How to set a default temperature for a filament on the printer (Not the PrusaSlicer)  

RE: How to set a default temperature for a filament on the printer (Not the PrusaSlicer)

Was thinking of an altogether different form of clogging.

RE: How to set a default temperature for a filament on the printer (Not the PrusaSlicer)

Yeah. Sorry about that, English is a second language.

Still, Am I the only one with that issue? 

RE: How to set a default temperature for a filament on the printer (Not the PrusaSlicer)

Yeah, I'd like to change the purge temp. for flex filaments.. the default one makes it drip all the time v_v

RE: How to set a default temperature for a filament on the printer (Not the PrusaSlicer)

This is a good feature request, my recommendation is to open an issue on Prusa's Github ( https://github.com/prusa3d ). Choose the appropriate repository (in this case Prusa-Firmware or Prusa-Firmware-Buddy) and click on "Issues".

I always do this when there's an actionable item for them (for general questions, info, I use the forum). I just created one for the ability to specify different filaments (and hence diferent temps) on filament change in Prusa Slicer: https://github.com/prusa3d/PrusaSlicer/issues/5169 . Other users can give thumbs up on your issue if they have the same problem, so it raises the priority up.

Clogging sucks, I wasted days and days trying to adjust my Mini's settings. I hope you'll find your sweet spot.

RE: How to set a default temperature for a filament on the printer (Not the PrusaSlicer)

Yeah, as florin said its better to open an issue in github. This way the developers can see and answer and maybe add it as a future feature.

RE: How to set a default temperature for a filament on the printer (Not the PrusaSlicer)

@florin, @3dprintedgr, This is a good idea. 

https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/1258

Thanks

RE: How to set a default temperature for a filament on the printer (Not the PrusaSlicer)

Posted by: @kurvalak

Hi,

I'm part of the clogging-club for the Prusa Mini. Whenever I'm not using Prusament, I get clogs quite fast, extruder clicking and I need to clean the gear that push the filament very often (like very). I've read the post that explain how to exit that nightmare with hot ends dissambly, chafing the PTFE tube, clean pulls, have fun with my caliper, etc. This take some time (I will follow those instructions soon I hope) and as some other have found, using a higher temperature seems to work (for filaments other that the Prusament or Prusa).

Ok. So, when I purge the filament or when I want to run the first layer calibration, the Prusa Mini is using its default temperature value for the filament that was used when it was loaded (PLA, PETG, etc). Well my PLA (Sakata 850) seems to work at 245-250 degree (without clogging). As you expect, even if I have defined the filament in the Prusa Slicer, the Prusa firmware is attempting to purge at 170 degrees. As you guest, it clogs and I need to clean the gears. Setting a higher temperature manually before purging does not help as the firmware proudly wait to be back at 170 degree. The First Layer Calibration is the same.

I found a way to "hack" the Prusa Firmware by clicking on the "Change Filament" and select PETG then cancel the action. Prusa Mini then thinks that PETG filament is loaded and now sets the temperature to 230. But it is not enough. I could do the trick for higher settings (260 degrees), but these seems too high (stringing festival).

Any idea how we can define a filament temperature on the Prusa Mini Firmware for those actions (Purging and First Layer Calibration)?

Note: I know how to define a filament in the Prusa Slicer with a specific temperature and I know it is possible to change the temperature when the Prusa is printing. It does not seems possible on the Purge or First Layer Calibration actions.

Let me know if you have a trick.

Happy Clogging Printing !

RE: How to set a default temperature for a filament on the printer (Not the PrusaSlicer)

I have exactly the same problem as you.

When I started with prusament, no problem. I changed filament supplier (only because of a brexit / delivery issue) and suddenly I had a feed issue. Clicking, the gears were turning but the filament just would not feed.

It turns out, it was feeding, but could not get forced thru the nozzle because the nozzle wasn't hot enough. It needed to be 250 degC but the supplier listed it as needing to be 200 deg C. 

Anyway, a lot of time wasted due to that, but getting back to the First Layer Calibration issue, I cant do it anymore because I cant change nozzle temp for that. I can when printing but what to do if I need to do a First Layer Calibration?

That is a very good tip to fool the printer by selecting a material that needs a hotter nozzle temp.

Thank you Kurvalak