10-Year-Old Boy Builds Microfactory in His Room with 3D Printer, Learns Everything on YouTube, and Already Earns R$ 10,000

Written by Romário Pereira de Carvalho

Published on 24/10/2025 at 08:45

Imagem: Jacob Heitmann

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At Just 10 Years Old, American Jacob Heitmann Turned His Room Into A Micro Factory With 3D Printers, Earns Over US$ 1.7K, And Plans To Launch His Own Line Of Custom Toys

At just 10 years old, American Jacob Heitmann created a micro factory inside his bedroom at home in Indiana (USA). The boy turned a hobby into a profitable business, achieving over US$ 1.7K (about R$ 9.6K) in revenue in less than six months, according to CNBC Make It.

From Hobby To Real Business

It all started when Heitmann saw classmates selling toys and parts made with 3D printers. He was inspired and decided to open his own online store.

At first, he used a simple Creality printer, the Ender model, capable of producing objects in only one color.

ARTICLE CONTINUES BELOW

Routine And Sales

Jacob divides his time between school and his small business. Before going to school, he checks the orders and leaves the printer running during the day.

The best-selling items are colorful skulls that cost less than R$ 108 and have been popular among classmates and customers on platforms like Etsy.

In addition, the boy learned to operate and design the models by watching tutorials on YouTube and taking online courses.

Today, he dedicates about three hours a day to his work, balancing it all with school tasks.

His Plans For The Future

Heitmann says he has always wanted to sell products and feels satisfaction seeing people buy his creations. “This makes me feel like a big businessman,” he told CNBC Make It.

With the profits, he intends to reinvest in his store and expand the catalog, creating an exclusive line of custom toys and accessories made with a 3D printer.

With information from UOL.

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10-Year-Old Boy Builds Microfactory in His Room with 3D Printer, Learns Everything on YouTube, and Already Earns R$ 10,000

At Just 10 Years Old, American Jacob Heitmann Turned His Room Into A Micro Factory With 3D Printers, Earns Over US$ 1.7K, And Plans To Launch His Own Line Of Custom Toys

From Hobby To Real Business

Routine And Sales

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10-Year-Old Boy Builds Microfactory in His Room with 3D Printer, Learns Everything on YouTube, and Already Earns R$ 10,000

At Just 10 Years Old, American Jacob Heitmann Turned His Room Into A Micro Factory With 3D Printers, Earns Over US$ 1.7K, And Plans To Launch His Own Line Of Custom Toys

From Hobby To Real Business

Routine And Sales

His Plans For The Future

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SpaceX will dock a $843 million vehicle to the International Space Station to push a nearly 420-ton laboratory against the atmosphere and make the debris fall in a controlled manner into the ocean.

China opens the world’s first school where more than 100 humanoid robots from different brands will study together, each movement will be repeated up to 600 times a day and the data will feed a collective brain that will teach all the robots of the future.

An Indonesian fisherman pulls a mysterious object from the sea and discovers that it is a Chinese underwater monitoring system, part of the so-called Underwater Great Wall that Beijing uses to track submarines and unmanned vehicles in strategic straits of the region.

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