Quote from: PCB on June 06, 2014, 07:13:55 AM
I'm astonished at the extremely low volume of postings on http://be-do.com/  Barely one a day, and they are mostly "Hello" postings. Is this their main forum or are the builders using a different one? How come with all the all these replication efforts there isn't more activity? Perhaps folks are too embarrassed to share.

Very good question.  I keep reading the number of groups, not individuals but groups, raising from 100, 200, to 300.  Each time someone post the number of that day, I ask them why have the efforts of these groups not been known on any of the forums other than the German forums.  And what happened to the 5,000 engineers in China, and the reports of the Morocco 30 in Aouchtam.  Same on "wait see" virus kicks in and they say the same symptom of be patient and sit back don't judge.

Only qeg videos being released of substance was that last report Version 1.0, not included the now ever growing Click To Donate videos hope is putting out for money.

QuoteI don't buy that at all.  0.010" is a little bit less than the thickness of three sheets of paper.  I saw the rotor moving a bit in his clip and I think it was lined up with the posts at the time.  By observing the rotor movement, I guesstimate that the separation between the rotor and the posts is about 0.040" minimum.

0.040" or greater sounds more reasonable.  I just don't think you could actually build the QEG to such a tight tolerance with such a small air gap.

Quote

I have noticed your concern about this before. I to agree that this tight of a tolerance would be very difficult to work with, especially using those fiberglass plates. I think I remember on the original plans the clearance was 0.013. But still I would be leery of this at high RPMs. A way to know would be to contact Torelco with your concerns.   

Yes, that's another thing I noticed too. With the materials and the assembly techniques they are using I doubt very seriously that a gap of 0.010 " could actually be used. You would almost need dowel pins in metal to achieve the necessary alignment repeatability and stability for the rotor shaft bearing blocks, and a well balanced rotor and shaft and pulley assembly to boot.

Having a control surface point is needed. It could be a machined shoulder, slot or even a tightly controlled pin arrangement. But it would need to be a carefully plotted around the core and rotor measurements. Joining two flat surfaces at 90 degrees with a bolt and nuts through a hole does not make it likely. After rethinking about what I have seen. No way!

ariovaldo
Please provide your tolerances as I believe that you are a trusted source.