What about effective energy consumption?

Bambu Lab H2D
1

Did you measure the effective energy consumption of H2D?

I would like to understand how much the consumption increases in relation to an X1 printer.
Even if the declared maximum consumption is practically doubled respect the X1, I believe that in reality the increase is limited (for example +30%) given the larger plate and the heated chamber.

What are your toughts or experiences?

2

Around 3:40 he talks about it, seems like it’s 2-3X more power during printing

3

For a start I can tell you my first measurements on my H2D and P1S (EU / 220V).
P1S idle with lights on: 10W
P1S idle with lights off: 9W
P1S bed heating to 100°C: 990W
P1S nozzle heating to 220°C: 50W
H2D idle with lights on: 28W
H2D idle with lights off: 18W
H2D bed heating to 100°C: 1770W
H2D single nozzle heating to 220°C: 110W
H2D chamber heating to 60°C: 600W

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4

Thanks for this. Can I ask does the H2D power supply run with bed heating + nozzle heating + chamber heater on? I think to design these things to a more modest power draw instead of powering everything on at the same time they instead switch things on and off in a sequence. Thus minimising the power draw at any point in time. So power max is ~1800W…

5

Just measured this:
H2D bed heating + single nozzle heating + chamber heating: 1860W
H2D bed heating + dual nozzle heating + chamber heating: 1900W

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6

Thanks a lot for the data.
Have you an average consumpution compared with X1?
It is clear that an average consumption comparison can be done considering very similar printing betwen the two printers, so probbaly is difficult to do these tests.

Anyway, thanks in advance.

7

Peak power at start may depend on which voltage version of machine is being measured. Average power over a job should be about the same between the two versions.

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8

Sorry, I do not have an X1.
And my measurements are somewhat “worst case”. Normally I would preheat the chamber, then start the print. The nozzles reach 220°C in seconds and the bed is not far behind. So the power consuption drops significantly after a few moments.
H2D idle, bed @ 60°C, nozzle @ 220°C, chamber @ 45°C: oscillating 60W - 600W

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