TriangleLab Filament Runout Sensor Detector for 3D Printer 1.75mm Filament

I used the "filament sensor simplified" plugin with octoprint. The thing wires directly to the board, I used pins one and four for GND and 3.3V, then pin seven for the GPIO. The plugin wants to run in BCM mode, so pin seven is GPIO4, so that's what got configured in the plugin. it's connected to 3.3v and triggers when closed. The not-really-but-sort-of-a-gotcha was the actual pause; I'm using a vanilla printer, no display or buttons. I have octoprint set up to sanely handle pause/resume. So when this triggers I use octoprint pause, and teh gcode command is literally @pause; this correctly pauses octoprint as if I had hit "pause", so the rest of the work is all done in scripts and via the UI, which is what I wanted.

This sensor really does work well. The only catch is that you are on your own when it comes to instructions. Thankfully, if you have worked with raspberry pi units before when it comes to wiring in fun accessories like this, then it's somewhat straightforward.1) Cut the tubes down to the size and direction you need them to go in either direction. As someone else pointed out, use a little e-tape or something to make sure the connection is secure else these tubes slide right out (there is zero grip without adding some of your own).2) All three wires go to the pi, and they are labeled in the product description--red should go to any 3 or 5v pin, black should go to any ground pin, and the remaining wire (it will either be yellow or blue depending on what you get) should go to any input number (make note of the one you use). Search online for the pin layout I guess we're not allowed to upload it here (kind of makes you want to bang your head against the wall)3) Download one of the filament runout plugins within octoprint (just reach "filament" and find one you like. When it asks which pin you used, enter the number you chose.Done.It's not bad once you have this information (but hopefully, these instructions help).It works well helping to avoid runouts that could ruin your print. And it all goes together pretty quickly while providing you everything you need (material-wise). We docked it a star though because the instruction situation is just chaotic if you didn't have any experience.

Nice design, Switch toggles well. Not working with Octoprint as of January 2020. I had it attached to a Raspberry pi 2 B+. I will play with some more options before I give up. What's one more day of trial and error. If I can get it to work, it will greatly enhance my printing operations and remove all waste filament.

I'm using octopi with the plugin "Filament Sensor Simplified".For my build, I'm using pin 17 for “3.3V PWR”, pin 19 for GPIO10 (SP10_MOSI), and pin 20 for GND (as per attached diagram)For its settings, I have “Pin number” set to 19, “Sensor is connected to” set to Ground, and “Switch type” set to “Triggered when open”, with the M600 gcode (filament change) action.

My Board Canote sense a Triger. The configuration sense it: "Simple filament sensor on pin e0stop, enabled, output high when no filament, filament present: no", but it does not work. I did however get it to work on my duex5 board. Sumthing Strang going on with Duet 2 E0Stop and E1Stop. Not sore whether it's just my board or not. In Any event I put this command at the bottom of my config file:; Tool 0 filament runout sensorM591 D0 P2 C"duex.e2stop" S1-------------------------------------Board Firmware Configuration-------------------------------------Board: Duet 2 WiFi (2WiFi)Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.4.1 (2022-06-01)Duet WiFi Server Version: 1.26

Instead of a long diatribe about filament sensors, I'll cut to the chase here (and assume you already know that you'll need to figure out how to mount this on your printer, connect it to your board, and edit your firmware accordingly). Bottom-line: This is a nice unit; solid injection molded casing, a simple switch, and nice daisy-chain capability - BUT...you may need to 'tune' your unit. In my case, the unit was prone to lots of false-positives - it would claim I was out of filament and pause the print until I walked over, realized it indeed wasn't out of filament and resume. Naturally, this made me sad - so I disabled the sensor on my printer - ruined a couple of prints, and decided to mess with this sensor.Turns out, removing the false positive couldn't have been easier - remove the four screws holding the casing around the switch assembly, pop out the switch, and apply a slight bend to the metal arm about halfway up the arm; you'll be bending it so the wheel at the end of the arm (when it's at full extension) is 1, maybe 2mm farther away from the switch body than previously. To test your handiwork, reassemble the switch/housing, take a piece of filament, and run it through the sensor (apply a sharp bending force on the entry/exit side of the sensor with the filament, and listen for the switch to 'click). No clicking = no false positives. Just verify you haven't bent the arm too far - you should still hear a click when you remove the filament. Reinstall, and get back to the joy filament sensors bring to all.Oh yeah - the wiring colors - props to go-3dprint.com (no affiliation) for listing this, in case you didn't find their site:Red — 3.3-5VYellow/Blue — SignalBlack — GND

As a single kit install it works as expected.However, this kit lacks the white connector used to daisy-chain two or more sensors together. Even though, the sensor has been clearly designed with this feature in mind.That is why i lowered my rating -1 star.

I have no idea how to wire this filament sensor. I had to but connectors and still no luck. Will have to find a tutorial to help with my issue.

Der Sensor funktioniert bei mir, jedoch hat er bei mir hin und wieder das Problem, wenn das er kur schaltet, obwohl Filament durchläuft. In der Software sollte deshalb auf jeden Fall eingestellt werden, dass mehrfach hintereinander geprüft werden soll, bevor der Drucker dann wirklich stoppt.

You'll have to wire it up but that's easy enough... but it's an excellent and robust sensor.

Easy to setup and does what it's supposed to.

Works great hooked up to my Raspberry Pie.running Octoprint.