Lasers update

[tubular]

Both laser cutters are currently working pretty well.  

The black laser has a slight quirk in that it cuts during pronterface 'jogging'.   The blue laser doesn't do this.   So that it doesn't mark a workpiece when being set up, switch it to 'disarm' before doing the jogging.   I've put a label on it as a reminder. 

Thanks to those who keep the lasers working.  Much appreciated.