Anet A8 Spool holder with filament sensor

thingiverse

A spool holder for the Anet A8 with a filament sensor is what you're looking to create.\r\n\r\nIn addition to the printed parts, an 8mm rod will be necessary.\r\nThe spool holder is mounted securely between the upper frame and the LCD panel.\r\n\r\nTo build a sensor version of this project, several additional components are required:\r\n- A Raspberry Pi running OctoPi (https://octoprint.org/) is needed.\r\n- 4mm Teflon tubing will also be necessary.\r\n- A mechanical end stop, such as the KW11-32 or any other similar end stop with a roller, is required.\r\n- A 2-wire cable to connect the switch to the RaspberryPi GPIO:\r\n COM to pin 6 (ground), NC to pin 7 (GPIO4)\r\n can be checked for functionality via SSH client: login and use command: GPIO read 7).\r\n- The "Filament sensor reloaded" plugin must be installed and configured in Octoprint (see picture and https://github.com/kontakt/Octoprint-Filament-Reloaded ).\r\n- If the switch is not working properly, the roller arm can be adjusted by carefully bending it a bit.\r\n\r\nInitially, I tried using an optical sensor but found that 1.75 mm filament is too thin to block the sensor enough (even with a printed aperture or if the sensor I had was not sensitive enough). Also, an optical sensor will not work with transparent filament, so I abandoned the idea.\r\n\r\nAddition: A fancy spool spindle with bearings has been designed. In addition to the 8 mm rod, 2 bearings (26 x 10 x 8mm) will be necessary for this.