"Hey why not use it as a Ladder or even Scaffolding?!Afew adjustments, and it could be used for any kind of indoor or outdoor Construction or Restoration activity,,,Just Imagine it moving in yet another axis,,, Having a place for supplies, and a Single worker can Render any wall in 2 dimension efficientlly.  Painters and Artists, can paint walls as efficient as a plotters, and so on,,,There would be no need for exhausting process of climbing up and down just to replace, elevate or adjust ladders and old scaffoldings,,,"