endaf.j
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Power Consumption, actuals

Jan 16, 2016 8:13 pm

I thought I'd report on actual power consumption of the i3 plus.

PLA
Power (average): 78W (Over a 5 hour print at 210C/50C)
Power during printing: 40W to 170W
Power during idle: 10W (no motor's on or heaters, just RAMBo board).

Power supply Power Factor (PF): 0.60 to 0.71 depending on the type of load

I'll see if I can do ABS later on. This is on a 120V system with the supplied 12V power supply.

Just thought some would like to know actuals.

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josefprusa
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Re: Power Consumption, actuals

Jan 17, 2016 1:10 pm

We measured the average consumption for ABS at 90W over the one hour print.
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kevin.b2
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Re: Power Consumption, actuals

Oct 14, 2016 12:43 am

Curious if anyone has done this for the Mk2 now that the bed is slightly larger and using the full V6 hotend?

Don't imagine the numbers would change too much, but thought i'd ask!

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MrMik
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Re: Power Consumption, actuals

Oct 29, 2016 12:11 am

I'd like to know this, too!

So that I can choose the most appropriate uninterruptible power supply for the i3 MK2.

david.t2
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Re: Power Consumption, actuals

Oct 29, 2016 12:11 pm

It survived printing PLA for about 1 hour with APC SmartUPS 1500.

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MrMik
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Re: Power Consumption, actuals

Oct 29, 2016 1:34 pm

I bought a CyberPower Bric 850VA / 510W today and it seems to work (from Officeworks Australia).

Should give me enough time to wait a minute or two to see if the power comes back on, then start the switch-over process to generator power if the running print is important enough. 10-20 minutes of power is all it will provide, but that's enough 99% of the time.

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MrMik
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Re: Power Consumption, actuals

Oct 29, 2016 2:05 pm

I also bought new batteries for my power consumption meter thingy. The maximum power consumption so far (for UPS and Prusa i3 MK2 together) was 125W.

JohnOCFII
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Re: Power Consumption, actuals

Oct 30, 2016 6:13 pm

david.t2 wrote:It survived printing PLA for about 1 hour with APC SmartUPS 1500.
Wow. I'm pleased to read that. I had assumed that the draw from heaters and motors would drain the SmartUPS 1500 in just a few minutes. I have one, but plugged my MK2 into the surge only side!

[I do think I need to replace the batteries, though.]

Thanks,

John
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david.t2
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Re: Power Consumption, actuals

Oct 30, 2016 9:13 pm

JohnOCFII wrote:I had assumed that the draw from heaters and motors would drain the SmartUPS 1500 in just a few minutes.
Almost any UPS is designed to withstand at least 5 minutes battery time on full output load. Since preheated printer consumes about 60-100W of power, it's way too low for this type of UPS to even notice any load on output. ;-)

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