Aww, King, diMarko - you guys! You're being silly. Dumb-bells and Orreries! As if a series of lenses aligned in series could become either of those. You jest, I am certain.
As for borgar - you sir are a genius.
BTW, I always strive to have my scratchbuilds in a more 'working' form than the official kits. Like how does an Ironblaster reload? Mine has a platform for the gnoblar to scurry around. And my scraplauncher actually worked - until I stained the wood and it seized up. This one was inspired by an illustration from a book about historical scientific instruments to have a screw allowing one of the lenses to move, thus to change the focus. I like my magic 'low'. I like my magical artefacts to look like they need 'natural philosophy' and engineering alongside to achieve an effect.