I love seeing what's in Julian's Shorts :) Damn...that fan is loud...and at 6 amps seem rather inefficient...maybe a 12VDC computer case fan or two would be a bit better to run off the battery like this.
Yup, nothing like pulling out PWM controlled fans from servers and top of the line workstations. Quiet and powerful, will last forever. One would think this thing runs for hours every day so you don't really need a jet engine turbine. Not to mention that repurposing is the way to go for ecology and economy. So many people just buy everything from a shop when they need it and then throw it away at 20% of it's life cycle.
Found your vid looking at marine blowers for a solar power pond air pump. Don't need much pressure as its only dropping 4-5 feet. Sold me with that speed controller reducing the noise.
I too have a shed, that gets very warm in the "summer" - been looking for something like this to take the heat out, hooked up to a temperature based controller Thanks
Would someone be able to recommend what motor I could swap into this? Preferences: 12v (in vehicle use), Quiet as possible, Adjustable speed, Long lasting, Moisture resistant. Must be a brushless motor that would straight swap?
Hi Juilan! Thanks for sharing this. I'm trying the same thing - making a tiny house in a box truck and I would like an extractor fan that isn't super loud and can be modulated. I successfully wired it all but the fan buzzes loudly when it's 'dimmed' all the way - any idea why mine does (same fan) and yours doesn't? Might it have something to do with the type or quality of the PWM?
What's the little speed control called? I want to install one of these in an ice cooler and somehow pass the air through a radiator with a water pump to quickly cool it down and make a DIY portable A/C
Well that's better than the cheapo B&Q inline bathroom extractor fan I put in my shed. Might need to upgrade mine and turn the current one into a solder fumes sucker.
Well, that fan should shift some air!.... ‘tis a bit more than the gentle draft that should be all that is needed (assuming that there are no leaks in the roof). I have two sheds, one completely wooden and one where the back wall is limestone, the two end walls are half limestone, half brick and the front is wooden with a glass window. Don’t get damp or mould in either of them. But both are well ventilated.
@Julian I couldn't hear the PWM from the 555 controller modulating the motor. Any idea of the PWM freq of the controller? (I'm deleting the resistor pack in my Clio Turbo with an AT microcontroller and the PWM is audible).
Just splice this in, Xprite 12V 10 ft 3 Wires Cigarette/Cigar Lighter Socket Plug Connector & Extension Wire with On Off Toggle Switch & Changing Pattern Switch www.amazon.com/dp/B01B58QUZE/ref=cm_sw_r_apan_i_1MYCQ2E3E15A01Q441DW?_encoding=UTF8&psc=1
That motor is just horrible. It sounds like a low cost brushed motor, and the impeller is out of balance too. That'll definitely upset your neighbours. A couple of large 120mm PC cooling fans would move sufficient air, with a lot less power consumption, and a lot less noise too.
I bought it because I'm not very good at fitting mechanical things together. However, the fan ports are 4" (105mm) and the semi-rigid hose I just bought is 100mm. Houston...
@@JuliansShorts Indeed... And so much cleaner than "Julian's shorts relocate themselves due to blow ***" Seriously though, that fan is a bit over the top, isn't it? How many CFM is it rated for?
No problem, if the blowing is not happening towards the desired direction just swap position of the leads 2-5 times to reach the wanted result as usual :-)
And I'd thought GB had mostly gotten out of the Retardenheit era. Pints, fair enough, but come on, feet and inches? Is this a post-Brexit item? Is GB lapsing back to Industrialisation times?
