ERB - Side-Load-Filament Guide and Sensor Switch

thingiverse

ERB - Side-Load-Filament Guide and Filament Sensor Switch Note: This post will be UPDATED as more information becomes available. I created a "Side Load Filament Switch" and "Filament Guide" for my Ender 3 and CR-10 using Fusion 360. The following design should work for most Creality 3D Printers, but it has only been tested on an Ender 3 and CR-10. This design should be compatible with newer 3D printer software. I am using it with a simple battery and buzzer setup. Advantages: * Side Load Filament * Extremely Low Drag * The switch can be bypassed by routing filament without engaging the switch Required Hardware or Similar: * Fender Washer: M3x15mm * Hex Socket Screw: M3x16mm * Micro Switch - https://www.amazon.com/gp/product/B07PPPZD4R * Wheel, U Groove Track Roller - https://www.amazon.com/gp/product/B079GWHLYN Rotate the STL as necessary to print the wheel post upwards. Print Time is approximately 1.5 hours. The Print Parameters I used were: * Layer Height: 0.2mm * Perimeters: 3 * Top and Bottom Layers: 3 * Fill: Triangles at 30% Supports: * Print on Platten Only * Print Supports at 45 degrees Planned Enhancements: * Add filament Over Tension monitoring [EDIT] See: https://www.thingiverse.com/thing:3711900 Depending on your 3D printer, the hole for the switch may need to be enlarged (filed), and the wheel post is also snug, it may need to be shaved. My wheel and switch fit very snug. Note: After soldering wires to the switch, insert the switch from the top, gently push down until it is slightly above (0.2mm) of the provided hole. Check the switch with a piece of filament for proper operation. Then epoxy the switch in place from the back (around the soldered wires). I use short wires with end connectors to attach to the external monitoring device.