Window mounted fan for spraying lacquer

Pretty nifty neat, David. Liked the technique for cutting the bolt heads in too.

difalkner said:

This window mounted fan support is a long overdue shop upgrade project. Every time I spray lacquer I had to rig the fan to stay in the window (it fell once and bent the blades). And it didn't work very well, either. As much air came in the window as the fan blew out. Also, every bug that got near the window got sucked in by the vortex on the periphery of the fan. This is much, much better!

https://www.youtube.com/watch?v=wPh69qe3nl4

Enjoy!
David

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David, that looks like it's going to work pretty good. So what about the AC this summer? You just going to sweat it out. Pun intended. :wink:

The heat and humidity are terrible here and I know it's a whole lot worse where you live.

Thanks, guys! I only run that when I spray, Don, and then turn the mini-split back on and I try to do most of my spraying in the mornings before it gets warm. Today it was in the 50's so pretty nice with the windows open for 30 minutes or so while I sprayed.

David

Good set up, David, and good vidio too.
Herb

An exceptional video David. Your shop must be a lot cleaner and dust free than mine, because when spraying lacquer, which is often, I have to wait 'till all dust has settled then I get a perfect finish, if I had a fan sucking the air out it would spread the fine dust.

I would worry about the explosive fumes and a spark generated by the fan motor..

Another great video, David. I love the bolt head technique.

Stick486 said:

I would worry about the explosive fumes and a spark generated by the fan motor..

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I realize it isn't explosion proof but when I spray it isn't very heavy and with the HVLP gun there's so little overspray and airborne material that it's gone in no time. I've been using this for about 18 months and just finally mounted it properly. Now if I was using a cup gun and filling the room with vapors that would be a different story but I spray small items and it's over with pretty quickly. There's another window and it's open to bring in fresh air.

David

difalkner said:

I realize it isn't explosion proof but when I spray it isn't very heavy and with the HVLP gun there's so little overspray and airborne material that it's gone in no time. I've been using this for about 18 months and just finally mounted it properly. Now if I was using a cup gun and filling the room with vapors that would be a different story but I spray small items and it's over with pretty quickly. There's another window and it's open to bring in fresh air.

David

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David..
what about the guy that sees your better plan and does likewise...
only he has a cup gun, no HVLP and is spraying larger projects...
are there others in the shop and is his family on the other side of the shop's wall... his insurances paid up or any good..
''what if'' is a mighty powerful force to be reckoned w/..

Thanks for your concerns, Stick.

David

I added a disclaimer to the description below the video -
***Disclaimer*** This is not an explosion proof fan. If you're wanting to build a similar stand for your shop you should probably look into an explosion proof fan or other setups to prevent fire and explosions

difalkner said:

Thanks for your concerns, Stick.

David

I added a disclaimer to the description below the video -
***Disclaimer*** This is not an explosion proof fan. If you're wanting to build a similar stand for your shop you should probably look into an explosion proof fan or other setups to prevent fire and explosions

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I hope you don't fell as though I'm busting you chops...
but unfortunately you have to think ahead for not only yourself but so many others..
I couldn't deal w/ knowing my plan injured, maimed or killed someone especially a child collaterally..

David,

I like the fan but I don't think that beautiful Rose bush will appreciate the fumes !
I have seen and was planning to but a square window fan and build a box for it, it seems much easier given I don't own a CNC router. What advantage does this type of round fan have vs the square ?

Dan

I don't mind you busting my chops at all, Stick. You are correct that I should have pointed out there are better ways to do this. But I've had this in operation for 18 months and it's been in countless of my videos and until now just hasn't been the focus. So you can understand how good I felt about having a far better solution than just trying to keep the fan perched on the window sill. I honestly never even considered that someone might be influenced by what I've done and I need to start thinking about that. I'll do better in the future.

David

Danman1957 said:

David,

I like the fan but I don't think that beautiful Rose bush will appreciate the fumes !
I have seen and was planning to but a square window fan and build a box for it, it seems much easier given I don't own a CNC router. What advantage does this type of round fan have vs the square ?

Dan

Click to expand...

Thanks, Dan! The fumes are gone so quickly I don't think the rose bush even notices. I have sprayed inside, put the gun down and taken my respirator off, walked outside and get a couple of feet from the fan and I can barely pick up the odor it's gone so quickly.

I picked this fan for the high CFM and greater air flow. It is something like 3 times the air flow of any square box fan I found (I don't remember the specs now but in my research 18 months ago I was surprised by the air flow this has so I bought it). I had the same thought - this would be much easier with a square fan.

David

difalkner said:

I don't mind you busting my chops at all, Stick. You are correct that I should have pointed out there are better ways to do this. But I've had this in operation for 18 months and it's been in countless of my videos and until now just hasn't been the focus. So you can understand how good I felt about having a far better solution than just trying to keep the fan perched on the window sill. I honestly never even considered that someone might be influenced by what I've done and I need to start thinking about that. I'll do better in the future.

David

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you do some major fine work...
you have better ideas routinely...
there is no accounting what others will do w/ your presentations...
so protect yourself...

Nothing would get done if we protected all the idiots that don't think something through. That's what has happened in our country we are suing each other because the average guy doesn't think things through. 50% of the people out there are below average in intelligence. I really like your idea Dave

Other than large industrial, expensive fans I haven't seen any with brush type motors for MANY years, and if this is so, there are no sparks to worry about!

belt drive a squirrel cage blower w/ a fractional HP TEFC motor based or C faced...

.

harrysin said:

An exceptional video David. Your shop must be a lot cleaner and dust free than mine, because when spraying lacquer, which is often, I have to wait 'till all dust has settled then I get a perfect finish, if I had a fan sucking the air out it would spread the fine dust.

Click to expand...

At the sign shop where I worked, I used to take a spray bottle and dampen the floor before applying vinyl or painting. Helped some.