garbogen attempt

[pepa]

       This will be a continuing diary for building a ¾ hp garbogen under jerry's watchful eye (I                        hope)... I feel that I have enough information to complete this project but it is always nice to have someone to verify your efforts. This is my first conversion and I am looking forward to working on it with all the extra pieces that I have to build and fit. First the magnets, curved magnets are not available to buy so I built some of my own.

       After spending a half day fighting the small 1/4x3/8x¼ n42 neos into a skewered shape that I wanted, I found a way that was so easy I just set back and had a good belly laugh at myself. It now takes just a few minutes to assemble a curved magnet to your specks with no fighting.  Here are a couple of pictures. Stay tuned, the rotor and spindle are next. pepa








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[luv2weld]

pepa,

would you mind explaining your simple solution?

I looked at the pictures, but have no idea what you are gluing them to.

Butcher paper, paper towels, ?

Is that contact cement or what???

I want to try a garbogen also, so I would like to have

any info that would make it easy or simple ( for a

simpleton like me)

Thanks

Ralph

[pepa]

     hi Ralph, i used a metal cooking pan upside down with several large neos stuck to the inside bottom of the pan. this makes the little neos stay close togather even when they dont want to, not tight but close, and the layout is a lot easier. the worst part is finding all the north poles, mark all the n's and you are ready to go.

     lay out your design on a piece of typing paper, paint the layout with contact cement (i used weldwood brand) the magnets will make a chain the length you want (i used eight for a chain of one and seven/eighth inches, i will add two more to mine for more strenth, to make 2 3/8" wide and five down for a hight of 1 7/8"high which is the the hight i need for the 3/4 hp.

     paint the bottom of your chain with cement, let it dry, and place on layout. continue with the other four chains bit make shure thar the poles repel, if not turn end to end and the new chain will repel from the glued chain, lay with n up, thats it, make two N and two S poles. if you have trouble with this just holler. let's all work togather. Pepa

[hiker]

so when you go to lay the mags down on the rotor they will have

a layer of paper on the bottom side-that side is glued down to the rotor..

so arnt the mags just glued to the paper-not the rotor..

in other words the mags have a piece of paper between them and the rotor.

so are you going with the plastic bottle-heat shrink rout -to futher

hold the mags down??   just tryin to figure it out.....  :}

[TomW]

Hiker;

My first thought was it will have the paper on the "top" of the mags after gluing. Seems that would work once they are attached to a backing anyway?

Just guesses here.

Tom

[pepa]

hi hiker,

the paper will come off very easy with a few wipes of a damp cloth and that leaves a smooth water proof seal holding the magnets togather and they are flexable enough to fit around the rotor. i am just figuring this project as i go.

hi Tom, you are right, i did plan to glue the clean side to the rotor. pepa

                                                                     

[pepa]

another easy step in finding and marking the N pole on these small magnets is to rap a paper towel around a strong neo and with the N polr up. pass it over a single small magmet at about two inches and the small magmet will jump up to it and attach itself with it's N up. still playing, pepa

[luv2weld]

Thanks pepa

I'm copying all the info into a word processor so I can print it out and take

it to the workshop with me when I'm building. Don't have to rely on a failing

memory when I'm trying to put it together.

Ralph

[pepa]

   hi Ralph, i found a what i thank is a better magnet at a lot less money per motor. hppt://www.magnet4less.com has the curved neos we need, 2"od x 1 7/8 x 1" high n42 neos stock #na006 @ 4.0 a pr. or $16. for eight pair. you will need two magnets per pole insted of #50 each pole for a total of two hundred magnets @ $64. even if we have to stack two thick per pole it is still a good deal, i just ordered 24 pr for three stators. just playing, pepa

[ghurd]

Anything has to be better than squeezing 200 magnets onto a garbogen rotor!

They will leave a gap under the center of the magnet.

I believe the gap under a magnet reduces the flux to the coils, just the same as if the gap was between the magnets and laminations.

I did something like you are planning.

I put pieces of hack saw blade in the gap between the magnets and rotor.

Not sure how much it helped, but it made me feel better!

G-

[pepa]

    hi Ghurd, i agree with you completely, even though it was fun playing with the little magnets, i have read several places where solid magnets are stronger and better than multiple magnets. i am glad i found the arc mags as i was getting ready to order more little ones to finish up the four poles. thanks for the help, pepa