Adding a digital amperemeter to your lasercutter

DISCLAIMER: ONLY CONTINUE READING WHEN YOU KNOW YOUR WAY AROUND HIGH VOLTAGE!!! EVERYTHING YOU DO TO YOUR LASER IS AT YOUR OWN RISK! Lasercutters are great. Especially since they got relatively cheap (you can buy a “40W” K40 Laser on ebay for sub 400€). Since I am a newly certified laser safety officer in my hospital I felt I need such a machine. However I decided against a K40 and opted for a more powerful, more big “50W” 300x500mm Lasercutter (one of the “China blue” variety – but it is actually green). Long story short I am quite impressed, delivery of the ~100kg palette was really quick (as in faster than the safety-googles). The machine is still quite well tuned, the beam seems to be aligned quite well. All in all the machine is not the death-trap I thought I

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