Can I power Polydrier directly from 24V PSU side?
Asking if there is enough spare power or anything against this solution
Drier spec:
.
Best Answer by Jürgen:
If you think you will power the dryer from the printer's power supply, forget it quickly! The power supply does not have enough free power!
That's my gut feel as well. 68W extra load seems to be a lot for the 240W power supply in the Core One -- why would Prusa have paid for that much extra power?
Have you measured the actual power consumption of the Core One by any chance? Available data vary quite a bit: Prusa states 110W (which must refer to the already heated-up state, when the nozzle and bed heaters are only active with some duty cycle). Some users on Reddit claim to have measured more than 300W while heating up (which would already push the power supply's rating).
RE: Can I power Polydrier directly from 24V PSU side?
Power budget aside -- wouldn't you want to run the dryer (also) when the printer is not running? E.g. to dry filament for a few hours in preparation of a print?
RE: Can I power Polydrier directly from 24V PSU side?
Power budget aside -- wouldn't you want to run the dryer (also) when the printer is not running? E.g. to dry filament for a few hours in preparation of a print?
I've read some people running their filament from a heated / active drybox into the 3D printer, if it's a high temp filament it can increase flow consistency, or if it's a hygroscopic material in a damp environment (although the latter should be able to be circumvented by just drying first and then running the 3D printer from a sealed not-active drybox).
RE: Can I power Polydrier directly from 24V PSU side?
The specifications on the type plate are probably from the dryer's source. If you think you will power the dryer from the printer's power supply, forget it quickly! The power supply does not have enough free power!
RE: Can I power Polydrier directly from 24V PSU side?
If you think you will power the dryer from the printer's power supply, forget it quickly! The power supply does not have enough free power!
That's my gut feel as well. 68W extra load seems to be a lot for the 240W power supply in the Core One -- why would Prusa have paid for that much extra power?
Have you measured the actual power consumption of the Core One by any chance? Available data vary quite a bit: Prusa states 110W (which must refer to the already heated-up state, when the nozzle and bed heaters are only active with some duty cycle). Some users on Reddit claim to have measured more than 300W while heating up (which would already push the power supply's rating).
RE: Can I power Polydrier directly from 24V PSU side?
I would not do it. That is a lot to add to the power supply. If Prusa wanted to run something like a drier too, they would have used a larger supply. For the Core One L they went with mains power for heating.
In addition, 68W seems low for a drier. The one I use is 280W. I'd have my doubts about it's effectiveness, but I have not tested it. A quick look seems that the reviews are mixed.
Regards,
Mark
RE: Can I power Polydrier directly from 24V PSU side?
I had a Polydryer for a week. It's convenient, it just doesn't get hot enough for engineering filaments. They claim up to 70° (which is still low for Nylon) but I was only able to measure around 55° max inside the chamber.
RE: Can I power Polydrier directly from 24V PSU side?
Thank you all for answers, I call case closed.
If you think you will power the dryer from the printer's power supply, forget it quickly! The power supply does not have enough free power!
That's my gut feel as well. 68W extra load seems to be a lot for the 240W power supply in the Core One -- why would Prusa have paid for that much extra power?
Have you measured the actual power consumption of the Core One by any chance? Available data vary quite a bit: Prusa states 110W (which must refer to the already heated-up state, when the nozzle and bed heaters are only active with some duty cycle). Some users on Reddit claim to have measured more than 300W while heating up (which would already push the power supply's rating).
In case i want to speed up and support chamber heating its just enough reason to not to do it. And from my observation, when printing heated PC/PBT with fibers it seems to flow and bend in tube nicer, but I didnt know its a thing, Im basicly new into 3d printing.
@mark
From my 3 months use: For PETG, TPU its ok, for PC (and propably other materials that sweats in higer temps) not really but its great for keep it dry. All in all thats just a little heater with fan, whatever they name it.