Higher volume exhaust fan needed it seems

OK gang,

I’m getting to finally run BEAMER some more. and it is getting a bit smokey because I’m cutting more than I ever have in one shot.

I have a 390 CFM vivosun fan at the moment. I am thinking I’m going to die in here when I got to cut the significant amount of leather in my future.

any suggestions?

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make sure everything on the exhaust path is clear/clean and no leaks. 390 should be plenty.

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I did retape some joints. after the fact so it will be a bit before the results are in.

I hadn’t thought about the fact that putting the unit into the window, and taking it out might have loosened things up. the last things I have done were shot glasses. No smoke :slight_smile:

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if you have some sort of louver vent on the outside of where your hose goes, double check that there wasn’t a screen inside to keep bugs/small animals out. mine had that and the screen will clog up w/laser detritus.

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i will check that too.

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As always, make sure the fan is closest to the window/exhaust vent. Negative pressure in the indoor exhaust run is vastly better than positive.

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it is AT the window with an 18" duct to the exterior.

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That should be more than adequate, I would be looking for something getting jammed along the way. In the meantime also run the exhaust fan on the machine when things are going to be smokey.

I have not used any oak recently but (particularly when engraving) heavy water-carrying fibers do not burn as easily as the rest and become larger fibers in the smoke and piling up a lot like mouse nests along the way.

If you left the Vivosun running 24/7 it might slowly improve the path.

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when I get back i will give that a shot. I was making a carrier for a bottle of Angel’s Envy Bourbon. with a living hinge. lotsa cuts.

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