Optical Filament Runout Sensor Enclosure

thingiverse

This is an enclosure designed specifically to house an optical filament run-out sensor. The central section allows for some adjustment if the sensor comes poorly soldered and thus in the wrong position, as I encountered myself. You will need an M2 10mm bolt and nut to tighten the center adjustable piece, along with two small screws for securing the bottom cover. It is engineered to mount snugly into the Robo top slot. For detailed instructions on how to incorporate this upgrade into a Robo 3D R1, please visit: http://community.robo3d.com/index.php?threads/filament-runout-sensor-frs-upgrade-to-robo-r1-r1.17128/ 12/27/2016 A revised version 2 (all files with V2 in name) has been added. This updated design incorporates the through slot (remixed) that comes standard on the Robo R1, and the filament out sensor swivels atop this through slot. The guide holes utilize PTFE intended for 1.75 mm filament. The top piece is optional but necessary, while the bottom piece of PTFE inserts from within the adjuster piece and is approximately 4.5mm in length. Without it, you may likely experience false triggers due to a lack of centering points for the filament in the optical sensor. Conversely, the top piece of PTFE measures about 35mm in length but remains optional. This version necessitates an M2 12mm machine screw and an M2 insert (there was insufficient space for a nut). The insert is melted into the bottom of the adjuster, allowing it to be adjusted via the machine screw from above. I printed the lightGuide with t-Glase, resulting in a fairly effective light guide.