Ender 3 Pro Nozzle Cleaner M5 & Brush Cutout

thingiverse

Modified the original to cutout the brush holder portion and change it to M5 screws. Original description from creator below. ########################## ########################## ########################## Ender3NozzleCleaner Easy and automatic nozzle cleaning for and Ender 3 Pro with an inexpensive brush. I recommend looking up information on the https://github.com/renatobo/Ender3NozzleCleaner repository. PETG is quite stringy and having strings of filament on your first layer is quite annoying. To avoid babysitting each print, I looked at a couple of designs on thingiverse but none really worked well for an Ender 3 Pro. What you need Cheap brass brush - in this design I used a sub-1$ one from Harbor Freight 2 or 3 M1.7 screws (or equivalent very small and short screws) T-Nut (you can 3d print this M3 Tnut ) Brush support How-to 3d print brush support (both STL and Fusion360 files are provided) 3d print Tnuts (or buy/reuse other ones) Cut away the brush handle: keep the part where the brass brush is Extend limits of your printer: in my case, I found that I can safely extend X to 248 mm Write a sequence of Gcode commands that moves the head back and forth (see examples at https://github.com/renatobo/Ender3NozzleCleaner ) End result In action: Overall Closeup Tip: Klipper Macro for G12 A good option is to define the cleaning code as G12 and use a macro in klipper. See code at g12_macro_klipper.cfg Tip: mounting the support The support it works best when the display is removed. If the display is not removed, you need to offset Z commands upwards in the examples provided. Tip: extending printer bed size I use Klipper and I simply modified the printer.cfg file to account for a larger X dimension [stepper_x] #... position_endstop: 0 position_max: 248