Say hello to the world's smallest 3D printer

A figurine of a robot made with My N Mi's 'world's smallest 3D printer', which sits in the background
(Image credit: YouTube / My N Mi)

The force behind My N Mi, a hobbyist YouTube channel for “technical experiments”, claims to have built the smallest and lightest 3D printer in the world.

At 18 x 31 x 41mm (0.7 x 1.2 x 1.6 inches), coming in as about as tall as a matchstick and as wide as an SD card adapter (per My N Mi’s own comparisons), and weighing just 17g (0.03 pounds), this isn’t just bluster. 

Showing off the build in a video (via Tom’s Hardware), there are some drawbacks to the build as a result of its size. My N Mi notes that the project has a maximum build volume of 11 x 11 x 17 mm (0.4 x 0.4 x 0.66 inches).

Compact 3D printers

Despite the smaller scale, this printer works like any other. A motor moves a build plate as a well-obscured LED imprints light on resin material stored in a tank.

My N Mi managed to print a small (and admittedly very detailed) robot figurine with their printer, but for all its compactness, you wouldn’t be printing a great deal with a machine like this in practice.

While it’s true that 3D printers are slowly but surely being dragged into the mainstream, even the Original Prusa MINI+, a 3D printer TechRadar Pro recommends for being compact and light, comes in at 33 x 33 x 38 cm (13 x 13 x 15 inches), and weighs 4.5kg (10 pounds).

So, even if you could find an ongoing use for a device like this it’s worth noting that you’ll probably have to wait a long while before 3D printers of this size become widely commercially available.

Luke Hughes
Staff Writer

 Luke Hughes holds the role of Staff Writer at TechRadar Pro, producing news, features and deals content across topics ranging from computing to cloud services, cybersecurity, data privacy and business software.

Read more
HP Smart Tank 7001 / 7005 printer during our review
Lacking in space? Here are some tiny printers for small office spaces
Anycubic foldable portable 3D printer
Anycubic may launch this gorgeous foldable portable 3D printer any day soon, and I can't wait to try it out
AnyCubic Photon Mono M7 Pro
Best 3D printer for miniatures of 2025: I tested over 50 units and these are my top models
Acer PD1520Us Projector
Could this be the world's smallest ultra short throw projector? Lilliputian Acer projector weighs only 740g and projects 100-inch pictures
Brother PocketJet PJ-773 during our hands-on review
Best portable printer of 2025
Creality K1C during our review process
Best hobby 3D printer of 2025: I tested out all the top models
Latest in Pro
Isometric demonstrating multi-factor authentication using a mobile device.
NCSC gets influencers to sing the praises of 2FA
Sam Altman and OpenAI
OpenAI is upping its bug bounty rewards as security worries rise
Context Windows
Why are AI context windows important?
BERT
What is BERT, and why should we care?
A person holding out their hand with a digital AI symbol.
AI is booming — but are businesses seeing real impact?
A stylized depiction of a padlocked WiFi symbol sitting in the centre of an interlocking vault.
Dangerous new CoffeeLoader malware executes on your GPU to get past security tools
Latest in News
Nintendo Switch 2 Joy-Con up-close from app store
Nintendo's new app gave us another look at the Switch 2, and there's something different with the Joy-Con
cheap Nintendo Switch game deals sales
Nintendo didn't anticipate that Mario Kart 8 Deluxe was 'going to be the juggernaut' for the Nintendo Switch when it was ported to the console, according to former employees
Three angles of the Apple MacBook Air 15-inch M4 laptop above a desk
Apple MacBook Air 15-inch (M4) review roundup – should you buy Apple's new lightweight laptop?
Witchbrook
Witchbrook, the life-sim I've been waiting years for, finally has a release window and it's sooner than you think
Amazon Echo Smart Speaker
Amazon is experimenting with renaming Echo speakers to Alexa speakers, and it's about time
Shigeru Miyamoto presents Nintendo Today app
Nintendo Today smartphone app is out now on iOS and Android devices – and here's what it does