High Temp PLA - Polymaker HT-PLA

[The Hat]

Thank you @Redbrickman but that’s not HT PLA..
Here’s what I’m after.. colorFabb black HT filament 1.75mm, 0.7kg
123-3d.ie are trying to source blue HT for me..

 

[Nifty]

Great discussion and excellent points!

I'll need to keep an eye on how "abrasive" it is... especially since not all "abrasive" filaments are equally as damaging. (I remember being surprised that my glow-in-dark filament was abrasive).

From what I understand, PETG isn't much more heat-resistant than PLA, and I don't have an enclosure to print ABS reliably. I'm hoping that this filament prints easy like PLA, but with a little more heat resistance than PETG.

... or it will ruin my printer and/or not live up to the hype. LOL!

 

[Nifty]

more info:

(also, I think it's the glass reinforced that is the most wear on a nozzle)

 

[The Hat]

... or it will ruin my printer and/or not live up to the hype. LOL!

That’s what I reckon, it may be a bit more tolerant of heat but how much more is the question..

I’m still waiting to source a blue filament colour for tests before I commit to several rolls, the HT is twice the price of normal PLA and only comes in 750 gm instead of 1 kg..
I’ve used ASA successfully, but it stinks a lot, and my attempts at PETG and Flexi filament just clogged the hell out of the hot end, they’re just not worth using for all that trouble..

 

[Artur5]

My five cents on what to expect from HT-PLA ( PLA-GF would a more accurate name ). As they say YMMV.

Glass fiber filaments are VERY abrasive. They will "eat" a brass nozzle in just a few hours. It's almost compulsory to use a wear resistant nozzle (hardened still, diamond, ruby, TC ..). Otherwise be ready to replace the nozzle every other day. Those glass fibers give it extra rigidity and hardness ( which is good ) but also worse interlayer adhesion, like any filament filled with solid particles. Therefore, I won't be surprised if the printed parts are more brittle than regular PLA (which is already quite brittle ,to begin with ). As for UV endurance, probably it's on a par with normal PLA ,i.e. rather low. Solid fibers increase of risks of nozzle clogs. Although I print PA-CF with a 0.4mm. nozzle without issues, to be on the safe side, it's preferable to use at least a 0.6mm.nozzle. The external look of CF/GF filaments isn't as smooth as PLA, they feel more rough. That may be good or not, depending on the needs of the user.

All considered, I wouldn't use this filament neither for parts exposed to direct sunlight or strong impacts, nor for small parts needing a high level of detail and a very smooth look
To be frank, speaking for myself, I wouldn’t use it at all. When I need more heat and impact endurance than regular PLA but better looks than PETG, I print with ASA.

 

[Redbrickman]

Thank you @Redbrickman but that’s not HT PLA..
Here’s what I’m after.. colorFabb black HT filament 1.75mm, 0.7kg
123-3d.ie are trying to source blue HT for me..

Oooops
That's what comes from speed reading


The UK store has it in black, maybe they can get some from them?

https://www.123-3d.co.uk/colorFabb-black-LW-PLA-HT-filament-1-75mm-0-75kg-i8758-t27760.html

Bit pricey if you are going to create a whole new Johnny 6.

Option 1

Get one roll and do a test print with it over the summer and see how it performs outside.

Option 2
Go the whole hog and get a new enclosed printer and print some esun ASA+ which is supposedly UV and weather resistant. Its also a lot cheaper per roll so if you are building a new Johnny 6 you might be able to get a new machine and Johnny for the same price as the PLA HT.

Just an idea

 

[Artur5]

Good luck convincing @The Hat to replace his beloved PLA with another filament..

 

[The Hat]

Good luck convincing @The Hat to replace his beloved PLA with another filament

To Feckin right, PLA works, and if you’re going to spend 24/30 hours printing something you want to make sure you haven’t wasted your time, ASA is good but it’s too unreliable to leave it running all night, besides I don’t want to inhale that stuff for more than five minutes..

Johnny 5 proves PLA is good enough to take the strain of the weather and all that mother nature can bring to bear on him, but he won’t last forever..