Introduction: Introduction

In this instrucatble I will be showing you how to make a page from Laura Numeroff's "If you Give a Mouse a Cookie," come to life. We will be creating a glass of milk and a chocolate chip cookie using 3-D printing.

To get started you will need to sign up for a free account on This is what we will use to create the template for the model. This is an easy website to use even with minimal to no background knowledge in 3-D printing.

Step 1: Starting Tinkercad

Once you sign up for a tinkered account you will be able to create models in a workspace and download them for printing. After logging in press "create new design" to get started.

1. First things first, name your new project. Don't worry about thinking of the perfect name you can change it at any time. To changed the title click on the box in the top right corner that has the temporary title displayed. Once clicked, the old title will be highlighted and you can delete it and replace it with your title of choice.

2. The next step is changing the dimensions of the grid. The default dimensions are set to millimeters. Personally, it is easier for me to imagine something in inches, but this is completely your preference. In the bottom right corner of the grid press on the "edit grid" button. In the drop down bar for units, change it to inches instead of millimeters.

3. Once its all set up get to know the work-plane. There are lots of amazing features in tinkered that make it easy to use, however you first need to learn to use them. I would suggest looking up a beginners tutorial on how to use tinkered before continuing.

Step 2: Creating the Cup

Now that you are familiarized with tinkercad and your workspace is all set up, its time to create the infamous cup of milk from the book.

1. Select and drag the cylinder shape from the 'basic shape' box on the left of the screen to the grid.

2. Once the shape is on the grid you can highlight it by selecting it. Doing this will allow you to change the dimensions of the shape in multiple ways.

3. The dimensions we need for this shape are 2"LX2"WX2.5"H. You can manipulate the shape by pulling on the small boxes or typing in the dimensions in the selected areas.

Once you have created the cylinder we have to create a hole in it to make it look more like a cup.

1. In the 'basic shape' section there is cylinder that is a hole. Drag the shape to grid and place it next to the cylinder.

2. The hole cylinder has to be smaller then the solid cylinder in order to create the wall of the cup. Set the dimension of the hole cylinder to 1.5"LX1.5"WX2.5"H

3. Once the hole cylinder is create it drag it to the center of the solid cylinder.

After they are placed together we are going to group the hole cylinder and the solid cylinder together.

1. On the grid create a box around the two shapes by clicking randomly on the grid and pulling the lines to incase both shapes.

2. Once both of the shapes are inside the red highlighted box, press on the "group" button on the top of the page.

Once the the two shapes are grouped the cup has been created.

Step 3: Creating the Cookie

The next step in making this book come to life to create the cookie that was given to the mouse.

1. Select and drag the half sphere shape from the 'basic shape' box on the left of the screen onto the grid. This can be done on the same plane as the cup or a different one, whatever you prefer.

2. Once the cookie is on the grid change the dimensions to 1.5"Lx1.5"Wx0.25"H.

After you have done this the basic shape of the cookie has been created. To make it look more similar to the cookie in the book, we will have to create chocolate chips to put on top of the cookie.

1. To make the chocolate chip sit on the curve of the cookie you have to put it on a new work-plane down. To do this you need to select the work-plane button from the features on the right of the screen. Once this is selected you can press on a section of the cookie and it will create a new work-plane to manipulate shapes on.

2. Once the new work-plane is created select and drag the half sphere shape from the 'basic shape' box on the left of the screen onto the grid.

3.. The dimensions of the chocolate chip should differ in order to make it seem more realistic. However, I would keep the between 0.15"LX0.15"Wx0.125"H to 0.25"Lx0.25"Wx0.125"H.

4. I would suggest putting a total of 8-10 chocolate chips on the cookie. Repeat the steps above in order to accomplish this.

Once all of the chocolate chips are in place, and the cookie is looking as divine as ever, we must now group! The most important step no doubt.

1. On the grid create a box around the shapes, ensuring that the cooke and all of the chocolate chips are in the highlighted area.
2. Once all of the shapes are inside the red highlighted box, press on the "group" button on the top of the page.

Your cookie is now created. It is time to ship this model to a printer!

Step 4: Saving and Printing Your Design

Now that all of your objects are grouped, you are read to download your design. It is important to know what extension you need to save your file under in order for your print to work. I had to download mine as an .STL, but yours might be different.

1. Click the export button at the top right conner of the page.

2. Once that is chosen ensure that you have the "print all shapes" bubble selected and choose the correct extension needed. After you chose this is should tell you that they are preparing the model. It will then be dowloaded to your computer.

The next step is either the easiest or the hardest, depending on your accessibility to a 3-D printer. I printed my model at the Marston Science Library located at the University of Florida. It was an easy process that included filling out an online form with an attachment of my downloaded file. In a little bit under a week, voila, my print was made.

Once the cup and the cookie are printed out you can paint them, or leave them as is. I would suggest using acrylic paint as it attaches better to the plastic material of the filament.