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Featured image of 18 Free 3D Print Test Models, Plus How to Fix Everything from Stringy Prints to Bad First Layers
Stop, Calibrate, & Listen
18 Free 3D Print Test Models, Plus How to Fix Everything from Stringy Prints to Bad First Layers

These free calibration models help you diagnose a wide range of 3D printing problems and choose the right setting to fix them.

by Jackson O'Connell
Featured image of Super Glider, Deafening Whistle & Cocktail Machine: Cool Things to 3D Print in August 2026
Cool Things
Super Glider, Deafening Whistle & Cocktail Machine: Cool Things to 3D Print in August 2026

Stuck in a 3D printing rut? Unsure what to print next? We've got you covered. Here are this month's 50 cool things to 3D print – as always, starting with 5 new picks at the top, followed by reader favorites.

Featured image of Where We Go for Free STL Files: The All3DP Essential Guide
Model Mania
Where We Go for Free STL Files: The All3DP Essential Guide

Discover the best sites to download free 3D printer files. Whether you're a home hobbyist, 3D designer, or someone using a professional print service, our guide has you covered.

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Featured image of How to Print a Colorful Lithophane with Bambu Lab Multi-Color Printers
True Colors
How to Print a Colorful Lithophane with Bambu Lab Multi-Color Printers

Wondering how to take your lithophanes to the next level? Read on to learn how to print vibrant Bambu Lab lithophanes!

by Alejandro Benítez De la Riva Aug 15, 2026
Featured image of 3D Print a Lithophane From Any Photo: 3 Easy Methods
Background Becomes Foreground
3D Print a Lithophane From Any Photo: 3 Easy Methods

Lithophanes offer a unique way to add some sophistication to your photos. Check out how to make your own lithophane 3D print!

Aug 13, 2026
Featured image of 18 Free 3D Print Test Models, Plus How to Fix Everything from Stringy Prints to Bad First Layers
Stop, Calibrate, & Listen
18 Free 3D Print Test Models, Plus How to Fix Everything from Stringy Prints to Bad First Layers

These free calibration models help you diagnose a wide range of 3D printing problems and choose the right setting to fix them.

by Jackson O'Connell Aug 8, 2026
Das Auto
"Built to move like the real thing,"

MakerWorld user Auxcron's incredible 1:2.5 scale reconstruction of the Volkswagen 1.9 TDI engine is a sight to behold. Totalling some 300+ components requiring more than 50 hours of total printing time, the result is a fully animated monument to great fuel economy.

The files aren't publicly available – yet. Auxcron is preparing to launch the project as a crowdfunding campaign on MakerWorld, with the proceeds providing funds and time to improve the fit and finish of the parts, author the build guide and BOM, and generally give it the polish it deserves before releasing the files.

by  Matthew Mensley Aug 5, 2026
Source: Auxcron
Featured image of Super Glider, Deafening Whistle & Cocktail Machine: Cool Things to 3D Print in August 2026
Cool Things
Super Glider, Deafening Whistle & Cocktail Machine: Cool Things to 3D Print in August 2026

Stuck in a 3D printing rut? Unsure what to print next? We've got you covered. Here are this month's 50 cool things to 3D print – as always, starting with 5 new picks at the top, followed by reader favorites.

Aug 1, 2026
Featured image of Fix Your Fails: The 10 Best Models to Calibrate Your Resin 3D Printer
Ready the Resin
Fix Your Fails: The 10 Best Models to Calibrate Your Resin 3D Printer

Even resin 3D printers need a workout from time to time. Discover the best resin test print models to whip your machine into shape!

Jul 21, 2026
Featured image of I Used AI to Turn Washington, D.C. Into a 3D Printed Map for America’s 250th
A Monumental Test
I Used AI to Turn Washington, D.C. Into a 3D Printed Map for America’s 250th

PrintPal promises a city miniature from just a name. For America’s 250th, I chose the nation’s capital to see if it lives up to its claim.

by Nutan Jaeger Jul 4, 2026
Featured image of Waste to Workshop: 10 Brilliant Hacks for Your Empty Filament Spools
Trash to Treasure
Waste to Workshop: 10 Brilliant Hacks for Your Empty Filament Spools

Wondering what to do with all those empty filament spools? Check out these fun projects for some inspiration and new ideas!

Jun 20, 2026
Featured image of 3D Print Your Own 2026 World Cup Party: Trophies, Mascots & More
2026 World Cup
3D Print Your Own 2026 World Cup Party: Trophies, Mascots & More

We dug through hundreds of World Cup-themed 3D prints to find our favorite free trophies, mascots, accessories, party prints, and fan-made keepsakes.

by Carolyn Schwaar Jun 11, 2026
Featured image of Forget Standard Desk Toys: These 3D Printed Fidgets & Clickers Are Actually Worth Your Filament
Toys or Tools?
Forget Standard Desk Toys: These 3D Printed Fidgets & Clickers Are Actually Worth Your Filament

From print-in-place gears to mesmerizing geometric motion, we found the absolute most satisfying free models to load onto your printer.

Jun 4, 2026
Featured image of 30 “Impossible” Puzzles to Challenge Your Brain and Your Printer
Puzzle Your Printer
30 “Impossible” Puzzles to Challenge Your Brain and Your Printer

Push your printer to the limit with 30 mechanical 3D printed puzzles. From secret boxes to complex jigsaws, these designs are ready to print.

May 5, 2026
Featured image of The $60 Enclosure: Why Every Maker Needs the Ikea Lack Hack
Hack Your Lack!
The $60 Enclosure: Why Every Maker Needs the Ikea Lack Hack

Stop warping and cut noise without breaking the bank by building a professional grade 3D printer enclosure for under $100.

by Nicholas Anna May 2, 2026
Featured image of We Curated the Best Free DnD STL Models for Your Next Epic Campaign
3D&D
We Curated the Best Free DnD STL Models for Your Next Epic Campaign

If you love playing D&D, join us on an adventure to discover the best free DnD 3D print files and 3D models and where to find them!

Apr 29, 2026
Featured image of How to Build a 3D Printed DIY Drone That Actually Flies
Layered for Liftoff
How to Build a 3D Printed DIY Drone That Actually Flies

From quick weekend projects to high-performance FPV builds: This all-in-one guide helps you choose the right 3D printing files, mastering the best filaments, and successfully launching your first 3D printed drone.

by Carolyn Schwaar Apr 25, 2026
Melodic Making
Can 3D printed instruments sound good enough for music?

That's the fundamental question the immensely talented Super Valid Designs asks in a recent video on YouTube. The answer – an emphatic near four-minute long song – uses over a dozen fully 3D printed musical instruments with zero digital effects or post-processing. This video gives a peek behind the curtain at the process, but the main show starts at 21m 40s. Alternatively, you can listen to it on popular music streaming platforms, too.

Some of the instrument files are available on their Printables profile, should you feel inspired.

by  Matthew Mensley Apr 23, 2026
Featured image of Warhammer STL Files & 3D Prints: 10 Cool Sites
It's Hammer Time!
Warhammer STL Files & 3D Prints: 10 Cool Sites

Warhammer is ever-popular, and with 3D printing you can expand your collection! Here are the best sites for 3D printed Warhammer models!

Apr 11, 2026
Keys and CAD
Keychron just released what appears to be all of its design files on GitHub.

Best known for its smart-looking mechanical keyboards, the brand's in-depth GitHub repo includes all the CAD for some 80+ products, giving you access to reference files to adapt, remix, and design around. The kicker? Personal use only – this is source available, not open source. It gives a fascinating look behind the curtain at a series of minimal looking peripherals, and for owners, an easier starting point to design your own 3D printable accessories.

by  Matthew Mensley Apr 9, 2026
Source: Keychron, via GitHub
Featured image of 3D Printed Toys: 25 Great 3D Prints for Kids
Print 'n' Play
3D Printed Toys: 25 Great 3D Prints for Kids

3D printing can be fun for the whole family – the process and the results! Check out these great 3D printed toys for kids (and grown-ups).

Apr 4, 2026
Featured image of ABS Acetone Smoothing: 3D Print Vapor Smoothing Guide
Smooth It Out!
ABS Acetone Smoothing: 3D Print Vapor Smoothing Guide

FDM 3D prints usually show layer lines. Learn about ABS acetone smoothing and how to get a totally smooth surface finish in four easy steps.

Apr 3, 2026
Snap Happy
Looking for your next print-based project?

Then look no further than photographer Sebastian Lay’s curation of fully 3D printable analog cameras. You don't even have to be a photography geek to appreciate this easy-to-browse database. In it, you'll find 113 models, across a variety of film types and formats, shapes and sizes (including pinhole and lens-mountable models) dating all the way back to 2013.

by  Matthew Mensley Apr 2, 2026
Screenshot: printed.analogcamera.space
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