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30 Coolest DIY Projects You Can Make With 3D Printing

diy projects

Looking for a great DIY project for your new 3D printer? These are 30 of the coolest DIY projects we could find.

3D printing has not only transformed the way goods are produced on an industrial level, as consumers grasp this exciting technology’s potential, it is also permeating into the workflow of hobby engineers. Discover these cool DIY projects that wouldn’t be possible without 3D printing!

Don’t have access to a 3D printer? Have no fear. Simply upload the 3D print files to our Best Price 3D Printing Service to get these cool things 3D printed.

Cool DIY Projects #1: Design Your Fidget Spinner

DIY Project Fidget spinner

Seeing that fidget spinner are likely the single most 3D printed items, it’s no wonder that many people want to design their own version. This DIY project tutorial will teach you all there is to know about the mechanics of fidget spinners and how to create your 3D printable file. We’re looking forward to seeing new variations soon!

More on this DIY project on Instructables. More on the best fidget spinners here.

Cool DIY Projects #2: Tin Can Dumbbell

A nifty hack for those who want to supplement their fitness gears. Using 3D printing this DIY project allows you to turn your old tin cans into dumbbells. Pay special attention to the scale of the 3D Files as they have to be printed to snap fit with the tin cans. The files are available in two diameters: 73.25mm and 83.75mm.

More on Instructables.

Cool DIY Projects #3: Veggie Toys

Start playing with your food! Use the imaginative Open Toys to turn your vegetables into submarines, fighter jets or racing cars. The best part about this DIY project is, it comes with a tasty recipe for Ratatouille. So, every time you play with the Open Toys, you can also look forward to a delicious meal! A perfect family project for the weekend.

More information on Instructables.

Cool DIY Projects #4: Penny Whistle

This Penny Whistle was designed to facilitate the collaboration of STEM and the Arts faculties. The mouthpiece should 3D print fairly quickly you only need to attach a 6in plastic tube, and you can start playing within the hour!

To be found on Instructables.

Cool DIY Projects #5: Dragonfly

Coolest DIY Project Dragonfly

This nifty flying machine is inspired by the odd aerodynamic properties of dragonflies, which use drag to lift them up. This DIY project was designed to allow anyone interested in investigating these properties hands-on. The flaps are powered by twisted rubbers. The 3D printed dragonfly should make for a fascinating Saturday project.

Thingiverse Files right here.

Cool DIY Projects #6: Tool Handles

Are you into fine dining? Then customizing your cutlery could be your next big DIY project. Using 3D printing, you create a reusable silicone casting mold, into which you cast thermosetting plastic handles. To ensure consistent quality the author even prepared a jig. The results are truly spectacular, but prepare to get your hands dirty.

To be found on Instructables.

Cool DIY Projects #7: Balloon Powered Chassis

When you were a kid, chances are you got in contact with a balloon powered car. Technological progress permeates every aspect of our lives. So, it is only logical that we got this updated 3D printed version: Here the air does not directly propel the car forward. Instead it powers a single cylinder motor. The sophisticated mechanism makes the assembly of this DIY project a welcome a challenge.

Learn more on Instructables.

Cool DIY Projects #8: Leather Stamps

Stamping leather is an ancient technique that is nowadays mostly forgotten. Thanks to 3D printing, you can help revive it and create stunning patterns for book covers, purses or belts. The Instructable for this DIY project will show you how to design a suitable stamp and how to prepare the leather for stamping.

More on this DIY Project on Instructables.

Cool DIY Projects #9: Custom DIY Orthotics

You spent all your money on a 3D printer and can’t afford orthotics as a result. No worries. The authors of this incredible DIY project have come up with an ingenious way can relieve even serious conditions like plantar fasciitis, hallux rigidus, and Morton’s neuroma. The process involves creating a cast from play-dough that is 3D scanned and then 3D printed in ABS.Still – better consult a doctor before wearing them for long.

This DIY project also can be found on Instructables.

Cool DIY Projects #10: Postbox Popsicle

This idea is so ingenious that we wonder why no one thought of this before. You create a mold using 3D printing, glue it on cardboard and fill it with whatever sweet liquid you prefer. You send it by mail to your friends who can freeze the postcard and enjoy the popsicle. There is no better DIY project for the summer!

The DIY popsicle can be found on Instructables.

Cool DIY Projects #11: Chocolate and Ice Molds

Learn this fool proof technique and become a master confectioner! To prepare the mold, you need a 3D printer, some food-grade silicone, modeling clay and an idea of the 3D model you want to use. This is the ideal DIY project when you need a present for friends or family. Also a really cool DIY project for kids.

The Chocolate and ice molds can be found on Instructables.

Cool DIY Projects #12: Pinhole Camera

The terraPin ACME pinhole camera is the scion of many previous DIY projects that attempted to design a camera using 3D printing. And indeed, the photos taken with the terraPin are very impressive! Except for the pinhole, this nifty design uses nothing but 3D printed parts. It is designed for use with medium format 120 films.

More on this DIY camera 3D printing project on Thingiverse.

Cool DIY Projects #13: Topo Maps

Whether you travel a lot mostly stay where you live, this DIY project showcases an awesome application for 3D printing. With the public scan data can 3D print virtually any landscape worldwide. Why not put Mt Everest on your mantlepiece or use the Grand Canyon as a paperweight?

More on Instructables.

Cool DIY Projects #14: Strandbeest – Beach Beast

Theo Jansen combines engineering and art in his kinetic sculptures. They are best known for mysteriously roaming the beaches of his native Netherlands – propelled by the power of the wind. Now, thanks to this Instructable you can build your very own cool DIY Strandbeest.

See it on Instructables.

Cool DIY Projects #15: 3D Printed Record

Convert audio files into 3D-printable records and play them on any record player. It goes without saying, that you cannot expect well-balanced basses and crisp sound. But this DIY project gives you the tools to explore the limits and possibilities of 3D printing. The technologies involved are very well described in the Instructable, and you can listen to a selection of test prints.

More on this DIY Project on Instructables.

Cool DIY Projects #16: Centrifuge

Coolest DIY Project Centrifuge

You’re interested in biology, but don’t have access to a big fancy lab? The DIYbio movement is to here to the rescue. Its aim is to put to essential tools into the hands of the general public. This centrifuge does not come with sophisticated timers and controls, but it is good enough to perform such tasks as DNA extraction. To build this DIY project, you need to program an Arduino.

More on MakeZine. The files for the DIY 3D printing project can be found on Thingiverse.

Cool DIY Projects #17: Repair Broken Glasses

In the past, when you broke your glasses, you either went Harry Potter and duct-taped them or you bought new ones. Now, in the golden era of desktop 3D printing, this DIY project shows you how to mend glasses yourself, although the result may not be as aesthetically pleasing as a new pair of glasses.

Repair instruction on Instructables.

Cool DIY Projects #18: Electron Violin

3D printed instruments often don’t sound very well as many materials don’t have the right sonic properties. The minds behind the F-F-Fiddle (pronounced eff-eff-fiddle), an electric violin, figured out how to make it work. According to the website, the overall material cost is about $250. If you need advice, you can even join a dedicated F-F-Fiddle Builder’s Group.

More on this DIY project the Openfab PDX website; the files are right here on Thingiverse.

Cool DIY Projects #19: Drawing Machine

Coolest DIY Project Drawing Machine

With this partially 3D printed drawing machine, modern technology comes full circle. Clamp any pen or pencil and create stunning works and paper of art from raster files. A drawing machine is an ideal tool to use for formal invitations, place cards or any other occasion that usually requires tires your hand by writing on end.

The Thingiverse files are here.

Cool DIY Projects #20: Solar System Orrery

Apart from the sheer beauty, this stunning contraption gives a precise impression of the relative positions and motions of the planets and moons of the solar system. In addition to 3D printing, this cool DIY project involves working brass tubes and miniature bearings. The author warns that you will need a precisely tuned 3D printer and a sound understanding about using it.

More on Instructablesfiles here.

Cool DIY Projects #21: Electric Coffee Maker

Without coffee, we at All3DP couldn’t do anything meaningful. That’s why we were instantly excited when we learned about this fantastic DIY project. The design itself is a work art! But be warned, not everything is 3D printed. The base of this coffee maker requires aluminum casting.

Instructables here.

Cool DIY Projects #22: Split Flap Display

Split-flap displays are a thing of the past, as they have been replaced in most airports and train stations by trite LCD displays. If you were ever intrigued by the mechanism of split-flap displays (we certainly were!), you have the chance to build your own from scratch using 3D printing and laser cutting. The assembly and programming of the split flap display should keep you busy for a couple of weekends.

This Instructable will fill you in on all the details of this DIY project.

Cool DIY Projects #23: Camera Slider

Every cameraman knows how expensive good equipment is. So, why not make your own? This DIY project for a motorized camera slider is a great example of how 3D printing can put consumers in charge of producing items they need and can afford. We look forward to more great projects like this one.

Instructables here.

Cool DIY Projects #24: PiKon Telescope


The PiKon Telescope is a 3D printed telescope. The original design goes back to none other than Isaac Newton (that’s why it is often called a Newtonian telescope). This 21st-century incarnation is powered by a Raspberry Pi so you can gaze at the stars on screen. While components are not super expensive, makers from around the globe reported they had to adapt the design to the materials available to them locally.

More on Instructables.

Cool DIY Projects #25: Snake Robot

You have to see it, to believe how endearing this snake robot is. If you want to make your own, prepare for some serious tinkering. Not only will you need to install 8 servos, but to board a standalone Arduino microcontroller on a breadboard.

Watch the video for this DIY project on assembling the segments on Instructables.

Cool DIY Projects #26: Hovercraft

A German engineering student has come up with this cool remote controlled hovercraft. The DIY project is his first step to establishing hovercraft as cheap mobile research stations for the arctic. Most parts are 3D printed, but the base is cut from styrofoam. The hovercraft is powered by three motors.

More information on Makezine.

Cool DIY Projects #27: Quadcopter

This light weight FPV quadcopter was designed to be crash resistant and offer good protection for onboard gear. While this is certainly not a cheap DIY project for 3D printers, as many as 24 remixes for this design can be found on Thingiverse to accommodate most budgets.

Instructables here.

Cool DIY Projects #28: Robot Arm

Coolest DIY Project Robot Arm

This 5-axis robot arm was designed from scratch by professional engineers, and its source files are published under a Creative Commons license. In addition to the 3D printed components, you will need stepper motors and an Arduino. The arm uses Zortrax steppers specifically developed for robots.

Thingiverse Files here.

Cool DIY Projects #29: Electric Unicycle

This DIY project is a prime example how discontent can inspire people to completely redesign a product available on the market. The unicycle is designed for the 500W Unicycle motor from Microworks, giving you a top speed of 20mph (30km/h) and a range of about 25 miles (40km). While building the unicycle does not require the skills of a rocket scientist, it set will you back $375 to $800, depending on which parts you choose.

Instructables here.

Cool DIY Projects #30: Lost PLA Metal Casting

It’s up to you if you want to try this DIY project at home. It is a variation of lost wax casting, but instead of a wax mold, you use a 3D printed model. You create a plaster cast and burn out the PLA. Finally, you pour metal into the cast. The author warns against using ABS, as the fumes are poisonous. No doubt, a technique that complements the possibilities of 3D printing, but obviously you should only attempt it if you feel comfortable handling molten metal.

More on this DIY project on Instructables .

Did we miss a great DIY project for 3D printing? Please feel free to add it to the comments.