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Valentine’s Day Pop-up Card: 3D Heart Detailed Tutorial

This is probably my most popular pop-up cards. It just takes time to do all the sewing and gluing. I’ve sped most of the video up so you may need to pause it a few times or watch some parts over to get what I’m doing. It’s not as hard as it looks. You just need a little patience to put everything together. It will all be worth it in the end when you give this card to someone you really care about.

How to make 3D Heart Valentine Day Pop up Card

Here’s the video of Valentine’s Day Pop-up Card: 3D Heart Detailed Tutorial.

If you don’t want to watch the video, here are the summarized instructions:

Step 1:

  • Download free pattern for this design here:

 Valentine’s Day Pop-Up Card: 3D Heart

  • Print out the template and use it to cut the parts out of card stock.

Step 2:

  • Cut out all the pieces making sure that you cut all the slots very precisely. If the slots aren’t deep enough, you heart will be warped and wont fold flat.
  • Start assembling the heart with pieces A and C. Put the C ring into the A heart
  • Assemble the rest of the rings (D, E) into the A heart
  • Assemble the B heart pieces by starting at the top of the heart and pulling the rings through the center. Then slide the bottom of the rings into the bottom of the B heart
  • Finish by sliding the F heart over the rings, starting from the top again.

Step 3:

  • Cut out the card backing from white card stock. Poke holes at the center of the “X” using a needle or sharp object. You will attach the heart to this card.
  • Cut out another card backing, without the holes, and cut it down the center so you have 2 pieces. This will be the outer cover.
Valentine's Day Pop-up Card: 3D Heart Detailed Tutorial

Valentine’s Day Pop-up Card: 3D Heart Detailed Tutorial

Step 4:

  • Cut 5 pieces of thread 2-3 feet long. Use thread that is the same color as your card backing.
  • Tie the thread at the 5 locations shown below. The thread should sit inside the slot in the heart pieces:
    Valentine's Day Pop-up Card: 3D Heart Detailed Tutorial

    Valentine’s Day Pop-up Card: 3D Heart Detailed Tutorial

Step 5:

  • Put the 5 threads through the 5 holes in the white card backing, starting with the center thread. Use tape to hold the thread in place so that it doesn’t slip out accidentally.
  • To pass the thread through the holes, you can use a needle, needle threader, tweezers, thin wire or floss threader (not shown). I’m using black thread in these next few pictures so that you can see it easier.
    Valentine's Day Pop-up Card: 3D Heart Detailed Tutorial

    Valentine’s Day Pop-up Card: 3D Heart Detailed Tutorial

Step 6:

  • If you don’t have these items, you can just make the holes larger and pass the thread directly through. I prefer to use a needle threader.
  • Adjust the lengths and tension of the threads so that the heart stands up straight when the card is opened. Use tape to hold the thread in place.
  • Glue the threads in place by gluing small pieces of paper on the threads.
  • Fold the string over the paper and glue a second piece of paper over the folded string. This will anchor the string in place.

Step 7:

  • Cut off the excess string.
  • Glue the outer cover pieces onto the backside of the card. Be sure to align the pieces to the center crease very accurately and make sure the card opens flat.
  • Put the card under several books or flat objects so that the card will dry flat.

If the lengths are not adjusted correctly, the heart will not stand straight. If the string is not anchored properly, the string will slip over time and the heart will begin to droop down or it will not open fully. I recommend using 65lb paper or thicker for the backing. You may want to use dense cardboard. A variation of this card is to put initials in the center of the card. Attach the initials to the A heart piece.

Valentine's Day Pop-up Card: 3D Heart Detailed Tutorial

Once you attach the heart to the inside card with the thread, you can slip it into the outside card at the corners.  This is a much simpler way to finish the card.

I hope you all enjoyed making 3D Heart Valentine’s Day Pop-up Card. Good luck!