usb connection, laser edge and center finder for taig mini mill,Laser 3/8" Shank

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i created the part with lathe,the material is delrin,because i wanted to keep the accuracy,the laser is 650 nm , 5 mw, 5 v ,laser cross.,diameter 12 mm,i soldering the red + wire from the usb to the red + wire to the laser diode,and the black wire from the diode to black wire in the usb cable,Also can be produced in 3 d printer,