_machines/scissor-lift.htm My assumption was that I could just sum up weights 1,2 and 3, but I am not sure. Then I drew the diagrams of the...
  2. Wolberto

    Force calculation Scissor lift retractable Chimney

    @BAretired, The chimney will discharge the fumes produced by a backup heating system and will only be used less then 500 hours per year. The Chimney has to be 7 meters to have an high enough dilution factor. The chimney has te retract to about 2,5 meters to be out of sight when the backup...
  3. Wolberto

    Force calculation Scissor lift retractable Chimney

    Hello, For an internship I and a fellow student are designing a retractable chimney. For the mechanism to retract the chimney, we chose a scissor mechanism. We already drew a large part of the chimney in solidworks and know we want to calculate the reaction forces and internal forces that are...

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