What is The Solid School?
The Solid School is a platform for people who want to build their own business using 3D printing.
We show step by step how to develop products using a 3D printer, sell them online, and build a profitable business from it.
We share our own experiences from several years in the 3D printing business – from product selection and production to online sales and marketing.
Why is the course free?
The Starter Guide is our entry point for anyone interested in a 3D printing business.
We want to demonstrate, free of charge, how the business model basically works and how to launch your first product online.
For those who want to further expand their 3D printing business, we have already planned additional content, courses and even a 3D printing community.
More information will follow shortly via email.
When will I receive the guide?
The Starter Guide is currently still in production.
If you sign up for the waiting list, you will automatically receive an email as soon as the guide is published.
This means you are among the first people to receive access to the free guide.
Expected release: April 2026
Do I need a 3D printer?
Yes – to start a 3D printing business, you obviously need a 3D printer.
In the guide we also show you which machines are particularly suitable for beginners and what you should pay attention to when buying one.
Many successful salespeople start with a single printer.
A simple starter setup starts from just €200 - including printer and materials for initial products.
How much does it cost to get started?
A simple 3D printing setup can be started from as little as €200.
An entry-level printer, some materials and basic accessories are sufficient to test the first products.
The advantage of a 3D printing business is that you usually only produce your products when an order is received – so you don't need a large warehouse or high start-up investments.
How much can you earn with that?
That depends heavily on your products, your niche, and your commitment.
Many people earn an additional side income with 3D-printed products, while others build a full-fledged business from it.
Getting started is extremely easy - there are no limits to potential profits.
In the Starter Guide, we show you how the business model works and what factors determine whether a product is profitable.