3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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[Support request] Hi everyone! i have a problem with the runout sensor (self.3dprinting)

submitted 1 year ago by Redkefy to c/3dprinting

3 comments fedilink hide all child comments

Basically the filament run out sensor on my Anycubic Kobra Neo is triggering randomly and this is compromising the larger prints.

Did you have the same problem or do you know how i can fix it?

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[–] Fauxreigner 2 points 1 year ago (1 children)

Make sure both ends of the cable are seated firmly.

Open the sensor up and check for any debris that may interfere with the microswitch.

If both of those are ok, you'll want to check continuity of the cable with a multimeter, to make sure the cable hasn't broken internally somewhere. Once that's confirmed good, tape the switch closed and test continuity through the switch. Typically those sensors are made with really cheap microswitches, so you may need to just swap it out with a more reliable switch.

Good news is they're extremely simple, and so pretty easy to test.

[–] Redkefy 1 points 1 year ago (1 children)

Thanks, right now the filament is loose, i will try to make it more guided and see if that helps. Plan B is to open the sensor and see if everything is ok.

[–] Fauxreigner 2 points 1 year ago

Yeah, if the filament is loose that should be your first step, it may not be able to keep the switch closed consistently.