Lack Caster Wheel Blocks

I made these to fit some caster/wheels I had laying around that I never installed on other sets of furniture. They are meant for the single screw/bolt type of wheel; they're identical to this set: Dalyndar 4 Pack 1.5 Inch Swivel Stem Caster Wheels Replacement Casters 1.5'' Furniture Wheel with Locking Brake Metric Threaded Stem M8 Wheels for Table Drawer Plant Shelf Metal Rack Laundry Basket: Amazon.com: Industrial & ScientificI made this a lot sturdier than some would argue it needs to be, but I have several stacked lack tables and they hold pricy printers--worth it to just make them stronger. The hole in the center is just a tad over 8mm to accommodate for shrinkage in filament, but you can make this smaller or larger depending on your application. I did add a metal washer in-between the wheel itself and the block to have a larger contact area.The project file says an 5hr (PLA) 8hr (PETG) print time because of the walls and infill I chose, but you can always cut that down