this post was submitted on 20 Aug 2025
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Wasn't a long important print so I sent it anyway

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[–] renard_roux@lemmy.world 31 points 2 weeks ago (4 children)

As someone who is interested in 3D printers, but doesn't have one yet: I have absolutely no clue what I'm looking at 🤔

[–] Kanzar@sh.itjust.works 35 points 2 weeks ago (2 children)

Looks like a filament runout sensor, and there is a tiny tiny little bit of extra filament sticking out the top right. If the print had needed a little bit more filament, it would have pulled through the sensor and the machine would have reported it had run out of filament and paused the print.

Essentially flying really fucking close to the sun and somehow making it by the skin of their teeth.

[–] TerraRoot@sh.itjust.works 8 points 2 weeks ago

Skill baby! /Joking, pure luck

[–] renard_roux@lemmy.world 1 points 2 weeks ago

Perfect, thank you! 😃👍

[–] Test_Tickles@lemmy.world 21 points 2 weeks ago (1 children)

I have 2 3d printers and I don't know either.

[–] renard_roux@lemmy.world 2 points 2 weeks ago

Thank you for making me feel less stupid 😊❤️

[–] MysteriousSophon21@lemmy.world 15 points 2 weeks ago (1 children)

It's a filament runout sensor and OP literally used every last millimeter of their filament spool - like driving your car until the gas light comes on and then making it to the gas station with fumes to spare lol.

[–] renard_roux@lemmy.world 2 points 2 weeks ago

May you be touched by His Noodly Appendage ❤️

[–] Voyajer@lemmy.world 8 points 2 weeks ago (1 children)

It's a filament runout sensor. It's a limit switch that will pause the print if it detects there isn't enough filament to continue so that you can feed in a new spool without having to watch it the whole time.

[–] renard_roux@lemmy.world 2 points 2 weeks ago

Thank you! 😃👌

[–] clb92@feddit.dk 2 points 2 weeks ago

There's still a lot of filament sitting in the Bowden tube between your sensor and the hotend.

[–] The_Hideous_Orgalorg@sh.itjust.works 1 points 2 weeks ago (1 children)
[–] jaark@infosec.pub 3 points 2 weeks ago

This is the way. When I got an ACE I thought that I'd be doing multi-colured prints all the time. How wrong I was. The ability to automatically move to a new reel of filament when one runs out is a game-changer though.