Ender 3 Glass Bed Corner Brush Holder

prusaprinters

Wanted to have a way to clean the nozzle before the printout as there's times where the nozzle is pretty dirty. I decided to have it in the front of the bed as the nozzle would be able reach that. Instead of making a separate piece, I added it to one of the corner holders. I used the brushes from the local HomeDepot (https://www.homedepot.com/p/HDX-Brass-Mini-Brushes-3-Pack-BMB3-HDX/206453088) as I already had some on hand and can always get more if needed. Currently, I mounted it on the left side of the bed, but I also added a right side as I might move it there. I also marked this as work-in-progress as I haven't had the chance to upload the changes to my firmware to add the G12 command to my start gcode. Added pictures of the brush mounted on the right side. I actually rather have the brush on the right side as so it doesn't get in the way of homing. Added a video with the G12 P1 command. I had set in marlin to do 2 passes and return to the previous point. Post-Printing Marlin firmware changes to enable G12 to clean nozzle In Marlin 1.1.9, there's a section on Configuration.h that enables the G12 command to clean the nozzle. (See http://marlinfw.org/docs/gcode/G012.html for more info) I made the following changes in Configuration.h to work for me with the brush on the left side (you'll have to tweak/modify the numbers to your liking/configuration): uncomment this line: define NOZZLE_CLEAN_FEATURE I recommend turning this on as it'll return to where the nozzle was before the G12 command was executed define NOZZLE_CLEAN_GOBACK Modify/Tweak the numbers to you liking: define NOZZLE_CLEAN_STROKES 2 define NOZZLE_CLEAN_TRIANGLES 4 define NOZZLE_CLEAN_START_POINT { 200, 0, 11.5} define NOZZLE_CLEAN_END_POINT { 225, 4, 11.5} "G12 P1" gcode command with NOZZLE_CLEAN_GOBACK enabled Category: 3D Printer Accessories