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[Omnibus]

@All,

I'll go even further in my off-topic ramblings. Why not ask Stefan to make it a sticky thread and have a place where we would discuss and agree on what exact parts are to be ordered while waiting for Jason's drawings. Maybe @CLaNZeR as one of the savviest constructors would be willing to make a list of the concrete, say, magnets that are to be ordered to begin with. There still seems to be a bit of confusion about that. Also the bearings and whatever dampers etc. I'm preparing for ordering all this and I'd like to be sure it'll be the right one as much as possible, to avoid delays later.

P.S. I wonder if @tao already knows about this.

[Freezer]

Weee!     Another magnet motor setup to work on.  Looks promising, and simple.  I will give this a try and hope you guys good luck.   

[CLaNZeR]

Okay Base all done now:

(http://www.overunity.org.uk/ocpm/base2.jpg)

Hope this makes sense now regards the top bar and the slots for altering the Stator/dampner positions.

[Omnibus]

@CLaNZeR, you're amazing. Keep on doing the good job, mate.

[CLaNZeR]

Would NOT say I am one of the Saviest contructors, you know me, I am like a Bull in China Shop LOL.

Regards the Dampners and Magnets, I just email Craigy and check with him 

I think the Stator magnets are pretty obvious and Craigy has supplied the link and the part number, I have ordered these but like everyone else have to wait for delivery from USA
The Rotor magnets should not be too bad as the design of the Rotor allows us to move the position and also change the config.

The reason I have gone for the Top bar is after building alot of Rotors, this is the best configuration to reduce your losses, but maybe with this configuration it is not needed as much, but playing safe this end.

Where is the other thread on this subject?

Cheers

Sean.

@All,

I'll go even further in my off-topic ramblings. Why not ask Stefan to make it a sticky thread and have a place where we would discuss and agree on what exact parts are to be ordered while waiting for Jason's drawings. Maybe @CLaNZeR as one of the savviest constructors would be willing to make a list of the concrete, say, magnets that are to be ordered to begin with. There still seems to be a bit of confusion about that. Also the bearings and whatever dampers etc. I'm preparing for ordering all this and I'd like to be sure it'll be the right one as much as possible, to avoid delays later.

P.S. I wonder if @tao already knows about this.

[CLaNZeR]

Oh Quick Plug from me as well, Selling one of my Desktop CNC Machines, so if anyone is interested in a Bargain check out

http://cgi.ebay.co.uk/CNC-Desktop-Frame-with-Stepper-Motors_W0QQitemZ200188834727QQihZ010QQcategoryZ12584QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

6 Days to go!!!

Cheers

Sean.

[Omnibus]

@CLaNZeR,

I'd like to check with you again before ordering, just to be sure. Magnets to be ordered are these:

kjmagnetics.com

Part Number: R834DIA
1 Pack of 10
Unit Price: $17.10
Product Total: $17.10
--------------------------
Part Number: B448
1 Pack of 10
Unit Price: $8.20
Product Total: $8.20

Have we all agreed on that? And the amount is one pack of each type (part number), that is 20 altogether, correct?

How about the bearings and the damper? What are they and where are they to be ordered from?

And now, to annoy you completely, what else do you think should be ordered?

Thanks in advance.

[TheOne]

Okay Base all done now:

(http://www.overunity.org.uk/ocpm/base2.jpg)

Hope this makes sense now regards the top bar and the slots for altering the Stator/dampner positions.

Nice, what you are using to cut your plastic like that!

I have a scroll saw and i broked 4 blades just trying to cut my rotor and its still not finished lol

I need help

[Omnibus]

@CLaNZeR,

In the picture you posted here: http://www.overunity.com/index.php/topic,3871.msg68193.html#msg68193  it appears that the magnets on the rotor are cylinders. The magnets B448 recommended, however, are rectangular. Am I missing something? Sorry if that question has already been answered.

[CLaNZeR]

kjmagnetics.com

Part Number: R834DIA
1 Pack of 10
Unit Price: $17.10
Product Total: $17.10
--------------------------
Part Number: B448
1 Pack of 10
Unit Price: $8.20
Product Total: $8.20

How about the bearings and the damper? What are they and where are they to be ordered from?

For the Rotor Magnets I have gone for the http://www.kjmagnetics.com/proddetail.asp?prod=B444 as they are 1/4*1/4*1/4 but worth getting the B448's as well for experimenting I reckon.

The R834DIA pack for the Stators is what I have also ordered.

From what I understand the Dampners are just bits of Ally Bar say 8-10mm that keep the Rotor spinning at 5000 RPM, but it seems a bit of miss or hit where you place them. In the Video it seems there are two place either side of the rear magnet. These basically bring Lenz Law into play and stops the Rotor from getting carried away.

I am going to use 3mm Internal Diameter RC Bearings and lathe down a Brass Axle to fit the Rotor and the Rotor itself.

Hope this helps, not saying it is 100% correct but that is what I am going with after talking to a few people.

Cheers

Sean.

[CLaNZeR]

@CLaNZeR,

In the picture you posted here: http://www.overunity.com/index.php/topic,3871.msg68193.html#msg68193  it appears that the magnets on the rotor are cylinders. The magnets B448 recommended, however, are rectangular. Am I missing something? Sorry if that question has already been answered.

Alsetalokin used Rod magnets but the designer OC thinks block magnets would be better, so for now going for blocks, but the design of the rotor will allow Rod magnets to be placed easy enough if we find blocks not working.

As I said before I do not think the exact sizes really have to be spot on, but it is more the effect that is the key.

Should be an exciting couple of weeks 

[CLaNZeR]

Nice, what you are using to cut your plastic like that!

I have a scroll saw and i broked 4 blades just trying to cut my rotor and its still not finished lol

I need help

Sorry mate, no quick fix when it comes to hard labour.
I cheat LOL, I have a small Desktop CNC machine that does all the hard work for me.

[Jdo300]

Hello All,

Still working on the CAD drawings for the motor. I ran into a small discrepancy in the given dimensions so I thought I would pass this along to you all. Alsetalokin mentions that the radius of the rotor disk is 2.875 inches with 0.25" slots for the magnets. He then goes on to say that the inner edge of the slot is 2.5" away from the center of the disk. However, after drawing this up in AutoCAD, I noticed that the distance from the outer edge of the slot to the edge of the disk appeared to be 1/8" smaller than what seems to be shown in photos of the actual device. So I increased the radius of the disk by 1/8" to 3" and now the CAD drawing seems to fit nicely with the photo when overlaid onto it (See attached images). Can someone who has contact with Alsetalokin pass this information along to confirm what I am seeing here? I don't mean to be too nit picky about the specs but I don't want to take any chances with the distances between the magnets.

Thanks,
Jason O

[Omnibus]

Jason, I don't think you're nitpicking at all. Replication should be done exactly as @alsetalonkin's device. That's why I don't think also we should use rectangular magnets but should use the exact cylindrical magnets @alsetalonkin uses. What are they? I second @Jdo300 in asking someone to verify these issues with the actual constructor (not with someone who gave the idea). 

[TheOne]

Nice, what you are using to cut your plastic like that!

I have a scroll saw and i broked 4 blades just trying to cut my rotor and its still not finished lol

I need help

Sorry mate, no quick fix when it comes to hard labour.
I cheat LOL, I have a small Desktop CNC machine that does all the hard work for me.

Ah, I guess one of my next project will be to do a CNC machine http://www.instructables.com/id/How-to-Make-a-Three-Axis-CNC-Machine-Cheaply-and-/