If any of you have built a fabscan as featured in the magpi it may be using a class IIIa laser line. See the wikipedia link I have pasted below.
I recommend that your replace the laser if it is unsuitable with an inherently safe class 1 laser immediately.
Instructions to do so can be found below.
https://groups.google.com/forum/?hl=en# ... XhXlt2KYn4