I upgraded to a touchscreen that work a bit better that the one that comes with the Robo C2. I added a 7 inch 800 x 480 capacative touchscreen. The upgrade does not require any changes to the Robo C2 case just the removal of hardware and the addition of new hardware. The beauty for this is you can always restore the printer back to the way it came from the factory. You have to print a display mounting assembly that will mount to the existing display mount of the printer. To gain access to the display and cables pull off the printer front black bezel, start at the top and gently pull off. Try this at your own risk. I take no responsibility if you have any issue. It worked on my printer for me. What is required. 1. Element14 7” touchscreen. https://www.element14.com/community/docs/DOC-78156/l/raspberry-pi-7-touchscreen-display 2. MCM SmartiPi Touch Case http://www.mcmelectronics.com/product/SMARTICASE-SMTNL-/83-17628 3. 12” to 18” 15 pin Raspberry Pi flat ribbon camera cable. 4. 4 x M4x10 screws 5. 4 x M4 lock washers 6. 3D Print of the usb mount faceplate (see below) 7. 3D Print of the mount assembly (see below) 8. Need to create 4 longer wires with single pin connectors at each end. Got mine from old computer case. 9. 2 pin connector (Need this for the Z-stop switch. You have to carefully remove the two wires and their pin connections from the factory display cable and place them in the two pin connector. I have made an image file to download; it took a lot of searching and couple of hours of loading. I would suggest getting a new SD drive 16GB and load the image to that SD card and replace you r SD in the printer with the new one. That will also give you a backup SD of the original image. Image Download: https://drive.google.com/file/d/0B51PXhcn1zZPcnNiTFN1Qnk3RWc/view?usp=sharing Here are the part files I printed. USB mount faceplate. Pull the faceplate off of the MCM SmartiPi Touch Case and glue on the printed USB mount faceplate. STL File Download: https://drive.google.com/file/d/0B51PXhcn1zZPVEotdlJaYUVmaU0/view?usp=sharing Step File Download: https://drive.google.com/file/d/0B51PXhcn1zZPLWhtQ2E1bjdfckE/view?usp=sharing This images shows the back of the case with the USB mount faceplate "shown on the right" and the Display mount assembly screwed down. You will have to remove some material from the back of the case to fir in the USB mount faceplate and USB connector. I use a dremel with grinding tool to remove the material. Display mount assembly. STL File Downloads: https://drive.google.com/file/d/0B51PXhcn1zZPaEtZMjh6Z3NqT2c/view?usp=sharing https://drive.google.com/file/d/0B51PXhcn1zZPZUhQOEV2aXgzc2s/view?usp=sharing https://drive.google.com/file/d/0B51PXhcn1zZPWFc5bzhZVlRxWEE/view?usp=sharing Step File Download: https://drive.google.com/file/d/0B51PXhcn1zZPbGpWaXkyaUdsNVk/view?usp=sharing Three parts glue together. Good luck, I’m enjoying this upgrade.