CR-10 V3 Filament Sensor Mount

thingiverse

<h1>Problem</h1> The original 110mm tall runout sensor mount that came with my Ender CR-10 V3 was giving me a few issues: <ol> <li>The filament seemed to be binding</li> <li>The connector running from the sensor to the x carriage was pulled tight when the z-axis was homed</li> <li>The mount isn't thick enough where the mount interfaces with the extrusion. This is causing the bolts to bottom out on the extrusion before the t-nut is tight, leaving the mount wobbly.</li> </ol> <h1>Solution</h1> This bracket, although not a perfect solution, mounts the filament sensor parallel with the extrusion, giving these effects: <ol> <li>The angle that the filament feeds in is more natural and causes less binding</li> <li>Since the mount is 110mm lower, we gain that in cable length</li> <li> By increasing the material thickness of the mounting interface, the t-nut bolts no longer bottom out, giving us a firm mount to the extrusion</li> </ol> <h1>Issues with this Design</h1> Given that filament has a point where it will kink and since the new mount locates the fulcrum of the filament coming out of the sensor closer to the x-gantry, we lose some usable print height. I am working on a design to fix this by placing the sensor on a mount that can glide along the rail.