Bracket for Kobra Filament Runout (Break) Sensor

prusaprinters

<p>The reason I designed this is because in my opinion the way its shown to be mounted on the Anycubic Support YouTube channel, is janky at best and very unstable, considering they just have it hanging on one screw blowing in the wind. These designs are significantly more stable than Anycubic’s alternative. &nbsp;</p><p>After talking with “bigdaddymac” in the comments and hearing they were having an issue with the second screw I altered my original design into three versions that should address any issues with stability.</p><p><strong>Version 1:</strong> The original design which completely stabilizes the runout sensor with your Kobra. For this design you will need an M3 x 18mm screw on top of the hardware sent with the filament runout sensor. The M3 screw hole is purposefully tight so that the screw threads the hole and no other nuts are needed.</p><p><strong>Version2:</strong> The original design but without the M3 screw hole if you just want to try it to see the difference without that added support. For this I suggest keeping the original hardware a bit loose while still connected so that the sensor can more left and right.</p><p><strong>Version 3:</strong> A pared down version of the original design without the M3 screw or back-plate for the sensor. This should allow free movement of the sensor while still maintaining a bit of support with the part that clips around the filament arm on the Kobra.</p><p>All of these were designed to be printed from PLA at .2 resolution with 20% fill, it does not need anything stronger than that, however I would not print it at a lower resolution considering the hexagonal insert for the screw adaptor they send is quite small and does need that hexagonal shape to actually be hexagonal.</p><p>See the pictures for the assembly of the bracket and sensor, all the brackets are assembled the same way just with lesser and lesser parts. After the bracket is attached to the sensor, you just need to hook the bracket onto the arm and use the lock nut provided by Anycubic to attach it to the filament arm. If you have any issues screwing the long screw into the hexagonal brass extension, take the brass extension out of the bracket, turn it one facet and re-insert it, the threads just need to match up, I promise, it screws all the way in. Lastly, the filament sensor negates the need for a filament guide as it feeds the filament straight down.</p><p>*I will update the file if I find something wrong with it or something happens that needs fixing and will put any of those updates below this sentence. Thank you for trusting me with your print.</p><p>Updated Aug 1 2022: More versions added addressing concerns it wasn't allowing for free movement of the sensor.</p><p>--</p><p>Print with a 5mm brim and tree supports for best results at nothing under .2 resolution to maintain the hexagonal shape for the brass screw extender.</p>