Here is some tips from fellow crafter Cathie Rigby:
Above Rubies Studio pdf file cutting guide for all types of material.
download here: Cricut Cutting Guide
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This file is about 3 Megabytes; depending on your connection, it may take a minute or longer to completly download.
Once you've saved the Cricut Cutting Guide to your computer and have added email@example.com to your address book, click here to return to the Above Rubies Studio website. Need Help? Something Not Working? The download link above isn't working If the link above is giving you trouble, "right click" on this link and choose "Save Target As". A download popup dialog should appear. From there, save the guide to your desktop!
I've downloaded the file, but it won't open? The Guide is in the PDF format. Most recent computers have Adobe Reader pre-installed, so you should be able to just open it up once downloaded... but if you can't, Click here to make sure you have Adobe Reader installed.