Killing Power through Smart Plug instead of on Power Supply Unit
 
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123Dprint!
(@123dprint)
New Member
Killing Power through Smart Plug instead of on Power Supply Unit

Hi everyone!

I have a question about my Prusa i3 MK3S+. Does it bother the printer in any way if you switch it off using a WiFi smart plug instead of directly on the PSU?

I want to be able to remotely monitor the printer and then turn it off, after OctoPi (& the camera feed) reports the finished print. Is an IKEA Tradfri plug okay for this or is it bad for the PSU because of the Power Panic function?

If yes, I'll just get a SwitchBot setup, so I can remotely turn off the printer on the PSU directly.

Thanks so much in advance for your help, I would very much appretiate your input so as to not ruin my precious printer.

Best regards,

Philipp

Posted : 12/12/2021 7:42 pm
MysDawg liked
fuchsr
(@fuchsr)
Famed Member
RE: Killing Power through Smart Plug instead of on Power Supply Unit

I do that all the time with my Mk3S and mini printers, no problem.  

Posted : 12/12/2021 8:30 pm
123Dprint!
(@123dprint)
New Member
Topic starter answered:
RE: Killing Power through Smart Plug instead of on Power Supply Unit

Thank you for your quick answer, thank you! 🙂

Posted : 12/12/2021 8:53 pm
renewz
(@renewz)
Active Member
RE: Killing Power through Smart Plug instead of on Power Supply Unit

Is there a way to disable the alarm beep from the power-loss-recovery feature?

Everytime I kill the power it sounds the alarm, GCode commands like M80 (turn off psu) do not work "not implemented".

Posted : 18/12/2021 2:01 pm
fuchsr
(@fuchsr)
Famed Member
RE: Killing Power through Smart Plug instead of on Power Supply Unit

@renewz

 Not following you. I have a smart plug plugged into the UPS, then the Prusa into the smart plug. When I remotely shut off the smart plug, it cuts off power to the printer. So there can't be any sound from the printer, and because I haven't turned off the UPS no sound from that either. 

Posted : 18/12/2021 2:10 pm
renewz
(@renewz)
Active Member
RE: Killing Power through Smart Plug instead of on Power Supply Unit

@fuchsr

how do you trigger the power-cut? I currently have it in Octoprint "after the print is finished" it sends the message to the power plug to cut the power.

4/5 times the power-failure alarm is sounded and recorded "9 Power loss failures".

My guess was that the Printer thinks it is not yet finished and has still some commands in it's queue, but M400 did not help.

I also use an UPS -> SmartPlug -> Prusa, I had this setup with my old printer which had no power-loss-recovery feature.

I will play around with some test gcode and narrow down the cause.

Posted : 18/12/2021 4:06 pm
MysDawg
(@mysdawg)
Estimable Member
RE: Killing Power through Smart Plug instead of on Power Supply Unit

 

Posted by: @fuchsr

@renewz

 Not following you. I have a smart plug plugged into the UPS, then the Prusa into the smart plug. When I remotely shut off the smart plug, it cuts off power to the printer. So there can't be any sound from the printer, and because I haven't turned off the UPS no sound from that either. 

I have my printer set up the same way. No issues....

Posted : 18/12/2021 4:21 pm
fuchsr
(@fuchsr)
Famed Member
RE: Killing Power through Smart Plug instead of on Power Supply Unit

@renewz

Okay now I see. I'm not doing anything like what you described (cut off power automagically after a print finishes). I just use the smart plug to manually (or rather, orally via Alexa) turn the printers on and off and -- most importantly-- remotely kill a job if I see on my video feed anything is going wrong.  But I don't  use Octoprint to achieve any of this   

Posted : 18/12/2021 6:51 pm
renewz
(@renewz)
Active Member
RE: Killing Power through Smart Plug instead of on Power Supply Unit

using the psu plugin with it's `power off when idle` works, so it is likely when the printer has gcode running it will alert.

I will try to make my shutdown script to be run with a slight delay in the background so the printer can finish in peace.

Posted : 18/12/2021 7:53 pm
MysDawg liked
MysDawg
(@mysdawg)
Estimable Member
RE: Killing Power through Smart Plug instead of on Power Supply Unit

Do they have a plugin for the Kasa switches?

Posted : 18/12/2021 9:56 pm
MysDawg
(@mysdawg)
Estimable Member
RE: Killing Power through Smart Plug instead of on Power Supply Unit

 

Posted by: @fuchsr

@renewz

Okay now I see. I'm not doing anything like what you described (cut off power automagically after a print finishes). I just use the smart plug to manually (or rather, orally via Alexa) turn the printers on and off and -- most importantly-- remotely kill a job if I see on my video feed anything is going wrong.  But I don't  use Octoprint to achieve any of this   

This is exactly how my system is set up

Posted : 18/12/2021 9:58 pm
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