DIY Filtration Settings
I printed this DIY Filtration Unit for my Core One but am wondering if anyone has played with the fan settings introduced in firmware update 6.3.1? I plan to print Prusa PC Blend, PC-CF, and maybe some Nylon (with or without CF, not sure yet). I know that these need high enclosure temperatures and I'm not sure how active venting of air would affect the print.
Best Answer by yblaser:
I made the same filtration unit although I had to modify it to come around the side of the printer as I don't have much space above the printer. You can see a couple of pictures of my build in the make section on printables.
After installing the filter I started with some ASA prints. I initially started with the chamber fans set to 40% as was recommended in the release notes of the firmware that added the filter option. Unsurprisingly the chamber was taking longer to heat up. While it probably would have been okay I got impatient and dropped the fan speed to 30%. I did several ASA prints in this configuration. All the prints turned out well with no warping and I could not smell the ASA outside of the chamber.
Last night I did a print with PC-CF, not Prusament and not a PC blend. I got a little impatient again and maybe my space was a little bit colder so I dropped the fan speed down to 20%. I haven't printed with PC before so I don't know how much it smells, but I assume quite a bit less than ASA/ABS. I didn't smell anything outside the chamber and I could still feel a fair amount of air exhausting through the filter. The chamber did reach 50°C by the time the print started and the prints turned out fine. They weren't particularly large prints, one was about 100 mm high and 40x120 mm on the build plate.
You might have issues if your printer is in a colder room. Mine's in an unconditioned garage and right now is varying between 21-25°C, so not very cold. This particular filter doesn't seem to have much air restriction so there might be room to further drop the fan speed.
RE: DIY Filtration Settings
I made the same filtration unit although I had to modify it to come around the side of the printer as I don't have much space above the printer. You can see a couple of pictures of my build in the make section on printables.
After installing the filter I started with some ASA prints. I initially started with the chamber fans set to 40% as was recommended in the release notes of the firmware that added the filter option. Unsurprisingly the chamber was taking longer to heat up. While it probably would have been okay I got impatient and dropped the fan speed to 30%. I did several ASA prints in this configuration. All the prints turned out well with no warping and I could not smell the ASA outside of the chamber.
Last night I did a print with PC-CF, not Prusament and not a PC blend. I got a little impatient again and maybe my space was a little bit colder so I dropped the fan speed down to 20%. I haven't printed with PC before so I don't know how much it smells, but I assume quite a bit less than ASA/ABS. I didn't smell anything outside the chamber and I could still feel a fair amount of air exhausting through the filter. The chamber did reach 50°C by the time the print started and the prints turned out fine. They weren't particularly large prints, one was about 100 mm high and 40x120 mm on the build plate.
You might have issues if your printer is in a colder room. Mine's in an unconditioned garage and right now is varying between 21-25°C, so not very cold. This particular filter doesn't seem to have much air restriction so there might be room to further drop the fan speed.
RE: DIY Filtration Settings
Thats exactly what I was hoping to hear. My printing location is in an area with a similar temperature range and my prints with those type of filaments would not be much larger than what you printed. Thanks for the reply.
On a side note, what plate did you use for the PC-CF?
RE: DIY Filtration Settings
I used the Satin plate. I've been using a smooth plate (both Prusa and 3rd party) for the last couple of years and finally decided to get the Satin based on how everybody raves about it. So far it is living up to the hype. I've had good adhesion with PLA, ASA, and PC with no glue stick or brims.