Analogue digital control version k40 power control psu.
K40 laser cutter wiring diagram.
Use heat shrink tubing to cover the splice.
The laser switch is a push button switch that sure looks like it acts as an enable for the laser driver output.
By hp persson diy how to diy electronics k40 laser cutter 41 comments this is a upgrade of the analog power potentiometer to give you better control over the power level.
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Remove disconnect the pot meter digital control middle wire from the in terminal and use a new wire to connect in into the controller far out most terminal as depicted with a white wire in the photo below.
It s also easier to remember a number than a location of the pot.
By hp persson diy how to electronics k40 laser cutter k40d laser cutter 34 comments adding a ma meter to your machine is one of the most important modifications you can do on this machine.
If you are considering buying or have just purchased a k40 chinese laser engraver this knowledgebase article is the perfect place for you to start well except for maybe the safety article we have done hundreds of hours of research on every aspect of these units and with great input from many great people have navigated through the initial rough waters of getting a poorly made chinese.
From this laser power supply strip only the in connection is.
In all cases some combination of their signals perform the same basic functions of.
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K40 whisperer is an alternative to the the laser draw laserdrw program that comes with the cheap chinese laser cutters available on e bay and amazon it s an excellent free program that works with a pc i use it on a cheap netbook and with a lot of messing around you can get it to work on a mac i haven t had any.
My question is how the heck to i reconcile this with the wiring diagrams that are shown for the reprap and a different laser power supply.
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The current control is of course tied to the 0v in 5v connector.
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What software should i use for my laser.
The ma meter will read the power trough your laser tube allowing you to set the power to a safe value to prevent the laser tube from over powering and.