I had a power loss mid print. The printer did prompt to resume the job but since the print head cooled on the part it pulled it off the build plate.
Prusa has a feature where it moves the print head up and away when power is cut. Does the X1 move the print head up with power loss?
Just curious, how can the Prusa move something when there is no power to move something?
There is power stored in capacitors that is used for that movement.
Prusa has a sensor directly on the C13 connector so after it detects power loss there’s still a couple seconds of worth of power in the PSU caps. I don’t think you can enable such a feature without detecting power loss that early.
Like bigtreetech does. There is a mini ups inside the printer that supplies just enough power to move the head similar to this this is bigtreetechs
I have my printer on a UPS so power outages don’t even matter. A number of reasons…
We’re in lightning season where I am and I’m printing things long enough that weather we didn’t know was coming can sometimes surprise us. I just unplug the UPS when lightning is around and the printer keeps printing with no danger from a lightning hit. It can run the printer for hours and hours.
I don’t want to get the telltale resumed printing layer that doesn’t quite look like previous layers. That’s almost the bigger one. Same as how I’ll swap a nearly empty roll for a new one before a print likely to hit end of roll if I’m not sure I could swap filaments while on infill or nonvisible areas.
The UPS I have synthesizes a sine wave so it’s a pretty pure power output and easy on other things’ power supplies. It also blocks almost all or all spikes on the power line which also helps protect electronics.
@MZip UPS lasts for hours? What kind of UPS is this? I would’ve guessed heating requirements would kill a UPS battery in no time.
It’s an EcoFlow Delta Pro. 3.3kWh IIRC.
I got it as a backup power source with some solar panels instead of getting a generator and the battery type (LiFePO4) doesn’t mind cycles so I also use it to power the printer. It can run it for days and I do decouple from the grid in advance (switched outlet) so it’s always the battery running it.
Just fired up a print and it looks like an X1C pulls about 340W during heating when both extruder and bed are warming up. That was the peak I saw. I don’t have an average value, though.
Okay that is making sense now. That’s a beast compared to the APC UPS backup (only meant to give you enough time to shut down cleanly, or switch over to a generator) which I was thinking of, at about 5% of the cost.
If you’re planning on switching to backup generator while using a APC UPS, don’t. The power coming in isn’t as clean as what the grid delivers, you’ll fry your UPS if you try to keep it running off a generator.
