This clamp fits snugly on the front top of an Ultimaker 2. You can mount the GoPro camera on the side as well as on the top of the Ultimaker 2. The clamp slides smoothly across the printer in order to orientate the camera.Print is as orientated. Use support for the two GoPro brackets. Printing at 0,2mm PLA 50% infill gives an excellent and solid result. When mounting the clamp lower it vertically down onto the upper front rim of the Ultimaker 2.