Gearshifter Fidget

This small project makes a gear shifting fidget that you can scale up or down to fit into the cupholder of your car or to simply just hold and fidget with in your home!

3D Modeling: Onshape(any cad software works)

3D Printer

Create a flat circle, if you want you can measure the size of your cupholder and then size it according to that to fidget with while you drive if you have an automatic.

Project a spiral onto the circle and extrude remove to create a hole for the base. This will be what allows the shifter to be able to move around. For how I created the spiral I created a conical shape and then wrapped a helix around the conical shape. After creating that helix I would edit in context to project a sketch of the helix to create it. Another option of making it would be to simply just draw one which I should have done.

In the middle of the circle create a rod going straight up. This is going to be the shifter itself. I recommend making the base of the rod a little wider for extra support so the rod doesn't snap off during heavy use.

By creating two smaller circles from the bottom of the box, you can extrude them upwards to create your wall

Based off of the diameter of the bottom of the box, you can create a gear pattern of your own choosing, for me, I decided to go with a basic 5 speed design.

To create this knob you can create a half circle and then revolve it around 360 degrees. Afterwards you can create a circle from the origin point of the sphere and then extrude it outwards to create the hole that will fit into the rod of the gear shifter.

Once you're done with all of that you can print out everything and then glue it all together to get yourself a working gear shifting fidget!