V-slot mounted side-laying footpads for CR-10. Normally, you cannot lay the Cr-10 on it's side, because the x-axis tensioner sticks out. Bolt three of these footpads onto the side of your CR-10, and there will be enough clearance to lay it on it's side. I have not tested it on other printers, but it should work for any printer that uses v-slot extrusions (scale appropriately),