If anyone are interested i captured the power consumption with home assistant every second during 2hous PLA print.
The P1S the first 30-60 seconds draw 850W and later go down to 30-50-70W aprox, see the images
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First short burst is inrush powering up the machine although 30 - 60 seconds is quite long.
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First burts is bed heating and little preheat of hotend it’s 15-30 seconds maximum.
Another capture from todays print (it’s 15-20 seconds).
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All are captured in 220v AC.
I see in all prints the power consumption with my P1S with PLA is 0.85Kw/h (0.15€ hour ± in my country).
I my country, it’s $0.30, I might buy a smart plug
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Out of curiosity… I have recently started using my printer daily (I have just one printer). How much does that raise your monthly electric usage? I am in Texas, and of course, in the Summer there’s a lot more electricity use for the A/C, but I am wondering if the daily use of the printer is having a big impact.
Thanks
Another thing, with cool plate supertack power consumtion is 50-70w but now i used PEI for other filament and the power is 315/350W
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The P1 and X1 Series have an average power consumption of about 0,1kW.
Your printer is NOT able to draw 850W, because the power supply is rated at about 125W. Even if it would draw that much current for only a second, your main fuse would literally evaporate.
You should check your power consumption graph in HomeAssistant, its possibly wrongly configured.
Also, what kind of measuring device do you use? Because Tasmota means you’re probably using some chinese “smart home” c*ap from Tuya or Sonoff. These things are note only unreliable, but also so badly built, they are ticking time bombs. Get rid of them, buy yourself some proper measuring hardware from a trusted brand like Shelly, Eltako or ABB.
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This is incredibly wrong, the 125W power supply you are looking at is only powering a subsection of the equipment. The Bed pulls straight from line voltage. Follow your own advice, and meter at the plug.
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edit: I may have been confused by your reference to “main fuse” in my reply, as normally here this refers to the central fuse connecting the household to the electricity grid, meaning everything in your household goes through it. Since you probably meant the printer’s fuse, note the replies after mine, the second in particular. Note that this is also why the startup time on 110VAC is a lot longer on the affected printers - they just can’t heat up as fast.
I think you are out by an order of magnitude, or are not considering the fact this is on 220VAC (or 240VAC in my case)… 850W will not blow our (220V/240V) main fuse by a long short, not when appliances are up to 2400W (on a normal 10A circuit). I’m not sure with my P1S, but my A1 I measured at ~1270W for about 20 seconds, and then about 70W while doing most of its calibration (i.e. only running heatbed while waiting for nozzle to cool down again, etc), and ~130W while printing, and these measurements have been reproduced by several people now.
The bed does not go through the power supply, it is switched directly from the mains.
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Only the A1-Mini heat bed is powered by the 24V power supply.
The X1C, P1S, P1P, and A1 heat beds are all powered directly by mains voltage, and are not limited by the 24V power supply output. At 220V, the 6 amp fuse of a X1/P1 printer will allow up to 1320 watts of power usage, though the maximum consumption is only 1100W.
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People responded for me…
And for your info 220v in my country not 110v (235/240±).
Electrical protection in the house are for 16A 3680W total power for the plugs (all or one plug only).
As a newbie to the 3D world of printing, I have a tendency to overthink things… Learning that the printer has two power versions (110v - North American style and 220v - European) Bambu Labs clearly states that the P1S Printer here in Canada rates it as having a 350 watt peak power at 110 (standard) volts.
It is also noted that the same printer being sold and used in Europe using 220 (standard) volts and uses 1000 watts peak power.
With that noted from Bambu Lab’s website, I am somewhat confused why others have suggested 850 watts at 220 Volts?
I am planing on using my UPS from Cyber Power I purchased approximately 3 years ago that provides a maximum volt/Amperage of 1500 VA and 900 watt peak power to safely operate my P1S Bambu printer with the AMS basic filament holder. (non heated)
I do NOT have intentions of operating the 3D printer during a power outage except to safely power off the printer that will also save on having to replace the printers motherboard(s) that I understand could burn out due to a spike in electricity before, during or after a power outage.
Correct me if I am wrong!