Hi everybody, I own a Robo for about 1 year now and I am still happy with it. But I always wondered how a delta may perform compared to standard printer with the three axis. Since I had some spare parts and unused components like an Arduino, a LCD controller, some motors and some small parts, I decided to built a small delta printer. I compared some of the available designs like the Cherry Pi, Thingystock, Kossel Mini and the Rostock Mini Pro, all of them are great, but finally I decided to go with the Rostock Mini Pro due to it's minimalistic design. Some weeks ago I started ordering the components and printing the parts on my Robo in parallel. During the built up phase, I found some points which I wanted to add over the original design like: - Add the LCD controller for standalone prints - Use a non geared extruder since I had a standard Nema17 - Add a heated bed (external power required) - Include the power supply in the base + cover plate Here is the result of my work: Still some updates to do: - Switch to magnetic joints for better precision - Control hotend fan to activate over 50°C (like at my Robo, I love this feature) - Add better cooling fan - Cover at the Ramps board But even now, print quality and speed is great, I love my small delta printer as well as my Robo Have a nice weekend!