Self-Powered Generator - Inventor From South Africa

[gyulasun]

Hi SkyWatcher,
It is going to be a nice setup. The distance-adjustable coil bobbins wrt the rotor magnets are a good idea and so is the tape around the rotor magnets to prevent them from flying out. Last week I sent you a message via this forum, have you read it?
Gyula

[SkyWatcher123]

Hi all, Hi gyulasun, thanks for the reply and the positive encouraging words.

I am aware of the thread in that forum, though I briefly forgot about it, thanks for reminding me, I'll keep my eye on it.
I realized the main structure needed some reinforcements, so I added some angle bracing to the main coil board and will add a couple braces to the smaller board on the other side.
peace love light

[SkyWatcher123]

Hi all, I am in the process of finishing up the main structure and bracing and I am noticing the wheel makes a bit of noise.

It's not intolerable, I tweaked the threaded bearing cone and aligned the wheel shaft and was able to lessen the bearing noise.
In the past, I built a one coil, 26" bicycle wheel setup that had barely any bearing noise discernable.

Is it possible the bearing on this wheel is just not designed as well or could it be all the mdf board creating a speaker transducer effect, amplifying the little noise coming from the bearings.I'm using that 3in1 type household oil in the bearings.

Also, if i attach the wheel shaft bolts, and tighten them, it makes quite a bit more noise, If I remove them, and slightly move the mdf board away from the wheel shaft inner nuts, the noise is even less, sure seems like speaker effect.

Any suggestions for reducing the noise a bit more is appreciated, thanks.peace love light

[gyulasun]

Hi SkyWatcher,

You found a clanking sound problem already at the start because you wrote in reply #38: "Also had to add a single ball bearing to both sides of the bearing cups of the wheel, as it makes a clanking sound without the added bearing, when using the thin oil."

So this particular wheel you happened to get may have issues with the bearing and the noise is 'amplified' by the structure, this latter can happen, unfortunately.
Found on the web:  "A mixture of graphite and other additives is installed around balls on the cage of a bearing, then treated with pressure and heat. A minute layer of graphite adheres to all contact surfaces of the bearing, and when balls need to turn, the graphite provides the necessary lubricity."

Maybe such graphite treatment can help reduce your noise too, due to the particles fill up the 'gaps' between the contact surfaces. See these too: https://www.youtube.com/watch?v=iSTfFIetYPY    https://www.youtube.com/watch?v=DaG_CLsdN4M

Maybe first you need to soak out all the previous lubricant to 'dry out' the bearing, then apply the graphite lubricant.
Maybe Magluvin chimes in with some more info.

Gyula

[SkyWatcher123]

Hi gyulasun, thanks for the reply and information, I'll have a look at those videos shortly, maybe a better lubicant will help even more.
In the meantime, I rebuilt the front wheel holder, made it out of 3/4" mdf, instead of 1/2" and made it smaller, to reduce speaker effect.
It has helped a little more, at least it will be tolerable, even as it is now for testing.
peace love light