LCD Smart Controller Panel Untether from your computer for troublefree printing. Ever had a print fail or stutter part way through, this could be caused by your USB connection to the printer/RAMPS timing out. The Smart control panel allows for "on-the-fly" adjustments and tweaks to speed/temp/steps of extruder and x y z . The case as pictured fits the smart controller perfectlyAll items are printed in ABS and screw holes are tapped, I have not tried tapping into PLA but it may work as well. I provided an optional STL without the my business name if you prefer ;) Vitamins (4) -3 x 25mm Socket Head Screws (4) -7mm piece of aquarium tubing or similar (1) - 3 x 10mm SH screw ASSY -Cut-away the thin layer around the kill switch for proper fit