All the data I have is just measurements I've taken of different brands and sizes of racks as a basis for my 3D models. I don't have anything proprietary. I've also measured dimensions of different chips and stacks. I'm happy to share what I have, but it's not rocket science, just time spent with a caliper and racks and chips. For instance, my BCC Samurai Palace chips are about 39.5mm in diameter, and I sized my racks at a 39.8mm diameter for the rows to hold them better so that they sit flat on the bottom and don't get pinched on the sides. The 8V China Clay chips that ABC sold off are almost 40mm in diameter. 43mm Paulsons really are 43mm in diameter. And so on.