Replication of the Jan P. Cack device?

[mikestocks2006]

Dear All,

Has anyone ever attempted a replication of Jan Cack?s KISS PMM?

These two links may offer some help for those not familiar with it:

http://www.fdp.nu/cack_movie/janpcack.asp

http://www.fdp.nu/cack_movie/johnself.asp

If anyone has managed to replicate it, what kind of difficulties did you get in to?

Thanks,

Mikey

Similar to Jan P. Cack device shown working here?
http://fr.youtube.com/watch?v=wcy0tedYBMg
Rotor magnets rotation around their axis and translation relative to the stators appears along the same principle.
Eric, Sean, some very nice workmanship there.
Thanks for posting.

[gyulasun]

Hi,

this video ( http://fr.youtube.com/watch?v=wcy0tedYBMg )  is faked,  see this comment on it here:

http://www.overunity.com/index.php?topic=3245.msg50812#msg50812

Gyula

[Ergo]

www.pese.cjb.net

What kind of bullshit spam virus link is this!?!?!?
Stop posting crap stuff like that. It's totaly annoying.

[mikestocks2006]

Hi,

this video ( http://fr.youtube.com/watch?v=wcy0tedYBMg )  is faked,  see this comment on it here:

http://www.overunity.com/index.php?topic=3245.msg50812#msg50812

Gyula

Hi Gyula,
I saw that post but I have to disagree. If you use full screen and go frame by frame one would notice:
The center post and pulley is stationary.(e,g. frames around 00:07)
The base of the lego set is sitting on top of a desk.
The 4 rotating magnets are all interconnected via the bands/strings, from their own free to rotate pullies to the center stationary one. Similar to a planetary gear system, with an extra "planet" ring
Because they are interconnected their relative motion is not the same as one just one magnet against another single one. This is a far more complex magnetic interaction system. I?ve also looked at the Lego blocks that are sold with magnets in them. Each has 2 small neo rods, oriented vertically and placed inside the 2 plastic round cylinders in the underside of the blocks. Those who have played with them before would know what I mean. Assuming from the video he used the standard magnetic blocks of this type, then  there are a total of 16 magnets in this setup. Again this is a complex magnetic interaction system.

could be a colored (transclear type) or a sets of 2 mini blocks
see pics http://stores.ebay.com/iLegos_Specialty-Parts_W0QQfsubZ119513819QQfrsrcZ1

Back to the motor.
Since the center post/pulley is not rotating I cannot see a function of a motor there in the center.
The Lego base (blue) is  thin and so is the green rotor base, with no other wholes or possibilities of a motor shaft through it anywhere else to impart motion on the green base through the shaft.
If there is a motor and to get such relative rotation between the two bases, it would have to be mounted between them in the thin gap, with some gearing attached offset to the center (since the center post/pulley are stationary) or something else not visible on the video view.

Maybe dadido3 could come in and clarify.

Thanks

[Omnibus]

Hi,

this video ( http://fr.youtube.com/watch?v=wcy0tedYBMg )  is faked,  see this comment on it here:

http://www.overunity.com/index.php?topic=3245.msg50812#msg50812

Gyula

No, no. The link you quote cannot serve as proof the lego motor is faked. It may or may not be but the comments "disproving" it are nothing more than gibberish,