Anet Nozzle Cleaning Brush Mount

thingiverse

I wanted a budget-friendly solution to implement the nozzle clean feature of Marlin/Skynet. I had tried using felt like the ones used in the Taz, but it just wasn't holding up well. I found a cheap brass brush at Harbor Freight and designed a mount for it that makes changing the brush head easy. This is ideal for auto-level setups, and adjusting the springs will adjust the height of the brush. It can be done as long as the Z-stop is adjusted so only the bristles protrude past the bed. Update: 05/31/17 I've added two variants of the Brush Mount as the original was designed for 5mm glass beds. There are now a -2mm for 3mm glass beds and a -5mm for those using inductive sensors and printing on aluminum beds. Update: 06/01/17 Fixed Brush Mount -5MM - the mounting holes didn't go all the way through the mount Video here: https://youtu.be/Zb9W94K1ciM The pieces slide together fairly tightly. I added M5 square nuts and an M5x10 button head screw to lock them in place, but this is probably not necessary. You will need two slightly longer M4 screws to mount it to the H-frame. What you'll need: * A Harbor Freight brass brush (https://www.harborfreight.com/1-3-8-eighth-inch-x-7-inch-brass-detail-brush-40441.html) * Print the three pieces: Brush Shell, Brush Bottom, and Brush Mount * Two slightly longer M4 screws * M5 square nut (optional) * M5x10 button head socket screw (optional) * Marlin or Skynet To set up: //#define NOZZLE_CLEAN_FEATURE <------------ uncomment this line by removing the // #if ENABLED(NOZZLE_CLEAN_FEATURE) #define NOZZLE_CLEAN_STROKES 12 #define NOZZLE_CLEAN_TRIANGLES 5 #define NOZZLE_CLEAN_START_POINT { -17, 122, (Z_MIN_POS + 1.5)} #define NOZZLE_CLEAN_END_POINT {-9, 152, (Z_MIN_POS + 1.5)} Set up your starting and ending positions for the brush by jogging to the bottom left corner and lowering your nozzle until it's at a height you like. Take note of these coordinates, then jog to the top right corner and do the same. Input those numbers above. Now just add the G12 command to your start code: I used G12 P1 S2 T7. P is pattern (0 is straight lines, 1 is triangles, and 2 is circles), S are how many strokes, and T is how many triangles within the cleaning perimeter. G28; Home All G12 P1 S2 T7; Clean Nozzle G29; Auto level