I want to start using the printers extraction fan (charcoal,hepa) to improve the rooms air quality but the door has a gap around it about 3/32" wide which might lower the fans efficiency. Has anyone an idea about how to seal this so the door can still be opened.
So couple of questions.
Are you using a filter system in the enclosure?
or extraction from the enclosure to outside?
Extraction needs air moving to the inside so no need to seal it.
I am guessing a filter system like a Bento box. I use magnetic sheets and just stick it to the enclosure . If the enclosure is plastic a glued on flap on the door. Nothing will be air tight completely, it isn’t needed.
It is a carbon /hepa filter on the outside back of the printer (fan on the inside).
I understand that there has to be airflow but how much is to much and does it affect how well the filters work. This just for PLA so I guess perfection is not necessary.
You’ve gone overkill already IMHO. If your fan/charcoal/hepa filter is extracting, you still need some air intake, which is provided by the gap around the door. With positive airflow in and out, odor is not escaping via the door.
Carbon might be not really needed for PLA but then again that could be color dependant. HEPA is absolutely a good idea for all FFF. Microplastics are simply not good and more and more hazards are exposed.
If you are removing air from the enclosure fresh air needs to replace it. If you are circulating air that is not needed. It might just be a trail and error moment.
The fan sucks air out of the printer enclosure.
you will need to have air entering at the same rate if you seal it completely it will stall the fan. I would think on where the fan is placed and where air should enter. I have a fan pulling out the back and top corner. The inlet is the lower front. No cool air hits prints directly and the cool air is entering under the bed so it get a change to warm up some and the extraction removes the hot air at the top of the enclosure.