Tales from a Ventilation Lunatic

[sternwake]

I've pulled the impellers from the BDS 140mm fan and the 140Mm 12v Delta, both 38mm thick.

The BDS is an obvious Delta copy. It slows a certain amount then shuts off. I only employed it for a few short months before replacing it with the 24v mother of all fans the 52mm thick version. I never tried to use the accelleroapp to balance it.

The 12v 140mm 'Delta' fan with scythe like blades, is an impostor Delta. Its bearings and hub are smaller than the 120M Delta fans, and the circuit board components appear, from what i can see, much closer to the BDS 140mm fan than any previous Delta fan whose guts I have exposed. Since such a fan does not show up in deltas PDF of offerings, and even though the hub's sticker looks legit Delta, I have to believe this fan is a fake Delta.

I have used amazing goop to completely block off the circuit boards of both these 140mm fans from the fan's hub. I did something similar to the last purchased silverstone fm121, and it had no issues with lack of airflow over the components incurred, but it is a concern with these more powerful fans that consume much more current

The Nailpolish did not pose any issues in the dielectric department nor dissolving the existing varnish covering circuit boards, so both 140m fans got liberal and multiple coatings of it. They should be quite tolerant of humid salty and dusty conditions now , but time will tell.

I had previously attempted to balance the clone 140mm Delta, before I had really refined the method, so started over and this fan is not taking kindly to my attempts. I walked away before achieving anything close to acceptable, so far.

I don't really need these 140mm fans up and running, and should spend my time doing other things. oh well.

I did attach two Jaro fans to the same bucker speed controller attached them to a 8 feet away ciggy plug, a small wooden base so they could not easily tip over, and made a ciggy receptacle on a 12 foot extension 16 awg cord, and gave it to the person Intended to give it to who was stoked on the gift, especially considering the temperatures as of late.

Before I gave the JARO fans away, I was using them on worktable to blow dust towards other fans exhausting the far end of the workshop, and it worked quite well keeping dust from my nostrils without having to wear a dust mask. The 140Mm fans being more powerful, and with the steering vanes concentrating the flow into a column should be more effective in this same use.