15 Amazing 3D Printed Keychains You Need to Try
Are you looking for a quick and incredibly satisfying project to run on your 3D printer today.
3D printed keychains are the ultimate bite sized creations. They require very little filament and allow you to turn a blank keyring into a highly personalized accessory in almost no time.
To spark your creativity, we gathered 15 of the most amazing 3D printed keychain designs available right now.
Let us dive into these brilliant ideas, and later we will show you exactly how to make your own from scratch.
Ratcheting Mini Screwdriver
Someone told the creator they could not fit a ratchet into a tiny screwdriver. They took that as a challenge!
This 3D printed keychain is a real working screwdriver with a clever design.
Just flip it to change directions, since it has sockets on both ends. The 30 degree ratchet works both clockwise and counterclockwise, making this tiny tool surprisingly useful.
Keep it on your keychain and you will always have a tool ready when you need one.
Source: FreddyZ
Download this 3D Printed Keychain STL File
Rotating Keychain Display
Ever get tired of digging through your pocket for the right key? This rotating keychain display is a useful 3d print that solves this problem with style.
The gray stand has arms sticking out in all directions with notches to hang keychains.
You can load it with all your colorful creations. The center pole lets the whole thing spin so you can see all sides easily. It's perfect for showcasing your collection or displaying items if you sell 3D printed keychains.
For best results, print this 3D printed keychain in a durable material like PETG or ABS since it will see daily mechanical stress.
Source: NickR1983
Download this 3D Printed Keychain STL File
Customizable Key Holder
This two color key holder looks good and works well. You can use it as is or make it your own by changing the inserts.
This 3D printed keychain keeps your keys neat. They won't jingle in your pocket. You can add your name, phone number, or a short saying to make it yours.
It looks fancy when printed in two colors. The holder keeps keys tidy but easy to get to when you need them.
Try printing the outer shell with slightly bendy filament. This makes it easier to put keys in and take them out.
Source: Justin
Download this 3D Printed Keychain STL File
Flexi Rex Keychain
Who doesn't love a dinosaur that can move? This 3D printed keychain is a small version of the famous bendy T Rex.
It prints as one piece but bends after printing. Kids love to play with it. Adults find themselves fidgeting with it during calls. It shows off what 3D printing can do.
The small dino moves just like the bigger model. The joints work right away with no extra steps. The neck and tail bend in a way that looks real.
Print this 3D printed keychain slowly to make sure the joints form well. PLA works fine, but TPU makes an even bendier dino.
Source: MK Design
Download this 3D Printed Keychain STL File
Minecraft Tools with Keychain Hole
These tiny Minecraft tools look just like the ones in the game. You get a sword, pickaxe, and shovel. Each has a hole so you can put it on your keychain.
These 3D printed keychains match the blocky style of Minecraft. Anyone who plays the game will know what they are right away.
You can make them even better with UV printing. Check out the video below to see how the magic happens.
Source: Nikolaus
Download this 3D Printed Keychain STL File
Cheese Keychain
Sometimes the simplest ideas are the best.
This 3D printed keychain looks like it came straight from a cartoon, complete with perfectly placed holes! It's a fun way to add some personality to your keys.
Source: THop3D
Download this 3D Printed Keychain STL File
Filament Key Chain
This clever keychain looks like a tiny spool of 3D printer filament. It's a small version of the spools we all have by our printers.
This 3D printed keychain is fun because it's about 3D printing itself! It has all the details of a real spool, from the center hole to the sides and even tiny strands of filament.
Print it in the same color as your favorite filament. Some people print many in different colors to match their filament stash. It's a subtle way to show you're into 3D printing.
It prints fast but still shows nice details. It makes a great gift for other maker friends.
Source: Zdrapek
Download this 3D Printed Keychain STL File
Customizable Name Keychain
Why buy a boring keychain when you can print one with your name on it? This model lets you make a custom 3D printed keychain in just minutes.
It looks clean and nice, with options for different text styles. It works great for gifts, sorting keys, or adding a personal touch. You can add more than names. Try phone numbers, short quotes, or inside jokes.
Try making these in different colors for family members. Schools and clubs can make matching ones for group members.
Source: rmfms
Download this 3D Printed Keychain STL File
Retro Cassette Keychain
Miss the old days? These cassette tape keychains bring back the 80s. The design has all the details of a real tape, from the spools to the label area.
This 3D printed keychain mixes old school cool with daily use. The cassette is small enough to carry but detailed enough to look real. It starts fun talks with other people who grew up with tapes.
If your printer can use two colors, this is a great model to try. Print the body in one color and details in another. Some makers add tiny paper labels for extra realism.
Source: ncsandor
Download this 3D Printed Keychain STL File
Mini Keychain Pill Box
These clever pill boxes attach right to your keychain.
They're tiny, about the size of a coin, but big enough to hold emergency medicine. The screw-top design keeps pills safe and dry. Perfect for carrying daily meds or just-in-case pills.
The smart part is how well they work. The threads on the lid match perfectly with the base for a secure close that won't pop open in your pocket.
Source: DrJones
Download this 3D Printed Keychain STL File
Cute Mothman Keychain
Who says scary things can't be cute? This Mothman keychain turns the famous monster into a pocket sized pal.
This 3D printed keychain is great for fans of myths, monsters, or just weird stuff. It keeps the key Mothman features but makes him cute. The big eyes and tiny body make him look friendly.
It stands out because most keychains are boring. How many people have a cute Mothman on their keys? It starts fun talks about myths and legends.
Source: Nolan3D
Download this 3D Printed Keychain STL File
Snake Keychain
These amazing snake keychains actually bend and move. You can make them in different colors to match your style.
Each snake is made of connected segments that move like a real snake. The whole thing prints in one piece, but after printing, the joints break free and can wiggle. The keyring attaches at the head.
The maker designed it to print standing up for a nicer finish. After printing, just remove the brim and break the weak links. The hidden joints stay intact and work well.
Source: Cisco3D
Download this 3D Printed Keychain STL File
Heart Gear Keychain
Love meets tech in this heart gear keychain. The gears fit together to form a heart shape, and they really turn!
First made for wedding favors, this 3D printed keychain blends emotion with clever design. It’s a perfect wedding gift or a thoughtful 3D print for Valentine’s Day.
The gears might feel a little xstiff at first but get smoother as you use them. When you turn one, they all move together in sync.
Print with thin layers so the gear teeth form right. A drop of oil helps if the gears are stiff.
Source: AntOfGods
Download this 3D Printed Keychain STL File
Keychain Anchor
This bright anchor keychain really stands out. The clean design looks great in any color, though bright colors make it easier to find in your bag.
The anchor shape is simple but instantly recognizable. The top loop connects smoothly to a metal keyring, making it sturdy enough for daily use.
It's a fun nautical touch that adds personality to your keys. Try printing it in blue or green for a classic sea theme, or go bold with bright colors.
Source: Neelix
Download this 3D Printed Keychain STL File
Rotating Brake Disc Keychain
Car lovers will enjoy this brake disc keychain. It has a real spinning brake rotor with a caliper and pads.
This 3D printed keychain stands out because it moves. The brake disc spins inside the caliper, just like on a real car. It's a tiny working model that fits in your pocket.
The details are spot on, from the holes in the rotor to the shape of the caliper.
Source: Jerryie
Download this 3D Printed Keychain STL File
How to Make Your Own 3D Printed Keychains
We just shared plenty of amazing 3D printed keychain ideas above, but the real fun begins when you start manufacturing them.
Crafting your own custom 3D printed keychain is an incredibly rewarding project.
Here is a simple step by step guide to bring these pocket sized creations to life.
Step 1: Find or Create Your Keychain Design
Even though we explored several great keychain designs earlier, you might still be looking for that perfect match.
If you want to browse even more ready to print keychain STL files, check out our curated list of the sites for free 3D print files.
You will find thousands of custom keychain models waiting to be downloaded.
On the other hand, if you want a truly personalized 3D printed keychain featuring your specific name or custom logo, making your own design is the best route.
Head over to our complete guide on how to make STL files to learn how to create and prepare your unique keychain model from scratch.
Step 2: Print and Assemble Your Keychain
Once your custom keychain file is ready, send it to your 3D printer.
Because they are so small, most standard keychain designs take anywhere from twenty minutes to an hour to finish printing.
After the plastic cools, carefully remove your fresh 3D printed keychain from the build plate.
To finish the physical assembly, thread a metal jump ring and a sturdy split keyring through the built in hole of your printed keychain.
Step 3: Add Full Color with UV Printing
A plain plastic keychain is great, but adding vibrant colors makes your 3D printed keychain truly stand out.
For an incredible post processing upgrade, you can use the eufyMake E1 UV printer. This UV printing technology applies full color patterns directly onto your 3D printed keychain.
Whether you want to add a vivid photo, a detailed logo, or complex textures, printing directly on your custom keychain gives it a professional and premium finish without the tedious work of hand painting.
Step 4: Troubleshooting Small Keychain Prints
Printing small keychain accessories involves tiny details like the keychain hole or thin text, which can sometimes be tricky.
If your 3D printed keychain has rough edges, weak loops that break easily, or stringing between small letters, do not worry.
Simply check out our comprehensive guide on 3D printing problems to perfect your keychain production process.
5 Tips for Printing Better Keychains
Want to make great 3D printed keychains? Keep these tips in mind:
- Make the keyring hole strong. This part gets pulled on a lot. Make sure the hole has thick edges.
- Use more infill. Since keychains are small, using 50% or even 100% infill won't waste much plastic but makes them much stronger.
- Layer height makes a difference. For detailed keychains, use thin layers (0.1mm). For simple ones, thicker layers (0.2mm) work fine and print faster.
- Print direction matters. Place your keychain so the key ring hole is strongest along the layers, not between them.
- Pick the right plastic. PLA is easy to print with, but PETG and ABS last longer in your pocket and won't melt in hot cars.
3D Printed Keychain FAQs
What's the best plastic for keychains?
PLA works well for most keychains. It's easy to print and shows good detail. For stronger keychains, try PETG or ABS. For bendy ones like the Flexi Rex, use TPU. Shiny or metallic filaments make keychains look fancy.
Is 3D printing a key illegal?
The short answer is no, 3D printing a key is not inherently illegal. It is perfectly legal to 3D print duplicate copies of keys that you personally own or have explicit permission to copy, such as your own house key or a padlock key.
However, the act becomes illegal if you use a 3D printed key to trespass, steal, or access property without proper authorization.
Can I sell the keychains I print?
It depends on each model's rules. Some makers allow selling, others don't. Always check the license info on the model page before selling. Most allow personal use, but selling may need permission.
If you're interested in starting a small business, check out our guide on profitable 3D printed products to sell online.
