I like to make good 3D models. Maybe someday I finally will.
Sorry, I make a lot of dad jokes.
At the risk of driving people crazy, I became revved up and obsessed with designing the perfect gear shift knob for a manual transmission. Unfortunately, I stalled a few times, and made numerous prototypes that might work in a clutch, but I still haven't gotten a handle on making the perfect 3D printed shifter knob.
Nevertheless, I will be uploading different designs. I am happy to use different size threadings upon request.
Note: These are NOT for use on any actual motor vehicle, They are for decoration only. Although they are threaded to fit a stick shifter, use threaded rod from somewhere else to mount the shifter onto. Using it on an actual car gear sift shaft might require hot glue as part of the adhesion process, along with plumber's tape and other products one might experiment with, but I can only recommend the shifters I design for office decor, bar decor, etc.
I am including the sat file so that you can adjust it in programs that can edit that type of file.