pic: A Teacher's First Render
 

Re: pic: A Teacher's First Render
 

A square shaft? Can you change that to hex? More efficient with space and reduces stress concentrations (apparently).
Most likely for a brake/ winch.

Re: pic: A Teacher's First Render
 

::grins:: The square is required actually :)

Re: pic: A Teacher's First Render
 

My guess would have been that it's a translator for a limit switch, but that's just me taking a Rorschach test (my current project is a translator for a limit switch).

OK, by shaft do you mean that it rotates? The clue that the square is necessary implies that it engages with something that you're getting off the shelf, or perhaps off the field. I don't see how this would engage with litter or a tote, so I'm going to guess that it's something to engage the lip of a recycle container and tilt it for easier human player loading of litter.

Re: pic: A Teacher's First Render
 

Just want to applaud YOU, and stepping out of a comfort zone into this world and supporting kids. You're a rare person, your kids are lucky folks!

Re: pic: A Teacher's First Render
 

Thank you. When I started this journey five years ago, I had no idea what I was in for.

Re: pic: A Teacher's First Render
 

I gonna bet you were told something along the lines of "It's only six weeks"