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Voron 2.4 300mm Skirt with Stop Button — zdjęcie 1
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Voron 2.4 300mm Skirt with Stop Button

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Modificaiton of the standard Voron 2.4 Skirt to include a 15.75mm Stop button

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I wanted to be able to shut down my 24v power supply easily. (I accidentally fried my stealthburner LEDs when installing the faceplate under power, oops!) 

My solution was as follows:

  1. This stop button from Aliexpress (Type1, 16mm, CN, 1NO1NC). Hole is 15.75mm
  2. A YYG-2 relay to interrupt the AC input to the 24v PSU
  3. I want the Pi to keep running when the 24v is shutdown, so an RS-25 power supply
  4. Oh wait, none of this fits, so I need to swap to a UHP-200-24 power supply to make room.
  5. I have the relay set up to be “active low” with the stop switch providing ground when in the "run" position.  when pressing the switch, the low signal is broken and the relay opens.

I was considering hooking the relay up to the MCU/Klipper.  This is a valid option, except I use a Nitehawk-SB.  When the 24v is off, the toolhead MCU is disconnected from USB, and so Klipper cannot start.  If you had the PSU controlled by klipper, then you wouldn't be able to ever get things going because you have a chicken/egg situation with the MCU power.  I'm happy with just a button to turn off the 24v when I need to.

This isn't an “Category 0 Emergency Stop” I don't think, because the relay can fail closed.  I look at it as a 24v shutdown button.

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