[irrational]

Now that you've learned how to do this in the class, how feasible would it be to do at home? It seems like the grinder would be the most difficult part to replicate at home. I imagine a woodworking router with some sort of diamond grinder bit couldn't be used since I think you said it has water running on the bit.

[joshmillard]

Totally feasible! You could probably put a whole one-person workspace into about fifty square feet without getting cramped, less with some squeezing and multitasking, and I'd guess basic toolset would run you less than $500 retail.

The grinder I used is a pretty simple unit with a water reservoir tray under the grill that keeps the bit wet via a sponge feeder; probably about $100 new, used bargains if you go looking, but, yeah, water feed of some sort is key to the grinding working well on glass.