Welcome to my DIY ultrasonic fogger thread. first i'm showing you just a cheap illustration of the fogger unit I will be building. Easily transports from room to room, can be used as a foliar feed system or can easily adapt to hydroponic systems. A picture is worth a thousand words. so take a look before i explain how it works.no humidifier required, runs on very little power and costs about $50-80 to make depending on how resourceful you are. compared to $350 and up in stores. If this exact fogger has been done before somebody please stop me.
Ya man this is it. I havn't ordered any parts yet though. I'm still looking for a good deal on a 12v fan with adjustable volt power supply pack because the one on the futuregarden website costs too much. Loudblunts. do you know how to make variable speed computer fan by regulating its voltage? i.e.(3v-12v) what kind of adapter would be needed to make the connections?
Ya man this is it. I havn't ordered any parts yet though. I'm still looking for a good deal on a 12v fan with adjustable volt power supply pack because the one on the futuregarden website costs too much. Loudblunts. do you know how to make variable speed computer fan by regulating its voltage? i.e.(3v-12v) what kind of adapter would be needed to make the connections?
What you're looking for is a potentiometer. I used one to regulate speed of spin on an agar mixer I constructed out of magnets, pc fan and a wall adapter. The potentiometer is a variable resister which acts to reduce power to said electronic device... thus reducing mechanical spin in this instance.
Buy a potentiometer from Radio Shack or similar electronics suppliers. Simply wire it in between the fan wall adapter and the device. I over powered the fan initially to adjust for the latent resistance of the potentiometer. It is a resister after all. What I mean by this is... lets say the fan needs 12volts at one amp and your potentiometer acts to reduce power up to one amp. You will not ever see that one amp at the fan due to resistance in the potentiometer... even when it's full open. I used a 12 volt 1 amp fan, a two amp potentiometer and a 12 volt, 2 amp wall adapter. Power reduction was in a twist of the knob on the potentiometer. HOPE THIS HELPS!
Last edited by stinkbuttdog; 11-03-2008 at 04:00 AM.
Reason: finer technical details
Ya man this is it. I havn't ordered any parts yet though. I'm still looking for a good deal on a 12v fan with adjustable volt power supply pack because the one on the futuregarden website costs too much. Loudblunts. do you know how to make variable speed computer fan by regulating its voltage? i.e.(3v-12v) what kind of adapter would be needed to make the connections?
You can just use a PC fan controller,they're cheap enough and i'd just use a computer PSU to controll all the 12v stuff anyhoo's.If you need some links ill get them but just start at Newegg or some place like that.
The potentiometer cost is approx. .13 per unit... you won't find anything cheaper for what you need and they are fairly available... more so than something you'll order over the net.
The potentiometer cost is approx. .13 per unit... you won't find anything cheaper for what you need and they are fairly available... more so than something you'll order over the net.
just watch the wattage. RS pots are probably 1/4W.
LinkBack URL
About LinkBacks
Reply With Quote
DIY portable ultrasonic fogger
Originally Posted by txhomegrown
WATCH OUT!!! Its a cyber driveby.
Posting Permissions
Bookmarks