Quantum Energy Generator (QEG) Open Sourced (by HopeGirl)

[Angelic]

Hi Tk,
I get your point. But I would not do a thread or tap into the laminates, as this would cause them to separate.

[TinselKoala]

Hi Tk,
I get your point. But I would not do a thread or tap into the laminates, as this would cause them to separate.

I had forgotten that the rotor was made of laminated sheets. You may be right, although I've done it successfully. It's probably a matter of thread pitch vs. lamination thickness.

[Angelic]

Yes, It can be done but not without some distortion. The tighter you go the more upward force is exhibited to the upper laminates.  The male thread will push as well as pull into the laminate if tightly threaded. And a sloppy thread until the head was seated would still exert force upwards when tightened. A perfect fit is impossible. Sorry for the modifications to this post. More experience in machining than electronics. 

[TinselKoala]

Well, I'm not really arguing with you.... but.....

The first image below shows the size of the original hole (on the left) and shows the 1/4-20 plug tap going into the RH hole that has been drilled out to #8 (my #7 drill is missing in action somewhere).
The second image shows the lamination thickness compared to the thread pitch.
The third image shows the slight burr on the top lamination, which is easily removed with, e.g., a light touch with a countersink or spotface or even a few strokes with a file. Lower lams don't show any distortion.
I was able to tighten and remove a 1/4-20 bolt into that hole without further distortion. I would not hesitate doing the same thing on a QEG rotor (except I might use a different thread diameter/pitch) especially since the bolts will be loaded only in shear and barely at all even there.

(I have a little bit of experience with machine tools, field repairs and just generally trying stuff out to see if it will work or not)

[Yadaraf]

Well, I'm not really arguing with you.... but.....

The first image below shows the size of the original hole (on the left) and shows the 1/4-20 plug tap going into the RH hole that has been drilled out to #8 (my #7 drill is missing in action somewhere).
The second image shows the lamination thickness compared to the thread pitch.
The third image shows the slight burr on the top lamination, which is easily removed with, e.g., a light touch with a countersink or spotface or even a few strokes with a file. Lower lams don't show any distortion.
I was able to tighten and remove a 1/4-20 bolt into that hole without further distortion. I would not hesitate doing the same thing on a QEG rotor (except I might use a different thread diameter/pitch) especially since the bolts will be loaded only in shear and barely at all even there.

(I have a little bit of experience with machine tools, field repairs and just generally trying stuff out to see if it will work or not)

Haven't you just "shorted" the laminations and created a lump of iron, thus defeating the purpose of the laminations, which is to reduce eddy currents and associated heat?


Cheers,
Yada