F.B.D.I.S.S.M - Flux.Boosted.Dual.Induction.Split.Spiral.Motor.

[Thaelin]

Hi Honk:
   This "is" extremely good news. As for your reports, they should be done in the style and language that you are used to writing in. If you try and soften that, you may lose something in the translation. Those that have trouble with the terminology can very easy go to the  tech books to find the answers.
   I had planned to ask if you knew how to calculate what the force of the coil would need to be for said magnet to pass but now I have the answer. Many thanks for your hard work and yes, there are many following you just may be lurking in the background is all. Be well and prosper.

thaelin

[casman1969]

Honk,

I follow your posts with great interest and appreciate the way you share your findings. I was just wondering if you have considered hollow steel cores. The attraction is not as great as solid steel but the results may be even better. I plod along with my pulse motor variations and I'm just waiting for my next spool of wire to try various hollow cores. Been told they work great for pickup but then until I try myself I can't confirm but try I will.
Again, thanks for your open display and sharing of info.

Carl

[Honk]

No, I haven't thought of hollow cores.
Wouldn't the attraction force be lesser due to the lesser permeability of the core?!
Anyway, thank you for the tip. If I need to change the present design I'll have it in mind.

[casman1969]

Honk,
Noticed you are using a rather standard style electromagnet and it occurs to me that the attraction force needed to overcome the dreaded sticky spot can be done with the apprpriate pulse to your EM using a low permeability core and possibly even an air core. Have not tried attraction on such cores yet but it's a thought. Takes me a couple of days to wind my Adams style coil and I'm close to getting my first hollow core unit complete. Will test in the attractyion mode for you and let you know the results as it appears you are using the same 2 X 1 X 1/2 NEOS.

Plodding along,

Carl

[Honk]

I have tested an air core solenoid with very bad result.
The affect on the sticky spot was almost zero.