Has anyone seen Lasersabers new motor runs on 1000uf cap

[Magluvin]

http://laserhacker.com/forum/index.php?topic=155.0

http://www.youtube.com/watch?v=JNBi6qoW5SI



Mags

[gyulasun]

Finally got some time to work on this. Got the rotor drilled out for mags and Im winding a coil on the rotor for other tests I want to do while Im at it. The winding in the pics is the first of 2, and the second winding will have many more turns. Just to have 2 variations to test.

Will be wiring things up this week. Pondering what to use as terminal posts. Have some bare copper wire from Ace Hdwr.

Mags

Hi Mags,

Nice progress!  I believe pieces of thick bare copper wire would serve for terminal posts.  Albeit, you may have to use a hefty power soldering iron to do any soldering (or unsoldering) to them.

Gyula

[Magluvin]

Hi Mags,

Nice progress!  I believe pieces of thick bare copper wire would serve for terminal posts.  Albeit, you may have to use a hefty power soldering iron to do any soldering (or unsoldering) to them.

Gyula

Thanks.     Yeah, Im going to make some U shape with the copper wire and drill 2 holes in the plexi ring(upward) then a bit of Marine Goop on the bottom. 2 between each coil so I can vary things if I want. Also once I solder the coils leads to one side of the U, I wont have to deal with that any longer and just do hookups on the other sides of the U's.

When I wind the second set of coils, bifi, Ill just make another ring and etc. Just swap out the stator rings to test.

The winding on the rotor, this is going to be a test of the Faraday paradox. The magnets will be NSNS and the windings are all UP DOWN UP DOWN accordingly. The windings on the top and bottom should be neutral to the magnets fields(field distortions, concentrations) as they run the direction of rotor motion. Will try an led mounted toward the center of the rotor, and if that doesnt work, Ill make a small set of slip rings for brushes just to see if anything is there. I used the 42awg about 25 turns zig zagging around the rotor. I bounced back the other direction when I hit the beginning to fill in the tops and bottoms. I could have wound each block separately, but, Im me.

I had some trouble getting this rotor to level out. My bearings have a flange, but my drilling may have bulged the center hole sides. Block sanded but not as good as I like. My hole on one side was a bit wide for the bearing. So at Ace Hdwr they have fiber washers that fit the bearing nice and tight, while still having some bearing into the rotor material. Then I set the rotor on the post, fiddle a bit till level then thin superglue the fiber washer to the rotor. Now the rotor can be removed off the spindle post without worry. Did a quick spin and mark any high spots on the outer edge of the rotor then sand a bit. Looks good. Nice and balanced. Also found a nylon washer than fits snug on the spindle post to help keep dust out of the graphite treated bearing.

The Spindle post is just an aluminum spacer post that fits the bearing from the hobby shop. Gota keep all these things in mind. But its amazing what you can find locally. The spacers are machined and if screwed down to a level base will most likely be straight up and down. On this plexi base, I used a larger diameter spacer under the spindle post(spacer) to ensure it is level. Its possible the spindle post could be screwed down and cause an impression in the plexy and maybe not all that level. Especially with all the finger motoring, lol  manual spinning can cause issues with level of the rotor if the spindle post is not mounted well.

This pic is of the bottom of the rotor with all the lines for magnet positions and cut lines for the windings.
Mags

[Magluvin]

Came up with a nifty solution for wire terminals.  Have some terminal strips that come with Arduino custom boards.

Mags

[gyulasun]

Came up with a nifty solution for wire terminals.  Have some terminal strips that come with Arduino custom boards.

Hey Mags,

I suspected you turn to some very elegant eye-catching solution for the terminals.   

Just keep it up.

Gyula