Leon. On your next inevitable rust battle:
http://www.ospho.com/directions.htmIt treats and preps rusted metal beautifully for primer with minimal effort.
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Today I assembled an adjustable fan from various parts.
I bought the Vector adjustable voltage ciggy plug 6+ years ago for my MP3 player, but it has been unused for a few years now. Here is a similar product as I cannot find the exact one online:
http://www.pinecomputer.com/restcarvoco.htmlThere is a little keyway to adjust the voltage dial. I superglued in a piece of flat plastic so no tool is needed to adjust speed/ voltage. It is capable of outputting 1.5, 3, 4.5, 6, 7.5, 9 and 12 volts.
I bought this Fan a while back.
http://www.amazon.com/Vantec-Tornado-TD8038H-80x80x38mm-Performance/dp/B000234VZK I was going to make a cold air tube for my alternator, and stick this fan inline to force feed it air, but decided that I did not have THAT much spare time for something that is not really needed.
When fed 12 volts, this 80mm fan is LOUD and pushes a dense, narrow column of air across the Van. It claims 84 CFM. Lots of these muffin fans push air out at much wider angles with hotspots of higher velocity. This fan is like a spotlight
The Adjustable voltage ciggy plug works as a speed control. Note it will not start the fan spinning on the 1.5v, 3v, or 4.5v settings. It will run nearly silently on 3 volts but after starting the spinning by a higher voltage, or by blowing on the back of the fan.
Right now it is on 3 volts, aimed at my chest from 4 feet away, and I feel a light breeze, only on my chest. Cannot even hear it.
At 3 volts, it draws less than 0.1 amps. At 12 volts, 0.9 amps, and the draw is not linear.
The adjustable arm is from a 120 volt incandescent spotlight I no longer needed hanging around in my storage unit. The width of the attachment points matched perfectly to the width of the fan. I pre drilled some small holes, and took some tiny machine screws that I salvaged from my former Sony stereo to hold the adjustable arm to the fan.
The 2 inch spring clamp cost 1$ at home depot
A couple of crimp on connectors and some heat shrink, and I've got a powerful, tiny fan I can clamp anywhere in my Van, plug into any of my several ciggy plug receptacles, and adjust the aim, the speed, and noise to an acceptable level.