Faberware HF-919B Replacement Timer Knob

thingiverse

Replacement knob for the Faberware Air Fryer - Model #HF-919B I originally looked for a replacement online, and the only thing I saw is someone selling one on ebay that was 3d printed for $15. So I figured why not make my own, make it strong, and make it available to others. The original knob for the timer on this fryer is pretty flimsy on the underneath shaft. It works fine starting the timer, but if you want to turn it counterclockwise to run out the timer, and turn the fryer off, it takes more force. Which then causes the shaft of the knob to break. This is a no frills replacement that has thicker walls on the shaft part. If your printer tolerances are off, or the shaft of the new printer knob is too tight pushing down on the rod of the air fryer, just grab a 4/16 bit (or a 6.3mm or 6.4mm metric bit). CAREFULLY use a drill to make the inner hole of the underneath shaft bigger. Be sure to not go too deep. I recommend if you can do it with your slicer, set it to slice the top of the knob up until the shaft that protrudes at 15% infill, but do the shaft at 100% infill. If you can't do this just do it all at 100%. You want the shaft as strong as possible. I recommend black filament, or paint it black. Add a little white paint to the notch on the top to make the timer mark easier to see.