DIY article how to fix your laser head

This article is about a popular laser head avalible on ebay and other places. We sell this already modified in the store here - and as a bigger kit with mirror holders here. If you want to do the upgrade yourself, here is the article for you! And here is why you want to upgrade your laser head The screws bend and rust/oxidize and get stuck very easy (brass). New from steel will work much better. The harder springs will prevent the mirror from...

Mirror alignment – the ultimate guide

Welcome to the ultimate alignment guide for your laser machine. This guide has some tips and hints regarding the popular K40 machine type, but this can be used for any laser machine on the market as the science behind movement of a laser beam is the same on all of them. 90% of the errors in laser machines are not skewed or non-square gantrys, it´s bad alignment of the three mirrors in the machine not lining up with each other. Some of...

Setting the proper focus in your K40

Focus is very important for your work, if you are out of focus you will lose power or get strange effects when engraving. This is the most common issue with new users on the k40 machine, the information from the seller how to use the k40 is very limited so this information is not there and a new user tend to search for other problems causing it, when it´s actually the bed and focal distance doing it. Lens setup calculator Check out...

Upgrades & improvements on the K40 laser cutter engraver

The K40 machine is a awesome little product who makes it easy for hobby and semi-pro use to get going with laser cutting or engraving. It´s far from perfect and needs a hand to work as you intended. First reading should be the article about checking your machine - read it here. Water cooling Coolant tank Depending on where you live, it might be a good option to have a bigger tank 15-25L or more. If you live in a hot climate, you need a...

Cleaning your mirrors and lens

Mirrors ans lenses are delicate products and should be handled with care. Here is my suggestion of how to clean your mirrors and lenses with least damage and risk of scratching the surface. Suggested tools - Gloves (wool/cotton or ESD type) - Tweezers - Denatured alcohol or Isopropyl alcohol - Micro fiber cloth Caution Si-mirrors and ZnSe lens has a coating you dont want on your fingers, aswell as your fingers contain oils you don´t want on your lens/mirror. Always use gloves when handling mirrors and lenses. There...