I downloaded the multi-board plates and knew I was on my own for items to push fit/screw in as the ones they made just didn't work. This item is one I use to hold dremel sanding pads/discs. I made it to where it can hold12 different sizes of pads/discs and quite a bit of each one in each spot. How many varies by your individual brand thickness and the grits thickness. I did 15% infill with PLA silk filament but any filament will work.