Ah, I see: when you say "new standing desk appears", you mean that a nice new clear work surface appears. Gotcha.
"Standing desks" good: I have a jeweler's workbench I salvaged from an antique store and restored. It was used by a watch repair person (the drawers were full of little bitty watch parts). It's higher than a normal table surface (38" above floor) so when you sit at it the work is closer to eye level; more comfortable since you aren't so hunched over. So it's kind of a sitting standing desk.
I can see some refinements to your setup. Maybe not the mechanical sweeper arm, but how about a chute for the contents of the tabletop so you could just sweep everything into one of your jars?
And for a higher-tech feature, you could station a digital camera up over the work surface so you could take a picture of your project parts before you sweep them away, then later recall that picture to see what and where everything was.
But nah, it's fine the way it is.