Mini height sensor
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Hi
I'm installing the mini height sensor with a Duet 0.85 on a Wanhao I3 . The I3 currently died a z stop.switch. Do I just disconnect the switch when I connect up the sensor. Presumably they would work against each other.
Many thanks -
You have a choice:
1. Keep the Z switch for Z homing, and use the IR sensor just for bed probing.
2. Use the IR sensor for Z homing as well as for bed probing. To do this you need to change your homeall.g and homez.g files. See https://duet3d.com/wiki/Configuring_RepRapFirmware_for_a_CoreXY_printer#Homing_files.
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Will this homing process be covered if I make the adjustments in the web configuration or do I need to change the file manually? Also is it conceivable that the IR probe will work with 3.3 v instead of 5? The light is dimmer on my unit now and I cannot effect any change or make it sense anything in front of it (indexable sensor) DuetWifi
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The IR sensor works equally well on 3.3V or 5V although the LED is not as bright. Check your wiring, see https://duet3d.com/wiki/Connecting_a_Z_probe#Mini_differential_IR_sensor_by_dc42.
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This is the link to the IR sensor that I have the IR sensor is registering the amount of "feedback" that it is getting BUt it never goes over 500 and it never switches off, I have a PNP sensor: http://www.electronicaestudio.com/docs/SHT-015d.pdf
Wired as you instruct I have the VDC on Pin 6 and I have the ground and neutral both on the z end stop.
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I was assuming that you were using the mini IR sensor that I manufacture, which is available from duet3d.com and Duet distributors as well as direct from my Escher3D web site. The probe you link to may not work with a 3.3V supply. See the section on connecting a Z probe in the wiki, in particular the sections on connecting PNP and NPN output sensors.
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Also looking at the spec of it it has a sense range adjustable between 3-80cm