DIY 3D Tech

The On-Line Magazine for 3D Printing & CNC

eBay K40 CO2 Laser – Alignment of Optical Train and Gantry Part 3!

In this episode, we will be re-installing the gantry into the k40 laser sheet metal and discuss the final steps you will need to take to ensure that gantry and therefore optical train square and true. Keep in mind you should be within-in sub 1mm tolerances for the effective performance of your laser over a lager area.

Part 1 of the series:
Part 2 of the series:

CO2 Laser Safety Glasses:
k40 Air Assist Head:
Looking for a CO2 Laser:

Want to see what we are up to daily? Check out our regular YouTube Blog posts at:

Please visit for more information on this and many other projects!

Check us out on Social Media to see what we are up too as we always have something cooking in the shop!

-Follow us on Instagram:

-Follow us on Tumblr:

-Follow us on Reddit:

Subscribe to the DIY3DTech YouTube Channel:

Subscribe to the DIY3DTech OpenSCAD Channel:

If your looking for looking 3D Printer, Laser Cutter and CNC Swag (T-Shirts, Hats, Mugs, etc), please support the channel by visiting our online shop at:

Are you a retailer or product manufacture and would like your product reviewed? Please contact us at info[at]

Tags: #DIY3Dtech