on/off inverted help plz

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rebel951
Posts: 1
Joined: Fri Nov 10, 2017 12:02 am

on/off inverted help plz

Post by rebel951 »

hello i m new here i have a chinease laser engraver , i had a 500mv laser on ,it was hard to have it burning by adjusting the focus so now i bought a 15w , it have it own power supply , so i made a bridge to connect it on my board , but now when a press on it goes off and off go on , to engrave ... i got the opposite ... like the black where the laser sould engrave it does not engrave , the white where the laser should be off it engrave i try benbox , laser cad , gbrl but only benbox work as software
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