I built mine using an old giant screen projector TV housing, (dumpster find). . It operates under (Bernoulli's principle)..... The fan is never exposed to fumes. Takes a bit to get set right, but man it will move some air.
So the screws on the frame for the light don't rot from the fumes I'd caulk it all in to protect it, same with any metal that can be caulked. Very nice updated fume hood!! Have a Great Day My Friend!!!
You might want to consider moving the motor off of the fumehood and mounting it a little closer to the end of your exhaust hose. It will still move the fumes out of the hood, and it would be a lot quieter for making your RUclips videos. As long as it's not attached to the fume hood the vibrations won't create so much noise.
Brother, could you Show Us whats coming-out the Hose (in a Next-Video), it seems not-far-away, also you seem have Neighbours, so it should be Little, or they would Complain ...
Things have changed a lot in the couple of years since that video came out. Fume hood is in a different location. Hose is longer and actually I don't have neighbors. I probably need to do a whole new fume hood video. Maybe even make a new one. This one has always been a bit small.
I have a big box full of salvaged computor fans they are brushless therefore don't spark so should not create a explosion hazard. What would be the thought on these making a viable source for a blower set up for fume hood? They are mostly plastic except for the seal motor. I have been collecting and saving electronic components for a long time and built up a fair stockpile. It's about time I built me a station for chemistry and refining.
@@omegageek64 thanks for the quick reply this was something I have wondered about for some time now. But I have a lot of these and using what you have instead of spending lots of money most times makes good sense. But although I have a fair knowledge with chemistry stuff I have had as of yet very little practical experience. But at 62 and retired with nothing but time to do what ever seems a good time to make use of my knowledge and interest and gain the practical experience. I hope to hone my skills and be able to do custom precious metal refining for individuals. There is nothing like that anywhere remotely close to my area. Yet I know a lot of people local who do gold prospecting and scraping as I do.
Isnt a fume hood for use outside a bit redundant? I understand and definitely appreciate the providing of information so that it could be transferred to a build indoors but other than that I am not sure i get why... It does make the videos look more professional though 👍
Working outside is no guarantee of not getting a face full of something nasty. The wind can change in a heartbeat and suddenly you are in a cloud of acid fumes. I was tired of constantly having to dance around and try to stay upwind of what I was working on. On a calm day a vapor cloud can spread out in all directions and drive me away from what I am working on. Plus I had ruined several pairs of glasses due to the coatings going bad from the fumes. I was worried about my lungs and eyes. so I built the fume hood. Now there is no issue.
to right.your 100% correct.even outside a fume hood is needed.especially your your adding acids etc.wind can change a blow it up in your face.top job as always my friend
Hi. I tried that at first. The problem is that most of the gases and fumes produced by my gold refining are heavier than air. On a calm day the stuff would come out of the stack and drop right back down on my work area. I quickly learned to discharge it at ground level downwind of me.
That’s a great design! Gotta make me one of those soon 😉
I built mine using an old giant screen projector TV housing, (dumpster find). . It operates under (Bernoulli's principle)..... The fan is never exposed to fumes. Takes a bit to get set right, but man it will move some air.
I built a similar one, all the fixings were solved with a titanium screw, it resists everything. Fan is also a consumable product :D
So the screws on the frame for the light don't rot from the fumes I'd caulk it all in to protect it, same with any metal that can be caulked.
Very nice updated fume hood!!
Have a Great Day My Friend!!!
You should consider building a fume scrubber, you can recover some nitric and it’s better for the environment
You might want to consider moving the motor off of the fumehood and mounting it a little closer to the end of your exhaust hose. It will still move the fumes out of the hood, and it would be a lot quieter for making your RUclips videos. As long as it's not attached to the fume hood the vibrations won't create so much noise.
Brother, could you Show Us whats coming-out the Hose (in a Next-Video), it seems not-far-away, also you seem have Neighbours, so it should be Little, or they would Complain ...
Things have changed a lot in the couple of years since that video came out. Fume hood is in a different location. Hose is longer and actually I don't have neighbors. I probably need to do a whole new fume hood video. Maybe even make a new one. This one has always been a bit small.
I have a big box full of salvaged computor fans they are brushless therefore don't spark so should not create a explosion hazard. What would be the thought on these making a viable source for a blower set up for fume hood? They are mostly plastic except for the seal motor. I have been collecting and saving electronic components for a long time and built up a fair stockpile. It's about time I built me a station for chemistry and refining.
I don't know if the computer fans would hold up to the chemicals or not, but you can try. They are free for you, so why not?
@@omegageek64 thanks for the quick reply this was something I have wondered about for some time now. But I have a lot of these and using what you have instead of spending lots of money most times makes good sense. But although I have a fair knowledge with chemistry stuff I have had as of yet very little practical experience. But at 62 and retired with nothing but time to do what ever seems a good time to make use of my knowledge and interest and gain the practical experience. I hope to hone my skills and be able to do custom precious metal refining for individuals. There is nothing like that anywhere remotely close to my area. Yet I know a lot of people local who do gold prospecting and scraping as I do.
Sir if you don’t mind if I can get the name of that blower that you have please thx
There are probably lots of blowers that would work. Here is a link to the particular blower I am using on Amazon. amzn.to/3k7kaID
@@omegageek64 Thank you for your help
Its easier to pull air than to push it.
Its ok to move your fan further away
Isnt a fume hood for use outside a bit redundant?
I understand and definitely appreciate the providing of information so that it could be transferred to a build indoors but other than that I am not sure i get why...
It does make the videos look more professional though 👍
There’s no overkill when it comes to some of these fumes
Working outside is no guarantee of not getting a face full of something nasty. The wind can change in a heartbeat and suddenly you are in a cloud of acid fumes. I was tired of constantly having to dance around and try to stay upwind of what I was working on. On a calm day a vapor cloud can spread out in all directions and drive me away from what I am working on. Plus I had ruined several pairs of glasses due to the coatings going bad from the fumes. I was worried about my lungs and eyes. so I built the fume hood. Now there is no issue.
to right.your 100% correct.even outside a fume hood is needed.especially your your adding acids etc.wind can change a blow it up in your face.top job as always my friend
Ok fair enough 👍 I have just never seen anyone else tske that approach
Why don’t you run you tubing straight up , well not straight up but at least north
Hi. I tried that at first. The problem is that most of the gases and fumes produced by my gold refining are heavier than air. On a calm day the stuff would come out of the stack and drop right back down on my work area. I quickly learned to discharge it at ground level downwind of me.