Honeycomb Bed Standoff with Magnets

I do a lot of laser engraving work with wood for my wife's business and with designs that have a lot of intricate cuts near each other, soot and flashback is an issue.   I'd read that raising your material slightly above the bed would reduce that and the only standoff similar to that I'd seen required that you screw down a piece to hold it in place.   I simply wanted a small ledge to place the boards on, so I designed this.   It can sit freely on your laser bed, or you can add magnets - I designed this to use some inexpensive 0.67" rare earth magnets from Amazon (Neosmuk Magnetic Hooks) that are typically used for cruisers to take and hang things on the metal walls.