PNP vs NPN EXPLAINED! Proximity Sensors on CNC Plasma Cutter Router Table



Posting this video because it was really confusing to order a replacement sensor for my Baileigh PT-22 CNC Plasma table. Their wiring diagram shows the sensors, but doesn’t specify what kind they are. Being stubborn I opted to not call the manufacturer and figure it out myself instead.

If you need to order a new proximity limit switch for your CNC plasma, router, 3d printer, laser, or other kind of cutting table, hopefully this video helps!!

Here is a link to the two sensors I used in the video

NPN NO
https://amzn.to/2YtvoyO

PNP NO
https://amzn.to/3FrYgIF

For more Tips, Tricks, and Tools for the Home Metal Fabricator
go to: www.DIYMetalFabrication.com

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