clearly PLA was not the right choice - what filament do you recommend?
 
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clearly PLA was not the right choice - what filament do you recommend?  

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Rob Latour
(@rob-latour)
Eminent Member
clearly PLA was not the right choice - what filament do you recommend?

I printed a bunch of these using PLA:

https://www.printables.com/model/481346-solar-light-fence-bracket-brace

and they looked great until yesterday where I live it reached over 35 degrees celsius and this happened:

https://ibb.co/sJ9YrNG

Also, it gets very cold where I am; -30 degrees celsius or below.

While I suspect it would be better to print with a lighter colour, I would like to print in black so to that they look good on the fence.

I have a MK3S, what is the best type of filament should I be re-printing them with?

Posted : 01/06/2023 2:21 pm
René
(@rene-3)
Reputable Member
RE: clearly PLA was not the right choice - what filament do you recommend?

PLA is a great kind of filament.

But not suitable for outdoor use.

The material cannot withstand high temperatures and UV rays shining through the sun nicely in your garden.

I think ASA, ABS or nylon are better suited for your object.

Posted : 01/06/2023 2:36 pm
Walter Layher
(@walter-layher)
Prominent Member
RE: clearly PLA was not the right choice - what filament do you recommend?

Even PETG is a lot better suited for outside use. I have several PETG prints that have been outside for years and get quite a bit of direct sunlight, like a weather station, a bird feeder, some attachment brackets etc. and they show no sign of degradation so far. PETG is also easier to print well than ABS/ASA.

Posted : 01/06/2023 3:56 pm
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RedDawg
(@reddawg)
Reputable Member
RE: clearly PLA was not the right choice - what filament do you recommend?

I can also recommend PETG, but black might be pushing it because of higher heat absorbshion. Try one and test before committing to the lot.

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Posted : 01/06/2023 4:37 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: clearly PLA was not the right choice - what filament do you recommend?

PETG, PETG-CF, ASA, ABS, etc. all good choices. See the Prusa materials table for details: https://help.prusa3d.com/materials

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Posted : 01/06/2023 4:51 pm
Rob Latour
(@rob-latour)
Eminent Member
Topic starter answered:
RE: clearly PLA was not the right choice - what filament do you recommend?

Thanks I just ordered some PTEG.  

 

Posted : 01/06/2023 5:18 pm
jsw
 jsw
(@jsw)
Famed Member
RE: clearly PLA was not the right choice - what filament do you recommend?

I use ABS or ASA for items that will be used outdoors or in a hot car.

PLA will most definitely sag.

Posted : 01/06/2023 9:58 pm
Diem
 Diem
(@diem)
Illustrious Member
RE: clearly PLA was not the right choice - what filament do you recommend?

For this sort of job I've recently been using: https://3dtomorrow.com/product/3dtomorrow-biopro-3d-printer-filament-1kg-1-75mm/   It stands up to heat and UV well.

'though in your case PETG might be enough if you can protect it from UV, a good quality paint is your best protection but you will need a primer suitable for PETG.

Cheerio,

Posted : 01/06/2023 10:45 pm
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