79 replies to this topic

[Rick]

You're preaching to the choir, we have been in agreement on personal ceramic zappers and FK neos for a long time.

Damn, my little zapper is doing good! I will have to try your test tonight.

Your theory of magnet energy would certainly explain why you sometimes find that great set-up that any arm runs well in and a good arm runs great, I have had two of those in my time. But trying to duplicate them has been fruitless.

bbiab..............

[Ron Hershman]

I have had two of those in my time. But trying to duplicate them has been fruitless.

bbiab..............

And probably quite costly.... first the equipment then how many magnets might one have to go through to find two of exact energy????

[Rick]

Yes, quite costly.

Here is my results using my personal Magblaster 3. I used an old 16D set-up I always use for testing polarity when building and testing a zapper. Yes Louise, I finally own my own Magblaster. I made one with a meter on it so I could not sell it and finally keep one for myself. And now I am racing PD motors and have no need for it.


Test #1: Set-up has been laying in the drawer for a few months.

+ 1285 -1291

Test #2: Reversing polarity with no slug

+ 662 -563

Test #3: Reverse adding the slug

+1293 -1308

Test #4: Reverse back to original normal polarity

+1312 -1320

Test #4: Reverse again with no slug

+576 -704

Test #5: Zap again with slug installed

+1308 -1348

Now the FK test. I opened up a used F7 last night and cut it down shorter and installed a PD arm just for chits and giggles to hear it. It was a WOWZA. Since I had a newly used F7 set-up there, I zapped it with no slug installed.

Inital gauss readings:

+1449 -1467

First Zap, proper or correct polarity- NO slug

+1424 -1445 dropped 20 counts with no slug installed

Second zap, slug installed, still correct polarity or orientation

+1452 -1498 It came up some from the inital reading

Read what you want into the above tests. I make no claims or assumptions, other than my zapper will get the job done for ceramic slot car motors.

I won't zap it to revsere it because I had another there that I have tried this with before. It dropped the magnet readins way down when trying to revserse the neos, did not even kill them but close, about a 300 reading both + and (-).

I just popped that set-up in the zapper with no slug and it did nothing to raise the readings. I then installed the slug and zapped it 3 more times, it came back to about 975. I don't know if I kee zapping it, if it will get to original readings, but I doubt it.

Now some other info for you to try with your zappers. I have found or it seems to be that if you take a pair of magnets and keep revsering them back and forth, they will equalize better. This is not something I have done a lot of testing with but something it appears may work, to a degree. I guess someone now can try this theory out and see if it helps match up a set of magnets better, or not. BTW, check them in the can, not on the bench. Since they are used in a particular can, I feel they should be checked in THAT can. The can and the magnet situated in it, can change the gauss reading quite a bit. Now if we could actually check the energy or power of the magnet and not use gauss readings as our benchmark, then I may agree with out of the can magnet matching? But with the equipment I own and have access to, I prefer in the set-up matching.

[Neuspeed]

Awesome job Rick!

[DOCinCanton]

Well, I ran my simple test which should be a no brainer whether zapping the magnets helps or not. And I came away with two conclusions.
1) Zapping a new Falcon 7 or Hawk 7 does nothing for the motor, does not help it, does not hurt it like some have said.
2) Zapping several Falcon 7s which all had 1 to 3 races on them, made a measurable improvement.

So I am guessing that every time that the motor gets real hot, it losses a little magnetism, which subsequently can be brought back to new with a good zapper.

What I did was to turn the armatures with a cordless drill. If you turn an electrical motor with an external drive of some kind, the motor generates voltage. For the same type of motor (read this as the same armature), the motor with the stronger magnetic field will generate higher voltage. However, you can not compare a Hawk 7 to a Falcon 7 because the fewer number of windings on the Hawk 7 will generate less voltage (fewer windings turning inside the magnetic field). And we all know that the Hawk 7 is faster than the Falcon 7.