IR Height Sensor

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  Guide for posting requests for help
  • T3P3Tony

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  Problems installing the IR Probe on the Duet Ethernet
  • Bonzo

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  @blv said in Problems installing the IR Probe on the Duet Ethernet: I have to say that David's mini IR module is the best height sensor to use with the duet board. I am getting the most accurate readings.. Thanks! But in fairness, there are some surfaces that it doesn't work well with, e.g. glass with a coating of glue stick or hairspray on top.
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  SOLVED Random sensor height
  • Synapsis

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  Update: after the print I turned off the printer turned it back on and now the ir probe shows 539 and not 538 when an object is close also now when it nears the bed at 464 it slows down and home s perfectly. I did nothing just turned off then on. We can solved for the moment.
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  Ir probe results
  • gbiski

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  @gbiski said in Ir probe results: Can I ask what I do wrong ? I homed the Z with the Endstop. At the centre of the bed the distance was just equal to be able to drag a paper. So I guess the Endstop zeroed correctly. Your Z homing s set up correctly if, when you home Z and then command the head to Z=0 and some suitable XY position, it just drags the paper. The position after homing is not necessarily Z=0, it depends on what you have in your homing files.
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  Best surface for IR probe accuracy
  • stewwy

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  Ok ok, now I understand, as soon as possible I will do it and post data, thanks for the answers
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  Hotend crashing into bed during auto calibration.
  • TwoTone

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  Thanks. I'm sorry I missed that, I used the reprap config tool for the Config.g file and wasn't even paying attention to the probe type in the command line.
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  Mini differential IR height sensor led not working
  • ricard0g0mes

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  If you purchased the sensor within the last 6 months, and the board hasn't been damaged physically, ask your supplier to replace it under warranty. Otherwise, is there a makerspace or similar in your area, where someone else may be able to help you replace it? I can replace the LED, but unless you are in the UK then the costs of postage to and from me may make it un-ecomonic.
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  DuetWifi Delta calibration and mesh issues
  • morkster

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  The ir sensor is the one sold on 1233d.nl. This one does not seem to be the same one sold on duet3d.com (picture looks different). I've ordered the one from duet3d and hope that one will work better, as even on the white PEI sheet, the results fluctuate.
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  IR probe and Duet Maestro
  irprobe maestro • • Maut

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  Something isn't right, however the probe will still work even if the Duet is configured for analog mode and the IR sensor is producing a digital output. You won't get the benefit of the probing move slowing down when the probe gets close to trigger height.
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  This topic is deleted!
  • chris33

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  ir sensor wiring help
  • chris33

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  See section "Connecting to Duet electronics" at https://miscsolutions.wordpress.com/mini-height-sensor-board/.
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  Which Z-probe to choose?
  • briskspirit

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  @dc42 Overall sheet thickness is 0.85-1.00mm with steel. So PEI should be ~0.5mm, but surface is rough and different colors (blue/white)
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  Drawing / CAD model request
  • Zasquatch

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  Thanks! That should get the job done. I am creating a mount for a cyclops/chimera Aqua - don’t think any exist yet.
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  Suggestion for a new hardware revision
  • gtj0

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  The present design was made so that it can be fitted below the heatsink of a standard E3D V6 or compatible hot end, thereby allowing it to be placed closer to the nozzle.
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  Sensor component fell off
  • Nuffe

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  The phototransistor is SFH3015FA, the IR emitter is SFH4045N. They are available from the usual component distributors e.g. Digikey, Mouser and RS, but not from Farnell/element14.
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  Sensor suddenly changed trigger height
  • Mugga

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  @mugga, I'm glad you solved it!
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  Fiber Optic Extension?
  • gtj0

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  The sensor looks for the point where equal amounts of light are reflected into the phototransistor from each IR emitter.
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  Houston.... We have a problem... Think a big problem...
  • peirof

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  Yes I could look at what components are likely to have failed. However, if the green 3.3V LED is not lighting up and/or multiple ICs are getting hot, this typically means that multiple Ics have failed and the board is uneconomic to repair.
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  Testin Mini Height Sensor
  • peirof

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  Hi, YES... This was
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  Mesh Bed Probing issues
  • bbriggstkd

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  I have the mini differential IR Height sensor. I'll try removing those files and see what happens. I checked and they are there.