Posted in Crafts, Makerspace, Passive Programs

3D Pen Cell Phone Case

Our most popular craft program last year was hot glue cell phone cases-it’s cheap and easy. The only problem is that the cases are usually too large for the phone because of the parchment paper. Also, because they are made of glue, they aren’t very sturdy if the phone is dropped.

I decided to see if one could make a case from a 3D pen and you can.  It fits perfectly and it’s a harder sturdier case.

Budget: Depends on what you have on hand-3D pens, filament, and tape.

Supplies Needed:

  • 3D Pen-You can use any 3D pen. We use Canbor because it’s cheaper than 3D IMG_3647Doodler and it’s just as good.
  • Filament-varied colors
  • Book Tape-raid your tech services supplies or just use packing tape or Scotch tape
  • Cardboard
  • Plain white paper
  • Scissors-to cut off the filament strands
  • Hot Glue (optional)


  1. Trace the cell phone. Be sure to draw a circle around the camera lens.
  2. If you are making an oversized case like the pineapple or cactus, draw the desired design outside the original template.
    1. If you are making a regular case like the egg (that’s an egg; not a flower-LOL), design the inside of the case.
  3. Cut out the case and make sure it’s the width of the phone. Also, make sure the IMG_3638circle around the camera is big enough.
    1. If you are making the egg case and it’s too large, trim it. It should be the exact size as the phone. If it’s larger than the phone, it won’t fit snugly.
  4. Tape your design to a sturdy piece of cardboard.
    1. Cardboard prevents the case from bending. If you do cardstock or foam, it will bend. It’s not the end of the world but it’s annoying.
  5. Design the case using the 3D pen.
  6. Put tape around the four corners of the phone.
  7. Hold or tape the completed case to the back of the phone. Use the 3D pen to make the pieces on the corners of the phone. Be sure the connect the case to the corner pieces.
  8. If you are making an oversized case, use the 3D pen to make the pieces that hold the case to the phone on the sides and the bottom of the phone. You do not need to hold the completed case to the back of the phone to do this.
    1. Hot glue or use the filament to adhere the pieces to the case.
  9. Remove your completed case then remove the tape.


  • Practice makes perfect.
  • If you mess up, just peel off the filament/plastic and start again.
  • When switching filament, the old color will be in the pen. Let it run out until the new color appears.
  • Give teens plenty of time to complete. It can take about 1.5 to 2 hours to complete.
  • It seems tedious but teens love 3D pens and they are very patient with it.
  • Have examples on the table or images to trace for the creatively/artsy challenged.


YA Librarian. Lover of Sherlock. And all Things Harry Potter.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s