Printing ASA & Filtration
I was talking with tech support and they suggested Advanced Filtration for Prusa CORE One for $82 when printing ASA. I read all the reviews and some say the screws that come with it are to short and some say when printing PLA the chamber temp is to hot and they are having to leave the door open or cracked. They set to auto and adjust them temp but no real success. I've looked at adding the rear exhaust tubes and some fans but I'm worried about the fans sucking the fumes out cooling the core to much when printing ASA that will lead to warping.
Anyone have any suggestions? My printer is in my home office and just don't want that smell in the house plus don't need anything harmful in the air for my grandkids.
Also how long do I have to go before I posts will post without a moderator having to approve them? Lol just curious
RE: Printing ASA & Filtration
Just ordered my first spool of ASA, so am having the same thoughts. There's a mod you can print that makes the filter assembly easily moveable, so you get full airflow when you don't need the filter. I'm also pondering an intermediate piece based on a suggestion here, to have opening and closing slots like the top cover does. My printer lives in a basement room and I'm not usually in there when I'm printing, so also considering doing nothing.
RE: Printing ASA & Filtration
I've seen some magnetic rear mounts with 4" hoses and hooked up to a fan to expel the smell and particulates to the outside. But I also heard working with ASA you want a hot chamber and that setup could draw in to much colder air causing some warping. Prusa sells a unit for $82 and the tech said he uses it when working with ASA no problems. It would be nice if that unit had magnetic mount instead of screws. Just don't wanna waste any more $$$ than I have to lol...
RE: Printing ASA & Filtration
I noticed subtle symptoms even in a large garage space when printing PETG on my Mk4S, so I was thrilled when the core one came out and I knew I'd finally be able to capture and exhaust the fumes. I don't use the Prusa filter, but instead modeled up a version of an exhaust duct, and I run a 120mm PC case fan at the far end (away from the printer) controlled by a variable speed "Owl Tree" controller from amazon. This allows me to adjust the fan speed to ensure good chamber heat, but maintain negative pressure in the chamber so that fumes don't leak out. For PLA and PETG, I run the fan on full speed to increase cooling. The fumes go directly outside, leaving no bad air in the garage. Most importantly, no more symptoms. I use a similar setup at work to good effect on a different brand of printer, with the same PC fan setup.
I would not mess with fumes, even the somewhat reportedly "safe" filaments like PLA and PETG. Even if you can't smell it, you're still breathing less than great air.
-J
RE: Printing ASA & Filtration
Would you mind sharing the file you created "is it on printables.com? and that Owl Tree you bought at amazon as I do something just like that.
Mike
RE: Printing ASA & Filtration
If you have the printer in house or a living area and plan to print asa, pc, abs etc definitely invest in some form of filtration. I have the advanced filter, leave it on full time and works well for significantly reducing the oppressive smoke/smell when printing asa/asb. It doesn’t completely remove it as the chamber isn’t completely sealed but I’m happy with it. On the increased chamber temps. The upside of having the adv filter is that the stock fans don’t spin… they are noisey… so it makes pla/petg printing quieter, but the chamber does get warmer, can get close to mid 30s depending on room temp. I’ve never seen issues with PLA but don’t print it as much as other filaments. I have however had some issues with PETG surface finishing due to bridging issues that I’ve root caused as being due to higher temp… however these have all been because the top vent closed itself jsut from the vibrations of the printer. I’ve never had it happen with the vent open after 100s hours printing petg
RE: Printing ASA & Filtration
The key point is that the advanced filter as well as an adjacent air purifier is not good enough. I keep my printer next to an open window with an exhaust fan.
RE: Printing ASA & Filtration
Well what I really liked about TeamD3dp's post was the comment about his "maintaining negative pressure in the chamber so that fumes don't leak out"
RE: Printing ASA & Filtration
@TeamD3dp
Would you mind sharing the file you created "is it on printables.com? and that Owl Tree you bought at amazon as I do something just like that.
Mike
I noticed subtle symptoms even in a large garage space when printing PETG on my Mk4S, so I was thrilled when the core one came out and I knew I'd finally be able to capture and exhaust the fumes. I don't use the Prusa filter, but instead modeled up a version of an exhaust duct, and I run a 120mm PC case fan at the far end (away from the printer) controlled by a variable speed "Owl Tree" controller from amazon. This allows me to adjust the fan speed to ensure good chamber heat, but maintain negative pressure in the chamber so that fumes don't leak out. For PLA and PETG, I run the fan on full speed to increase cooling. The fumes go directly outside, leaving no bad air in the garage. Most importantly, no more symptoms. I use a similar setup at work to good effect on a different brand of printer, with the same PC fan setup.
I would not mess with fumes, even the somewhat reportedly "safe" filaments like PLA and PETG. Even if you can't smell it, you're still breathing less than great air.
-J
RE: Printing ASA & Filtration
I have an advanced filtration unit, have done a little ASA but mostly uses PLA.
I've had no problems with the mounting, and no trouble regarding PLA or door (and the advanced filtration is permanent fitted)
RE: Printing ASA & Filtration
I found the info thanks!!! Ordering parts and printing the others 😁
RE: Printing ASA & Filtration
@michael-kuran
Here is the high CFM fan I'm using for both printers. Many quieter fans don't move nearly as much air. I shared this link in the Qidi adapter Printables listing, but not the Core One listing, sorry.
https://www.amazon.com/Iceberg-Thermal-IceGALE-Bearing-Performance/dp/B08XLV8M6T
-J
RE:
And here is the fan controller:
https://www.amazon.com/Controller-Splitter-15-18W-1-2-1-5A-Output/dp/B0DPZM7T3Q
-J