I would not have bet an aquarium aerator was so trivial... The transformer is only a big U-shaped electromagnet which moves two levers to and fro (we are talking AC current of course). Each lever acts on a respective diaphragm to feed air to the tube. I guess most of the price I paid went into patents (!) and into making it quiet (lots of rubber pads and suspension). Well, I did not try it yet (110V vs 240) ...
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- Hehe, you just couldn't resist opening it? :DMar 7, 2016
- I void warranties :)
BTW a 1N5406 diode did it fine (220->110). This pump is very silent even though the electric current is no more smooth :/
It pushes air hard enough that a 1m super soft latex tube seems to have no impact!
But it does not move much air
Will try it asap :pMar 7, 2016
- This super elegant simplicity is fantastic. All my attempts at 3d printed pumps seemed so futile after seing the innards of an air pump for the first time !
Btw you can get some much more powerfull ones with dual outputs for not too much money (20 € or so ) they are even quieter and have settablle output strengh !Mar 7, 2016
- I was curious also and I wanted to add a diode anyway, so it was time I open it :) Yep, I went with a brandname -- costly IIRC. I am probably losing some of the throughput given that it runs 50Hz instead of 60Hz, but it does work well to cool the part, and it is really quiet (just tried a print with it)! Overall noise is unchanged with or without the pump: just a calm buzz (my printer is noisy).
One way journey, I already had no print fan on the head and a large, quiet, powerful 120mm on the chassis instead. Plenty of air but for very small layers, so this pump+hose will come handy at no mechanical cost.
But you sold me: a dual output would be awesome (more even cooling). So I am back on the web to find a cheap dual pump, and so long for the "limited lifetime warranty" that I broke anyway :)Mar 7, 2016
- I'd love to try something like that out, if you find a good one online, lemme know :)
Also, do some overhang tests with and without!Mar 7, 2016
- Yep. They've been making them like this for over 30 years! I took one apart when I was a kid. 8-)Mar 9, 2016
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