[510] Can this machine use a bigger laser tube than 80W?

Yes, the vertical laser XL (VLXL) can use a laser tube with a higher wattage than 80 watts. The maximum wattage depends on the length of the laser tube. As the wattage of the laser tube increases, the length of the laser tube also increases. The inside clearance of the Vertical Laser XL will allow a 130-watt CO2 laser tube to be used.