WE scar Open Bolt Nozzle (Front)

thingiverse

The nozzle of my WE Scar - open bolt failed when I saw the price tag on a simple piece of plastic. At that point, I decided to design and build my own one. An eBay piece serves as reference. This project is still in progress, but I highly recommend using the following configuration: no supports in ABS, use a small skirt, make sure to use little ventilation, the area is small, so it tends to suffer from the heat of the hotend in my printer (Printrbot Simple Metal). There's a hole in the lower part of the piece that's designed to grab the spring that holds the whole thing together.