GM/Pontiac Replacement AC Knob

prusaprinters

Printable replacement AC knob for late 90's early 2000's GM vehicles. The AC knobs in late 90's early 2000's GM vehicles (especially the Pontiac Grand Ams) are known for breaking in the center when the plastic gets brittle, I modeled this knob to replace it since new ones were $20 a pop at the time. They are fairly durable, the ones I printed and put in my car are almost 10 years old now (2015) and have never broken. Disclaimer: This AC knob may not fit your car even though I specified late 90's early 2000's   GM vehicles. I specifically designed it for my 1999 Pontiac Grand Am, so if your car uses the same knob as that it will definitely fit. This knob also does not have the stops for the fan level control, so it is possible to move too far forward and too far back if you use it to replace the fan control knob like I did.Supports are needed for the front and back bits of the knob that hang above the circular piece, but the center does not need supports and should be fine with normal bridging.