This is looking great. One note, on page 6, under “Preparing Your STL File,” you tell them to use the Feeds and Speeds chart to set their options. However, if you are using MeshCAM you can only change the RPMs by editing the actual tool description. You might want to make this clear, and show them how to do it.
Also, I respectfully disagree with using this line in your guide:
Insert the cuting tool inside the colet making sure to adhere to guidelines by the manufacturer on how to place the cuting tool and then tighten the colet.
Unless you are planning to actually have those guidelines available right next to the machine, it’s basically meaningless for students. Depending on their age, most of them will just ignore it, and the more conscientious will be stymied trying to work out which manufacturer, and what the guidelines are, and how to find them, etc. Better just tell them exactly what you want them to do, in my opinion.
If you do decide to keep it in, you should correct the spelling of “cutting” and “collet” which are both missing their double letters all throughout.
thanks for making and sharing such a great guide!