Re: The OC MPMM

[Magnetmad]

Hi Starwave,

sorry this type of device is not able to run anything, its just an ongoing thing to try to find the best setup for maybe going big!

Cheers Dave

[starwave1967]

could the system run a small pump to airate a small fish tank?

can we email?

[starwave1967]

could you sell me a kit to set up at home? i love this stuff

[Magnetmad]

@starwave1967

I can build u any kit u like, just need to cover my costs

Cheers Dave

[kakureru]

fake, you can totally see the drill chuck... :P

(yes people my comment is a joke)

[francix77]

@kakureru Jajajajajaja!!!

[flavio1047]

muito bom motivo de risada abraço

[Magnetmad]

very good reason to laugh hug

[zogeth]

What type of bearing was that? I'm trying to test NTN and SKF

[Magnetmad]

SKF I am using 2* 1/2 1/3 1/8 inch, you may need to try more than 1 because i found from 10 only 4 are usable...

[cosmik3]

using a drill

[Magnetmad]

Hi cosmik3

Just to note that this was a bearing test and nothing else, other work will follow shortly

[AdminOnDuty]

The rotor (crown wheel as you call it) has shown rundown times as high as 10 minutes, from 1250 RPM, in tests with no stators. Al's stators spin for about 4 seconds when whipped as fast as humanly possible with no outside influence. Tests indicate that GW operation has more drag than AGW and AGW more than no stators at all, on replications. On Al's rig AGW shows positive torque. With stators in place the rotor has a 120 second rundown time from 1250 RPM in GW mode on Al's rig. All rotor RPM's.

[Magnetmad]

10 min not to sure if that mns the crwn is 2 hvy?

have a test i am trying on mine, maybe you find it intresting,draw a stright line from center of crwn over and between the rod magnets and out to the center of the stat 0---00--0 any excess in this area will cause in-balance, so i am looking at not only lining up, but weight ratio/mass over the length. the stat mags field could be defined by using aline--0--this line must not clash the the line of the crnwhl but sycn. Think pack of cards!!

[Magnetmad]

Hi Admin

Between 500-850 seems to grip best, but it will grip at higer speeds. The center hub is from a vid-rec I changed the bearings out to reduce friction by 50%. The bearings on the stators are used in a dry state to reduce drag My spindle was running at 2500+/- so the stator*4 will be around 10.000+/-Have you any ideas where its going from here?? Iam thinking multi stage!!

[AdminOnDuty]

Well done, is there an optimum speed that you find AGW syncs up easier? The bearing test is for the stator correct? Is that a HD spindle?

Most of the R2A bearings are rated around 5000 tops but I have pushed them much higher. Of course it all depends on load and lubrication. The loads we are putting on them are so small we run them dry and they don't seem to alter thermodynamically - this seems to provide the least resistance. Was your spindle running at 2,500 and thus 10,000 on the stator? :)

[Magnetmad]

Between 500-850 seems to grip best, but it will grip at higer speeds. The center hub is from a vid-rec I changed the bearings out to reduce friction by 50%. The bearings on the stators are used in a dry state to reduce drag My spindle was running at 2500+/- so the stator*4 will be around 10.000+/-Have you any ideas where its going from here?? Iam thinking multi stage!!

[AdminOnDuty]

The big push right now is to determine why AGW is even possible. My analysis indicates that shearing must occur during negative torque and this is encouraged by the postive torque duration of AGW. If shearing does occur then the flux must route back to the individual magnets rather than connecting through the triple set. This disconnection creates an imbalance in the system and unfortunatly also occurs during postive torque resulting in losses. Al's stays connected here where ours doesn't. Why?

[Magnetmad]

I think that the crown wheel must run on its own for 4 mins+(without stators)the same effect as a spinning top, and the stators must run total free with magnet in place but with out the crown wheel--my first attemps all failed because i did'ent check the free running parts. I am sure that the crown wheel use's the stator as a brake, but because the brake cant stop it just keeps going a bit like rolling down an hill?????