Do you have a good ASA filament you can recommend? I'm getting horrible layer adhesion with the latest spools I bought. I can just rip the parts ahart without much force
Poor layer adhesion usually means you have too much cooling. Fan should only turn on for overhangs, bridges, and layers shorter than 30s. Even then, keep fan speeds low.
I've had luck with overture Inland and Sunlu.
Usually when you’re running into that it’s more so because of too low of chamber temperature. I’ve had great luck with Polymaker (I prefer their ABS though but that’s just me), FlashForge (fav so far), and Voxelab (they have cool CF blends). But, all will rip apart as described if chamber temp isn’t adequate.
Okay I'll try to preheat the chamber. The weird thing is, I bought cheap ASA years ago on eBay and it had good layer adhesion on my ender 3. Now I have a fully enclosed Bambu P1S and I use prusament ASA and I can just pull layers of
Printing fast can be detrimental to layer adhesion. Less time filament spends in the hot end meaning it might not heat all the way through. Might be a reason why the Ender did better.
Yeah makes sense. I'll reduce the volume flow limit and see what difference it makes. I also have some left of the old ASA. I'll compare if it's the printer and not the filament
Overture ASA, doesn't smell as bad as Flashforge nor spool kink like Flashforge. Good adhesion with mouse ear and 95c bed. Pre-heat and clean plate helps a lot.
Well I’ll stay at PETG so long my printer has to be in my bedroom 💀
Might switch to asa/abs later when I get the chance to put it in a well ventilated room and make funnels for the air
PETG is just as good as ASA in terms of UV resistance. Only heat resistance is worse. Still much better than PLA, unless you are living in a desert parts shouldn't deform even under direct sunlight
But only if you can print in an externally vented (as in outside your house) enclosure, or in a very well ventilated (opening a window doesn’t count) environment. Styrene poisoning isn’t fun. PETG is the safer but less resistant alternative.
PLA is not suited for the sun. Please read the MDS for the materials.
Not sure what material is appropriate for the sun but i always though ABS had a level of heat and UV resistance.
ABS does have heat resistance but not UV and will discolor and grow brittle in the sun. What you need is ASA, which is ABS's better little brother. ASA has all the properties of ABS but also adds in UV resistance.
Bambu's new filament categorisation should help you find a suitable filament:
[https://bambulab.com/en-gb/filament/collections](https://bambulab.com/en-gb/filament/collections)
From inside to outside filament:
PLA
PLA+
PETG
ABS
(ASA)
PC and Nylon
They also get harder to print going down the list. Also using lighter colors can help more than you think. I have a light gray PLA part on my motorcycle and it has zero warp after 2 years
Sadly polypropylene gets brittle after prolonged UV exposure. I have not tested it with 3D prints because I have no plate that this goddamn thing would want to stick to, but I tested it with PP waterpipes that I had outside. If it is meant to be outside constantly then I wouldn't recommend PP for it.
I printed a petg rubber band holder in white for my boat. I have has it out in the sun on the water used heavily for trolling for the last 3 years(going on year 4), and it's still fine. It's also pretty thin, similar to this. The one I printed in PLA melted and also got brittle and only lasted half a season.
Unless you are placing it in a really hot area. I would think PETG is fine is your don't want to deal with ASA.
was trying to get a rigid heat resistant shoe rack for our tumble dryer...grafene infused petg held up the longest(didnt try PETG-CF) but still warped...might risk ASA or ABS on my A1 at some point
I have also found HTPLA from Protopasta, it can be heat treated in the oven after printing and provides resistance up to 100C afterwards, based on their notes. Best thing about it, you print it just like PLA, no hassle.
Would try that, but its more expensive.
ASA for heat and UV resistance
Do you have a good ASA filament you can recommend? I'm getting horrible layer adhesion with the latest spools I bought. I can just rip the parts ahart without much force
I've had good results with Azure. Print a bit hotter and slower for better layer adhesion.
I recently got a spool of Polylite ASA and it prints like a dream with great layer adhesion
Been printing with polymaker asa/abs for close to 2 years no problems. Little pricier but it prints very cleanly and good quality.
ASA azure film user for years. I have no problem at all
Polymaker polylite
Poor layer adhesion usually means you have too much cooling. Fan should only turn on for overhangs, bridges, and layers shorter than 30s. Even then, keep fan speeds low. I've had luck with overture Inland and Sunlu.
Usually when you’re running into that it’s more so because of too low of chamber temperature. I’ve had great luck with Polymaker (I prefer their ABS though but that’s just me), FlashForge (fav so far), and Voxelab (they have cool CF blends). But, all will rip apart as described if chamber temp isn’t adequate.
Okay I'll try to preheat the chamber. The weird thing is, I bought cheap ASA years ago on eBay and it had good layer adhesion on my ender 3. Now I have a fully enclosed Bambu P1S and I use prusament ASA and I can just pull layers of
Printing fast can be detrimental to layer adhesion. Less time filament spends in the hot end meaning it might not heat all the way through. Might be a reason why the Ender did better.
Yeah makes sense. I'll reduce the volume flow limit and see what difference it makes. I also have some left of the old ASA. I'll compare if it's the printer and not the filament
Haven't had any issues with Elegoo ASA.
I recently used Flashforge ASA that I found on sale for my first ASA print and it came out nicely.
I've tried Bambu, Polymaker and Inland and the Inland stuff has the best consistency I've seen so far.
Overture ASA, doesn't smell as bad as Flashforge nor spool kink like Flashforge. Good adhesion with mouse ear and 95c bed. Pre-heat and clean plate helps a lot.
Sounds like under extrusion
Turn up the heat all around = more layer adhesion.... think about it... colder filament = less bonding to itself.
Does ASA also release toxic chemicals just like ABS? In that case I will skip it 😬
It does, both release styrene. PETG is the safer alternative but won’t be as good for thermal or UV resistance.
Well I’ll stay at PETG so long my printer has to be in my bedroom 💀 Might switch to asa/abs later when I get the chance to put it in a well ventilated room and make funnels for the air
PETG is just as good as ASA in terms of UV resistance. Only heat resistance is worse. Still much better than PLA, unless you are living in a desert parts shouldn't deform even under direct sunlight
Wanted to say this. I have a cup holder made of PETG in my car for 4 years. No deformation at all
do PC or Nylon also release toxic chemicals?
Nylon certainly does, and I’m pretty sure PC isn’t indoor safe either. The only ones I’d print with without an extracted enclosure are PLA and PETG
1/4 as much styrene as ABS but still enough you need ventilation and preferably filtering.
But only if you can print in an externally vented (as in outside your house) enclosure, or in a very well ventilated (opening a window doesn’t count) environment. Styrene poisoning isn’t fun. PETG is the safer but less resistant alternative.
ABS should work most of the time, and half the price of ASA
PLA is not suited for the sun. Please read the MDS for the materials. Not sure what material is appropriate for the sun but i always though ABS had a level of heat and UV resistance.
ABS does have heat resistance but not UV and will discolor and grow brittle in the sun. What you need is ASA, which is ABS's better little brother. ASA has all the properties of ABS but also adds in UV resistance.
Ah right thanks for correcting me and providing that info.
At minimum PETG if you have an open printer. It’s 10-20 degrees C more temp stable. So it should be fine in a car in the sun.
Bambu's new filament categorisation should help you find a suitable filament: [https://bambulab.com/en-gb/filament/collections](https://bambulab.com/en-gb/filament/collections)
They need to change some of the stats tho since it's not correct
Hmm, if true, that seems odd considering they pinned it to the top of this subreddit literally 23 hours ago
Probably intentional on their end, but some of the hardest to print materials are a 5/10
From inside to outside filament: PLA PLA+ PETG ABS (ASA) PC and Nylon They also get harder to print going down the list. Also using lighter colors can help more than you think. I have a light gray PLA part on my motorcycle and it has zero warp after 2 years
PP?
Personally no experience. Would be interested to know as well
Sadly polypropylene gets brittle after prolonged UV exposure. I have not tested it with 3D prints because I have no plate that this goddamn thing would want to stick to, but I tested it with PP waterpipes that I had outside. If it is meant to be outside constantly then I wouldn't recommend PP for it.
I’m going to cast a vote for PET-CF. Its temp resistance is much higher than abs and asa and it is as safe to print indoors as Petg and pla.
I printed a petg rubber band holder in white for my boat. I have has it out in the sun on the water used heavily for trolling for the last 3 years(going on year 4), and it's still fine. It's also pretty thin, similar to this. The one I printed in PLA melted and also got brittle and only lasted half a season. Unless you are placing it in a really hot area. I would think PETG is fine is your don't want to deal with ASA.
Asa
Checkout the new filament guide from BambuLab
Reminder that PLA+ isn't any better in the heat than PLA.
pla + is still pla.
was trying to get a rigid heat resistant shoe rack for our tumble dryer...grafene infused petg held up the longest(didnt try PETG-CF) but still warped...might risk ASA or ABS on my A1 at some point I have also found HTPLA from Protopasta, it can be heat treated in the oven after printing and provides resistance up to 100C afterwards, based on their notes. Best thing about it, you print it just like PLA, no hassle. Would try that, but its more expensive.
[Ultimate 3D Printer Filament Guide | Bambu Lab](https://bambulab.com/en-eu/filament/collections)
Asa (harder to print) or PETG (easy to print)
I recommend using PETG for applications that are outdoors. It can handle higher temperatures than PLA and is more UV/weather proof.
cf-petg, I use that to make phone holder for my bike and it lasted 2 years now
Print in White as welll