I created a filament guide for my Nophead Mendel90 printer to use with whatever in-line filter solution I wanted. This design doesn't require that you fasten the part to the frame, just stick it on there and secure with clips or similar. Remember, this is ment for the Nophead Mendel90 that uses a 3mm dibond frame. It measures 4.18mm distance spacing in Autodesk Maya. Enjoy.