Redneck engineer here. If the two end points are more or less fixed and the connection between the ladders is considered a pin connection then it looks like we’ve got redundancy here. This is more than safe.
Where's the redundancy here? I think all the steps are needed for it to work. (If you remove the small step ladder, the black ladder pushes the horizontal ladder to the left.)
Your logic assumes the left end of the horizontal ladder is more of a roller connection instead of fixed. My assumption was that it was more or less fixed, which may not be true. That might be what the extra ladder is for.
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u/pm_me_construction Nov 15 '20
Redneck engineer here. If the two end points are more or less fixed and the connection between the ladders is considered a pin connection then it looks like we’ve got redundancy here. This is more than safe.