Summary After print papinist's filament guide (http://www.thingiverse.com/thing:1764285) I designed this with a separation of 4,9mm to fit the LCD wall (see picture). Also, it doesn't have a hole to put the filament (you have to put it before start) because it kept going out. Print Settings Printer Brand: Prusa Printer: Prusa Steel Rafts: Doesn't Matter Supports: Yes Resolution: 0.2 Infill: 30 How I Designed This Designed with FreeCad