Welcome to K40.se

You can discover information on how to fix frequent problems, update your machine, and get a really good operating laser cutter/engraver here, along with articles, DIY guides, and much more about the well-known K40 or 3020 laser cutter engraver machine.

Buying, installing and upgrading a K40!

Check out our new article series where we purchase a K40, set it up, test it, and then work through each problem with the machine step-by-step.
With a refit to an extended gantry and mobile bed, the series comes to a close.
Click here to go to the new K40 installation article series!

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Latest articles published


Online courses on the K40 laser

About the K40 laser machines

A desktop laser cutter and engraver known as a K40 laser machine is compact, reasonably priced, and widely used. The model number of the K40-III, the first machine of this kind to become well-known, is whence the term K40 originates.

K40 laser machines are capable of cutting and engraving a range of materials, including wood, acrylic, leather, fabric, and some metals (only engraving/marking metal).
They normally have a CO2 laser tube with a power rating of 40 watts, a cutting bed that is around 12 inches by 8 inches, and these features. Hobbyists, manufacturers, and small enterprises frequently use them to produce unique goods, signage, and artwork.

Yet it’s crucial to remember that K40 laser machines are very inexpensive and frequently need updates and alterations to attain the best performance and safety. To ensure that the laser does not endanger the user or anybody nearby, they also need adequate ventilation and safety precautions.

Upgrade your K40 and make it safer for use by using our tutorials and articles!

Frequently asked questions on the K40 laser machine

What is the K40 laser machine?

A small, desktop-sized Co2 laser manufactured in China under the designations K40 or K3020 is available for a very low price.

Where can i buy a K40 laser cutter engraver?

Most websites including Ebay, AliExpress, Amazon, and similar ones sell the K40. See our buying guide

Is the K40 laser machine plug-and-play?

No, it requires attention and should never be started without first being checked over. Read our articles for more on K40 setup.

Can the K40 be used in a business?

You can improve and optimize it for business use based on the volume and the products you manufacture, of course. Check out our articles and upgrades to improve your K40 laser.

Is the K40 a safe machine?

When some electrical and other safety issues have been resolved, it is not any more dangerous than your toaster. Learn about safety and the proper use of your K40 laser machine.

What material can the K40 cut?

Acrylic and plastics up to 4-6 millimeters, wood depending on type up to 6mm. It cannot cut metals of any kind.