Access these directions at

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Take the MCHS Library December 3D Printing Challenge:

Make a Holiday Season Cookie Cutter!

3D design and printing has so many applications for both practical and creative items. Here’s a fun chance to get going with 3D printing. Design a cookie cutter and get it 3D-printed at the library!

These directions are adapted with many thanks from a posting at I borrowed the completed cookie frame from that posting, and these directions start from there.

  1. If you haven’t used Tinkercad before, be sure to watch this tutorial: There are also a lot of other tutorial on the Tinkercad site at this link ( help you get more familiar with the software. I recommend spending some time watching them first.
  2. Draw a very simple picture on an index card or plain sheet of paper with a Sharpie marker. Use thick lines and make sure that your entire picture is very simple so it can serve as a cookie cutter design. Here are a couple of examples:

  1. Take a photo of the drawing with your camera or phone in an area with lots of light and upload the file to a computer.
  2. Go to Upload the drawing file and convert it to an .svg file. Try choosing 250 pixels x 250 pixels for the image size, but leave everything else at the default settings.
  3. Download the new .svg file.
  4. Open Create a free account or login to your existing account.
  5. Search for “cookie cutter mira costa.” You will see one created by Ms. Lofton (user jane 257). Click on it, then click Copy & Tinker. (This frame is borrowed with thanks from
  6. Drag the Ruler, available under Helpers to the right of the workplane, into the workplane to make the measurements of your objects appear when you click on them.
  7. Find the Import tab to the right of the workplane. Click Choose File and find your .svg file. Select Import.
  8. Scale your object down so it will fit inside the cookie cutter. To scale the length and width proportionally, hold down the Shift key and drag in from one of the corners. Separately scale the height to about 6 mm. You can change measurements either by dragging or by typing in new numbers. Do this scaling before you move your image over the cookie cutter; it will be much easier to manipulate that way. If you want to add any other elements to your object, do that now. (The snowman’s eyes and mouth didn’t come through in the .svg file, so I added those with Tinkercad.) Then, hold down Shift and drag around the object and select Group.
  9. Drag your grouped image inside the cookie cutter.
  10. Find the box shape under Geometric shapes to the right of the workplane. Move it into the workplane to the side of the cookie cutter and scale it to 24 mm length, 5 mm width and 5mm height. This will print separately from the rest of the cookie cutter and can be glued on the back of the shape object as the handle after printing.
  11. Save your design by moving the cursor to the Design menu at the top left and selecting Save. You can also change the name of your design by selecting Properties on the Design menu.
  12. Export your cookie cutter from Tinkercad by selecting the Design dropdown menu and choosing Download for 3D Printing, and then select STL format and save it to your desktop.
  13. To have your design printed at the Mira Costa Library, change the name of the file to your name - so we know whose it is - and make sure it has the .stl extension. Then, go to this link - - in your browser and upload your file. This will send it to a Google folder so it can be printed on the Mira Costa Library 3D printer.

Here are example cookie cutter designs, ready to send to the printer:

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Once your design is printed, get ready to make cookies! Use the outer frame to cut out the square cookie shapes and the inner frame to stamp your design into each cookie.

Other Ideas to try: