I thought you might know more about this? What do you think about this?
Originally shared by Christian Werner
I coincidently discovered that such a tiny 65 Watt notebook power supply can power an #Ultimaker.
I used it for printing a dozen 2g pieces in 0.2mm z-resolution with 45mm/s - without the power supply even getting hot.
Thinking about using portable 3d printers, I wonder how much (better how little) power a 3d printer like the Ultimaker actually needs…
#3dprinting
I bought one of these for $10 and it comes in handy for monitoring power consumption.
I used one like this on a few simples to test. Our simples sip 1.5-2.5 amps-- at least they did when I measured them a year ago. The hotend is the sticking point… That’s why I have always experimented with printing off quadcopter batteries… B/c we can.
Brook
I just hooked up my printer to such a cheap electricity meter device. It tells me that the Ultimaker uses between 0.5 and 185 Watts :-/
On average it seems to be using 85W while printing at 45mm/s in 0.1mm resolution, but that’s only a rough estimate.
This would be well below the 200W estimates I’ve been reading about, and good news for mobile printing 
@Brook_Drumm
200W from LiPo batteries? Awesome! I’d like to see this
It’s 12V, so when we run off battery, one 11.1V 3300 battery prints 1.25 - 1.5 hours
@Florian_Horsch_flouS has been running a couple Ultimakers from LiPos: https://www.youmagine.com/designs/mobile-ultimaker-rucksack
I’ve printed for 110 minutes off a car jump starter battery http://instagram.com/p/eA8FWokOwN/
Great for off-grid 3D printing.
Sometimes billed as emergency power source, mine has an inverter for AC power, USB, work light, air compressor.
I was under the impression the biggest consumer is always the heated bed, if any.
We use 65w power supplies in our @Me3D1 machines as standard. We don’t use a heated bed though, that would suck about of power.
@Christian_Werner in our larger RC planes we a pulling 250A (peak) from our 10s lipo packs no problem. The technology has really improved over the last few years and it’s all sooo very cheap now.
Off-grid folks would need to hot swap batteries or have a graceful shutdown to remember last command.
