Laser Mirror Alignment Tutorial for Vertical Laser XL
In this series we'll be explaining how to align the laser mirrors on your Vertical Laser XL machine. Note that these techniques can also be used for alignment on the blackTooth laser cutter and engraver.

Step 21: Driver Caps, Resistor Networks and Mosfets
This tutorial is dated, if you are considering a CNC for your personal use, we would highly recommend purchasing a kit that is very stable from our wide range of machines available. The resistors are in, right? Ah, I know, you want to see the complete assembly before you dig in. Ok, on to this part of the assembly. Please don't ask me what Mosfets are, but the word sound cool! I can tell you that they stand for Metal Oxide Semiconductor Field Effect Transistor. I have personally read about fifty descriptions of this electronic animal and I still can't figure it out. It doesn't say much for a Berkeley grad! Well, I'm open to some plain English interpretations without the word "drain" in them. Are you still with me?

How to Test a CO2 Laser Tube for Power
In this tutorial we'll explain the process for properly testing a CO2 laser tube for power. In this example we are testing a 40W CO2 laser tube and 40W power supply.