Anti-Carbonize-Guard for K8400 Hotend

thingiverse

During Lifetime, my K8400 started accumulating an excessive amount of burnt Filament, which turned black and sometimes came into contact with the print, resulting in an unappealing outcome. I decided to design a Kapton Guard for my hotend as I discovered that Filament sticks very poorly to Kapton but can be removed quite easily from this material. Ingredients: A piece of Kapton Tape (I have plenty on hand since it also serves for the heatbed) A sheet of Baking Paper Super Glue A paper printer Instructions: Use Super Glue on the edges of an A4 Paper and attach it to the Baking Paper, allowing it to set while you apply pressure with something heavy. Then cut off any excess baking paper so that you can insert the A4 sheet into the printer. Print the provided PDF File onto the Baking paper now, being cautious as the Toner does not adhere well to this material. Verify whether your hotend is right-handed or left-handed and select the corresponding template, but make sure to follow the guidelines. Next, stick a piece of Kapton Tape onto the Template and cut it out with scissors. The Hole for the Nozzle can best be cut with a Stanley Cutter, but ensure that it is sharp. Then carefully remove the Kapton Tape from the Baking paper without causing any damage. To attach the Kapton Tape to the Hotend, I recommend unmounting it from the printer and possibly cleaning it of burnt plastic as well. Also, remove the small M3x8 Screw for now. Then carefully stick the Kapton to the Hotend starting with the Bottom layer, using the Nozzle and dotted lines as references for alignment. That's it. Then assemble the nozzle again, and you should experience a better print quality from now on.