Modular Pulley System Block and Tackle

Simple Modular Pulley System Block and Tackle. I pulled 20kg but I haven't tested it to find the breaking point, yet. If you manage to pull more please share a comment, thanks!The end and middle plate are almost identical. The middle plate is just thinner as it is doubled to hold bearings on both sides. Materials:Skateboard bearings 22mm, 8mm axle8mm axle (80mm long for quadruple pulley like in pictures) 8mm nuts