Romantic 3D Prints for Valentine’s Day (2025 Edition)

I love finding a way to make something personalized for the people I care about. Valentine’s Day is right around the corner, and while you could go buy a generic card or a box of chocolates, nothing says “I care” like a custom print that took a little bit of design time and some bed leveling. Whether you are looking for something functional or just plain cute, I’ve put together a list of my favorite Valentine’s Day prints that will look amazing on your desk—or your partner’s!

Here are a few things to think about

1. Choose the right material. For Valentine’s prints, Red and Pink PLA are obvious choices, but don’t overlook “Silk” filaments. Silk PLA gives a shiny, metallic-like finish that makes hearts and jewelry boxes look premium right off the build plate.  I like this Pink Silk PLA+ from Overture.

2. Think about tolerances. If you are printing “Print-in-Place” items like flexi-dragons or hinged boxes, make sure your flow rate is calibrated. There’s nothing worse than a Valentine’s gift that’s fused solid!

3. Scale matters. A tiny heart might print in 20 minutes, but scaling it up for a centerpiece can take 10 hours. Plan your print time so you aren’t staring at the printer at 11:00 PM on February 13th.

4. Add a personal touch. The best part of 3D printing is customization. Use tools to add names or dates rather than just printing a generic file you found online.

Our Top Valentine’s Day 3D Print Ideas

There are thousands of models out there, but these four categories always tend to be the biggest hits in the workshop.

1. The “Eternal” Rose

Real flowers die in a week. A 3D printed rose stays perfect forever. You can find many multi-part designs where you print the stem in green and the petals in a deep red. If you can print multicolor (like we talked about in our multicolor guide), you can even print these in one go!  There are a lot of options out there, but this is one of my favorites.

2. The Heart-Shaped Gear Cube

This is a classic for a reason. It’s a mechanical puzzle that forms a heart shape. It’s fun to fidget with and looks impressive on a shelf. It does require some assembly, but they’ve made it as easy as possible with it being 100% 3d printed and a nice video to go along with it if you get stuck.  I’ve had really good luck with this one.

3. Lithophane Night Lights

If you want to go the “extra mile,” turn a photo of you and your Valentine into a lithophane. When the light shines through the back of the plastic, your photo appears in stunning detail. There are many free online generators that turn a JPG into a 3D printable STL in seconds.  These are surprisingly easy to create and look awesome.

4. Custom Heart Nametags (The Quick & Easy Winner!)

If you need something personalized, fast, and professional-looking, our favorite method is using the STL Nametag Generator. You can create a custom tag with your partner’s name and add a heart emoji directly into the design.

• How to do it: Head over to the generator, type in the name, and use the “Emoji” section to add a ❤️.

• Pro Tip: Use the “Contoured” base type to make the tag shape follow the outline of the letters for a sleek, modern look.

How to make your Valentine’s Prints Pop

To get that professional “store-bought” look, follow these quick steps:

Step 1: Use the Right Slicer Settings

For decorative items, I recommend dropping your layer height to 0.12mm or 0.16mm. This makes the layer lines almost invisible, especially on curved surfaces like hearts.

Step 2: Enable “Ironing”

If you are printing the Nametags, try turning on Ironing for the topmost surface in your slicer (Creality Print or OrcaSlicer). This runs the hot nozzle back over the top layer to “smooth” the plastic, leaving a finish that looks like molded resin.  Try testing it by printing something small first.  It may take a bit to dial it in.

Step 3: Try a Manual Color Change

You don’t need a fancy multicolor system to make a heart nametag look great.

• Start the print with a Black or White base.

• Pause the printer when it starts printing the letters and the heart.

• Swap to a Bright Red filament.

• Resume! You now have a high-contrast, professional gift.

• Read our guide if you need some help printing multiple colors on a single filament printer.

Ready to start printing?

Valentine’s Day is the perfect excuse to fire up the printer and try out a new filament or a new design tool. Whether you are making a giant mechanical heart or a simple personalized nametag, the effort you put into the slice settings and the color choice will definitely be noticed.

Give these ideas a try and let us know which one was your favorite! If you come up with a cool custom design using our 3D Builder Tools, share a photo with the community!