Can anyone help with a small print in high-temp material? Prusa support told me to print it myself. (but that is the problem)
 
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Can anyone help with a small print in high-temp material? Prusa support told me to print it myself. (but that is the problem)  

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SeanF
(@seanf)
Utenti
Can anyone help with a small print in high-temp material? Prusa support told me to print it myself. (but that is the problem)

Hi folks,

I'm hoping someone out there might be willing to help me by printing a replacement part for my two nextruders that Prusa, for some unknown reason, decided to build their hotends using a printed (why?) precision piece from PETG, which is a relatively low-temp material (double why??).

The issue that I am facing is when I print with PETG, even at a relatively low temp of 225-230, for more than a couple hours, the "Nextruder Main Plate" (which acts to guide/constrain the filament while it is in contact with the drive-gear, and is inexplicably made of PETG) starts to get soft and tacky, so the PETG I am trying to print with, starts binding and eventually causes a jam and print failure.

I read recently that the new (very overpriced) enclosure ships with some of the parts from the original printer in more temp resistant filaments, and among them is this main plate part...

I contacted support to ask if I could purchase two of these "plates" in a higher temp-resistant filament, so I can finally print up to the 300c they claim the printer can do.... or even to 250 or so, for an extended time, without the hotend starting to grip the filament I am trying to print.

Their answer...  was  to "print the parts yourself in the higher temp filament".    Which I would gladly do, IF I COULD, but that isn't an option.
And apparently not being able to print to the advertised temps. is somehow "not considered a warranty issue".   

Not exactly the level of support I was expecting after paying nearly $3k USD for a printer.    If only I had gone the bambu route...

But, I digress...

So, if anyone here would be willing to print a couple of these parts for me, in the highest temp-resistant filament possible, please PM me....
I would be very grateful, and I would obviously be happy to pay for time and materials as I am not asking for anything for free.

There are several "improved" models online, of which this one seems to be the nicest:

https://www.printables.com/model/977122-xl-nextruder-main-plate-better-filament-guide

Thanks in advance!

-Sean

Postato : 29/09/2024 2:19 pm
_KaszpiR_
(@_kaszpir_)
Honorable Member
RE: Can anyone help with a small print in high-temp material? Prusa support told me to print it myself. (but that is the problem)

on non-official discord https://discord.gg/b9wC2uSH there is a channel named #print-it-forward for exactly such requests.

See my GitHub and printables.com for some 3d stuff that you may like.

Postato : 29/09/2024 11:15 pm
Brian
(@brian-12)
Reputable Member
RE: Can anyone help with a small print in high-temp material? Prusa support told me to print it myself. (but that is the problem)

I'd be surprised if this is your true issue.  I have all of the stock Prusa parts (original PETG) and print in an enclosure.    I print PETG 90% of the time and have done 20 hours prints with no issue. 

No jamming or softening of parts.

I assume you have an enclosure?  Which enclosure are you using?

 

Postato : 30/09/2024 12:24 am
Diem
 Diem
(@diem)
Illustrious Member

Agreed, no problems at those temperatures here with PETG parts; you may have a misdiagnosis - look for the source of the heat that is building up.

Cheerio,

Postato : 30/09/2024 8:42 am
TeamD3dp
(@teamd3dp)
Trusted Member
RE: Can anyone help with a small print in high-temp material? Prusa support told me to print it myself. (but that is the problem)

I tend to agree with the previous responses, unless perhaps you are in an extreme environment and your ambient temps are much higher than the norm. I print almost exclusively with VoxelPLA brand PETG, which calls for pretty high temps ~260+ and have done sustained printing in my garage in the inland Southern California heat without issue as well.  I won't discourage you from swapping the parts, since I'd also prefer to have high temp materials in as many places as possible...but there are quite a few mk4 owners out there printing ABS and ASA in enclosures and I suspect we'd be hearing about this widely if it was common.  

-J

Postato : 30/09/2024 8:56 pm
Brian hanno apprezzato
_KaszpiR_
(@_kaszpir_)
Honorable Member
RE: Can anyone help with a small print in high-temp material? Prusa support told me to print it myself. (but that is the problem)

One more idea, maybe it was printed in PLA and not PETG? ( I remember there happened to be some filament mislabelings in the past).

But the part would be brittle and runny in higher temps ans not elastic as PETG.

See my GitHub and printables.com for some 3d stuff that you may like.

Postato : 01/10/2024 5:56 am
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