When I use sandpaper (200+) it is to get a glating surface or to break the edges. You can’t grind yourself out of burns or running sod without going beyond the product tolerances, I won’t be able to assemble my lamps without glue, as I always do, if I had to grind. I also don’t have time for this kind of finishing.
NB. You also cannot grind 0.6 or 0.8mm without it being seen when the light in my lamps is turned on.
I use minimum airflow, no more air is needed at 3mm plywood.
I like the novelty of using ball bearings, but I don’t see the win over “punk spikes” screwed to magnets. I don’t think I’ve ever seen a reflected mark since I’ve gone this route.
