Filtration Kit.....
Does anyone have the filtration kit at all yet?
I'm interested to know how much extra noise the additional fan adds.....and whether its needed?
Considering just buying standard filters and making my own non-fan version.....?
RE: Filtration Kit.....
No idea whether shipping has started or not. But I ordered the filter system weeks ago and every day the estimated shipping date just changes by another day. It now says June.
Has anyone received a shipping confirmation yet?
RE: Filtration Kit.....
Not yet. I have a batch 1 printer order made on the release day. It has been held up by the filtration system, and has still not shipped
Based on mine being a day 1 order I have to think in should be first on the list to ship, and it has not. I'm not sure if that means anything, not I'm hoping it will ship in the next week or so.
RE: Filtration Kit.....
I'm torn between the official filter unit, or a nevermore, or some of the existing mods like https://www.printables.com/model/1244870-prusa-coreone-bagpack-ikea-airfilter-aka-one-fornu
Ideally I'd also like the ability to vent all or some of the chamber outdoors depending on what I'm printing, so I haven't found anything that quite fits the bill. Tenting it would be another option, but I'm leery of the size not to mention enclosing the printer inside something potentially meltable / flammable.
RE: Filtration Kit.....
Does anyone have the filtration kit at all yet?
I'm interested to know how much extra noise the additional fan adds.....and whether its needed?Considering just buying standard filters and making my own non-fan version.....?
I have zero experience designing or 3d modeling so I've been looking to see if anyone has come up with a DIY solution for the filtration. I've never had a printer capable of materials that have required filtration either. So this is a whole new realm for me. I like the idea of being able to mod the core one and I have a collection on printables going for when I receive my kit. Hopefully I can add filtration to that list! Looking forward to following along this thread!
RE: Filtration Kit.....
So what are the downsides to printing a box that covers the rear exhaust fans on the Core One and placing your own filter inside?
No fan, like the Prusa solution, but is another fan needed?
RE: Filtration Kit.....
So what are the downsides to printing a box that covers the rear exhaust fans on the Core One and placing your own filter inside?
No fan, like the Prusa solution, but is another fan needed?
That is a good question
RE: Filtration Kit.....
I think the fans are not powerful enough to push air thru a HEPA filter. That's why there is a separate blower fan included with the Filtration kit, very similar to the setup on the original Prusa enclosure. The main difference is that it appears the air is exhausted on the Core One vs. recirculating on the enclosure. I plan to design something to make it recirculate.
RE: Filtration Kit.....
I printed this DIY filter with some modifications:
https://www.printables.com/model/1211648-filtered-vent-for-core-one
Even at 20% the chamber fans have enough power to push sufficient air through the HEPA/Carbon filter to keep ASA fumes from coming out of the enclosure. Of course if you have a higher restriction filter, your mileage may very.
I think the fans are not powerful enough to push air thru a HEPA filter. That's why there is a separate blower fan included with the Filtration kit, very similar to the setup on the original Prusa enclosure. The main difference is that it appears the air is exhausted on the Core One vs. recirculating on the enclosure. I plan to design something to make it recirculate.
RE: Filtration Kit.....
Ive seen a few examples on Printables now - none of which require an additional fan, and simply bolt the filter to the back of the Core One. Some are rather huge however! Do they need to be a certain size to work effectively? Wonder if a filter the size of the exhaust area would be adequate.......
RE: Filtration Kit.....
I look at it this way, Prusa has certified documentation on the effectiveness of the filter. I'm willing to bet that none of the Printables examples do.
Prusa 's filtration system is made by Alveo 3D and they specialize in filtration. I can't imagine they are adding an additional blower if it was not needed.
RE: Filtration Kit.....
Well I choose one of the huge ones for a couple of reasons. The larger surface area of the filter will introduce less restriction to the air flow. The velocity of the air will be lower for a given volumetric flow rate making the filter more effective. The particular filter it uses seemed legitimate as compared to some of the other options I saw and I could source it cheaply on Amazon. The filter has built in gaskets that get compressed when installed minimizing any air flow around the filter.
All I can say is that it is effective. Maybe I would be more concerned with certification if it was in a living space but if it was in a living space I'm not sure I would trust any filter at that point.
The chamber fans are certainly not designed to work well against a high static pressure differential so a bigger filter helps. It looks like the Prusa filtration option uses a centrifugal fan which is better against a pressure differential and maybe that's what is required for the smaller filter they use.
RE: Filtration Kit.....
I have the kit, filter + fan, for the MK4 enclosure from Blurolls and a printed case from Printables.
So it works like the original one from Prusa.
The fan is very powerful. I think the original ones would be too weak. They should only run when absolutely necessary.
I usually just leave the door open with PLA or PETG. It doesn't really bother me and the fans are already loud when the environment is warm.
RE: Filtration Kit.....
This is the Blurolls kit I use together with this case.
RE: Filtration Kit.....
This is the Blurolls kit I use together with this case.
Thanks for sharing this. The prices are great. I'll have to look at this when I buy my next set of replacement filters.
RE: Filtration Kit.....
Reading this thread I altered my batch 2 mk4s conversion kit to remove the advanced filtration this morning. @Rainer - Does that kit plug directly into the Core one and work the same as the OEM filtration would? IE, would I need to have a custom firmware or something like that?
RE:
Does this kit plug directly into the Core and work the same as the OEM filtration?
You can connect the Blurolls kit in exactly the same way as the original. You don't have to change the firmware either.
Select the original option in the settings. There is still a small bug that it reports that the chamber fans are blocked. But with the original it is most likely exactly the same as it is the same fan on the same connection.
Everything still works. As the original ones have not yet been delivered, it may take a while until the fix is available.
Is there a quieter Noctua fan that would be compatible?
Quieter almost always means much less power, sadly.
RE: Filtration Kit.....
To come back to the question, has anyone received the filter kit yet? I ordered it on February 1st and so far the order has not been shipped. The order included the Core One, the filter and the camera. Batch 4 has been confirmed, so perhaps the filters have not yet arrived at Prusa.
RE: Filtration Kit.....
I'm still waiting... Batch 2 kit ordered Jan 31 with filter and camera plus a few other accessories.