fox 40 knobs

thingiverse

You can find the STL to print and replace both knobs of a Fox 40. I recommend using silk filament for better looks. To assemble the air cap, guide it through the first part of the thread. If you have a printer that's more advanced than mine, you might not need any special care. I've included some images for laser engraving, but keep in mind that I didn't get good results with my color. Don't make the same mistake: never engrave PLA indoors! Have fun printing and customizing your Fox 40.