IR Height Sensor

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  Guide for posting requests for help
  • T3P3Tony  

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  IR probe inconsistent trigger height
  • tetele  

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  On first impression, switching to a glass surface made everything better, almost perfect. It created some adhesion problems, but those are easier to fix. Thanks for your advice, guys!
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  IR sensor and 2 differen Flexplate system surfaces
  • caviara  

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  you could do it via filement settings https://duet3d.dozuki.com/Wiki/Filaments create one for like pla on buildtrack and pla on painters tape add the settings in the filament config and add M703 to your start g code
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  IR Sensor LED Doesn't Flash
  • alielsayid  

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  Thanks for your reply. I tried connecting to 5v, still same problem, no flashing on start. Since it's a clone, now I believe it's faulty.
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  IR sensor Z probe on RRF3 config issues
  • alexic  

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  @Phaedrux It says that in the Gcode dictionary, I had to look it up! @alexic said in IR sensor Z probe on RRF3 config issues: @droftarts I am not using that comand, it was there from a configuration file example. I was explaining the error message. But be careful when using someone else’s config, it won’t always suit your machine, and may cause problems. Make sure you understand every command, and use the Gcode dictionary to help you. Ian
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  Can I use an IR sensor as the X and Y endstop?
  • fho  

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  @dc42 said in Can I use an IR sensor as the X and Y endstop?: There are much simpler Hall effect endstops available, all you need is a 3-pin IC and a capacitor. Oh wow, I was not aware of using hall effect sensors for endstops I just googled it. lol That looks like a great way to go. I see a lot of them on amazon with led and resistor on board already. I dont wanna have to solder pc boards so i will try some of these pre made ones
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  Mini Differential IR Sensor
  • Saurabh  

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  It's right where you linked to.
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  Substantial Z offset: Two Z-Endstops and IR-Probe
  • xadox  

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  @Phaedrux Thanks for your very detailed explanation and help. With the mentioned adjustments the problem does not occur anymore. Many thanks for your support
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  SOLVED Unable to home z axis
  • Kayjay  

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  @droftarts Not done the Z probe trigger yet, I'll make that next on the list. Calibrating the extruder was on my list though but thanks for the reminder. I'll use the forum for any further questions, though I think I'm very near done so if there is anything else I'll probably find the topic with a search. Thanks for everything Ian, I am very grateful and you learnt a little yourself too
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  New IR z probe issues
  • agent0810  

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  @Saurabh Please start a new thread.
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  Mini differential ir gives me problem
  • zecchi  

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  Hello how did you calibrate your mini Ir sensor
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  SOLVED Robo3D R2 IR Probe
  • jay_s_uk  

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  Its ok, got it sorted, had it wired wrong. For reference, the wiring from left to right with the LEDs at the bottom is Voltage, Ground, Signal
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  Mini IR Board installation on Duet 2 Wifi Help
  • Karma  

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  How's this? https://miscsolutions.wordpress.com/mini-height-sensor-board/
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  IR-Probe sometimes not triggered?
  • Chriss  

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  We can close that here.... I have opened a other thread. The behavior is completely different now.
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  IR-Probe @Duet 3 Expansion?
  • Chriss  

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  @bearer Thanks.. that did it. I'm a bit confused, it my first reflex was the mode 8 but it did not work. Well, I played a bit with the config in the meantime, that ańd your confirmation did the trick. At least one success today. Cheers, Chriss
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  IR probe as endstop?
  • Chriss  

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  Thank you guys! I will start reading a bit more documentation tomorrow. Nice nice 😁
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  Duet Differential height sensor LED doesn't light
  • KB87  

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  @dc42 Thank you very much for your help on this issue 🙂
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  G30? to set a z=0 and a sensor trigger height
  • baird1fa  

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  Yes this could be done with a macro. You'd need to home the printer in some way first so that you can safely and accurately position the nozzle where you need it. You'd need the sensor for touching the nozzle to be working in the firmware to begin with. Then you'd need to position the nozzle, ensure the probe type for the sensor is selected, touch it, and then switch over to the IR sensor and use G30 S-3 to measure the trigger height and apply it https://duet3d.dozuki.com/Wiki/Gcode#Section_G30_Single_Z_Probe And then M500 P31 to save the G31 trigger height to the config-override file. But if you already have a working touch sensor, do you really also need an IR sensor?
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  IR Sensor and trigger hight
  • observatoer  

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  @Phaedrux YES! This is the solution. Thank you very much
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  IR sensor goes from 0 to 1000 within 0.03mm
  • kenblu24  

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  @kenblu24 I would recommend you follow These instructions to the letter. And as has already been asked, how does the probe act when it boots ? i.e. what does the red L.E.D do ? And kindly post your M558 & G31 Commands in your config.g
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  Strange Behavior on E3D Toolchanger IR Height Sensor
  • tkamsker  

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  What's needed to get IR Sensor working in analog mode on Duet3?
  • gtj0  

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  I have a rework station. They'll never know.
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  Occasional hotend crashes into bed during mesh calibration
  • andymidtf  

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  @andymidtf said in Occasional hotend crashes into bed during mesh calibration: And, about the delta requiering home before probe, how does RRF do that which I would like to do on cartisian? On a delta the towers will home to the max position and then establish the bed position Z0 with a probe. You probably already do the same for a cartesian since the XY position is already homed before moving to the center of the bed to do a G30. So I'm not exactly sure what you mean.
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  Bad read value from dc42 IR sensor
  • Charpy  

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  I'm affraid it may be time to replace the probe.
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  IR probe on Kapton Tape?
  • Eumldeuml  

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  Is there a way of testing that without modyfing the board itself? A resistor in series with one of the connecor wires perhaps?