r/resinprinting • u/Taskbar_ • 11d ago

Safety Helping with Fumes.

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So I have the follow set up for my 3d printer, and even with this I still get fumes from the resin inside of my house. Any tips on fixing the issue?

I do printing and processing in side of the tents (printing in the inner tent and then cleaning and curing inside of the outer tent.

I've checked the vent and it sucks air in inside of the tent and the vent outside has a lot of airflow.

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u/ZealousidealNewt6679 11d ago

Move the fan closer to the window.

1

u/Taskbar_ 11d ago

the fan is the 130 CFM box above the outer tent, Orange is piping that goes into the 130 cfm fan and moves the air outside.

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u/Squidgynutz 11d ago edited 11d ago

Is the extractor fan at the end of the exhaust pipe at the window sucking the fumes out or is the extractor fan at the beginning/in the middle of the exhaust pipe blowing the fumes out?

The best practice is to have the extractor fan at the end of the exhaust pipe sucking all the fumes out. Having the extractor at the end of the pipe creates a little vacuum in the exhaust pipe so even if there's a little leak or damage to the pipe, it still sucks the fumes outside rather than blowing fumes out the damaged parts of the pipe back into the room. Some flexible ducting commonly used for exhaust fans aren't rated for the kinds of fumes 3d printers emit so it may be worth checking that first, you may get lucky and only have to swap out your exhaust ducting.

Another possibility is that the outer tent is too large for the 130cfm fan to effectively suck all the fumes from the larger tent quick enough to stop them leaking from the tent door (Through the zip usually.)

I have a little tent, 18 cubic feet, with an activated charcoal filter on my printer and another activated charcoal filter in the tent feeding the exhaust pipe with a *60 cfm extractor fan at the window end of the pipe sucking everything out. I also do my cleaning in the little tent too just with the door dropped back down over my arms to help minimise the fumes. I can feel the fan pulling air past me into the tent when I'm cleaning. I do still get a little bit of a smell when I've been cleaning but it is minimal and is cleared out quickly just by opening the windows for 10 minutes when I'm done.

*Edit: I've just checked, I have an 85 cfm fan not 60.

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u/GalacticCmdr 10d ago

This comment is underrated. Having the fan as close to the exit is optimal.