New version 1.2 !
Ending sparks are togglable
You can now choose differents models and how much damage the laser does ;)
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You can toggle the laser on/off by pressing a numpad key. It is still compatible with the Wire Mod (On output/input).
There are 3 options : Toggle / Auto-weld to world (weld the laser even if not aiming at a prop) / Start On.
You can choose the material, length and width of the laser too.

If you found a bug (or want to give me some Lua Kings :P )
http://forums.facepunchstudios.com/showthread.php?p=4889422