How to create a text

1. In Object Mode, Add text [Shift]+[A]
2. Go into Edit Mode, delete the text and type your new text
3. Go back into Object Mode
4. Open the font menu as seen in the image below
5. Extrude the text, You can also mess with the other options such as bevel
6. Optional: If you want a different font style you can import that font from where it is saved on your computer. For a mac, your fonts are found in Hard Drive-->Library-->Fonts. For a windows it is usually C-->Windows-->Fonts. (Once imported they are saved in Blender and you can choose the style from the blue button.)
   You can also change the User Settings so that you do not have to take all the steps to find the font as seen below every time.
   
7. Convert the text into a mesh [Alt]+[C]. If you do not do this you, it will not print or let you do a boolean modifier.
8. Position the text to intersect you object
9. Use a Boolean modifier. See this post for more info: http://3dprintingninja.blogspot.com/2014/11/boolean-trouble.html
10. Check for non-manifolds as text often creates them. Usually a quick non-manifold fix for text is to remove the double vertices. See this post for more info: http://3dprintingninja.blogspot.com/2014/07/non-manifolds-your-worst-nightmare.html

Optomize the orientation

Do you need supports for your text?

How small is too small?

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