Built from the Ground Up.
The story of Rau Studio — started creating products out of a dorm room.
It started with a 3D printer in a dorm room.
In 2020, Aaron co-founded a small product company in Germany. It started as a side project during university — making modular wallets, learning manufacturing, figuring things out along the way.
Then it was time for something new.
After four years of building, Aaron sold the company and took some time off. Traveled, reset, Now he's starting fresh — a small design studio focused on thoughtfully engineered products.
Started making products in a dorm room with a 3D printer.
The side project grew. Built a small factory, learned CNC milling and industrial 3D printing.
Small team, good products. Things were going well.
Sold the company. Took time to travel and think.
Founded Rau Studio.
Launched Coinbook. The first of hopefully many.
Steel that remembers.
Coinbook is an indestructible stainless steel device for storing seed phrases and critical data. Every detail — from the stamping jig to the packaging — was prototyped, tested, and iterated by hand.
Always making something.
Coinbook is the first product, but there's more in the works. Different categories, same approach — make something you'd actually want to own.
Lighting
SLS-printed lamp — exploring what industrial manufacturing can do for everyday objects.
A handheld game device. Still early — breadboards, buttons, and tiny screens.
3D Printing
Quick ideas, fast prototypes. From fidget toys to functional parts.
Industrial Design
CAD modeling, rapid prototyping, functional objects.
Making Things
Laser cutting, 3D printing, CNC — whatever the project needs.
