K40 laser cutter power supply

Most problems with the K40 laser cutter involves the power supply in one way or another. Here is the facts about the laser power supply installed in most K40 machines. Introduction The K40 is a product made with parts to make a small and cheap laser machine. It is not developed or manufactured like this - it´s just the cheapest parts and solutions put in to a metal box. Now when we talk about the Laser Power Supply it is actually not made to...

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...

Upgrade your analog power knob

This is a upgrade of the analog power potentiometer to give you better control over the power level. It´s also easier to remember a number than a location of the pot. You can buy this from me prebuilt, ready to connect to your machine here. Or follow this guide to make your own! If you want to convert your digital K40 to analog with this solution - check out this conversion article. https://www.youtube.com/watch?v=PnDlF1QEebI Tools you need - Soldering iron and solder - Wire stripper and cutter Parts...

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...

Mirror alignment – no more sweat and tears – Updated!

This is the old alignment guide - check out the new guide here! Mirror alignment is the action many of us fear the most, looking at videos and reading guides and after two weeks your mirrors are still not aligned. Many of the guides and how to´s forget the most important part of aligning, that the pieces you try to align actually are aligned themselves. I have therefore made this guide in three parts, with three steps in each part., how you...

Adding more parts to the machine, lights and other.

The K40 machines differs a lot in what parts and function is has added, some has extra lights, laser dots and different parts already fitted, others are bare lasers. These machines are already on the edge of what the power supply can handle, adding more load to it may create problems. To solve this, we suggest that everything you add to the machine is connected trough a own power supply or smaller wall plug with correct voltage. Doing this you can rule...