ThumbRocker comes from the old saying,
"Necessity is the mother of invention".
I've always planted my thumb on top of my pickup. That's just the way I play. There never seems to be enough real estate on top of there to keep my thumb happy.
I've been a design engineer my whole working life. Recently I received a 3D printer as a gift for my birthday. So, with a combination of, a problem, the design skill to solve it, and a 3D printer, ThumbRocker was born. The name "ThumbRocker" was coined by my grandson, Davy!
Using CAD design software for our design, allows us to optimize our products for our customers applications.
Using 3D printing as our method of manufacturing allows changes to be made quickly, as well as offering many materials and colors to be offered.