Shop time and safety talk
I tried to do this without buying hardware but I came to the conclusion that my time is worth something too :), not to mention my eyes. When working with lasers like this (which I believe should be classified Class 3B) please wear goggles, it’s simply not worth loosing your eyesight over.
So I set of to get the following items.
Stepper motor drivers
Sparkfun (Colorado) sells what seems to be a great unit the EasyDriver
. $15 (need 2)
Laser holder and lens
AixiZ (Texas) sells laser holders. I got the 12x30mm
one with a glass lens. ($20)
Laser Driver with TTL
I could go an modify the constant current laser driver from my previous post, or I could simply spend $6 on these
and be done.
Last but not least the printer port. A quick search of the Linux EMC forums tells me that this card
will do great, and it has two ports to boot! ($12)
Hopefully that is all that I will need for this little project. ( $78 )
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