New Stagger Stator PMM Design. Review wanted before construction.

[nwman]

A simple way possible to add a slide to the magnet so it can "wobble" through the fields is to add one of these side tracks to the outer edge of the rim and attach the magnet to it so it can slide side to side. Hopefully I'll know more in the next few days if I will need to do that.

Tim

[nwman]

I was thinking I might as well get your input too on if I should use the bike rim or if I should build just a straight arm with a axle ($30)? Then I could make it bigger diameter if you think it would be better? The axle my not be as low friction as the bike wheel though.

Tim

[d3adp00l]

axles and hubs already built are always easier than doing yourself, I would start with the wheel. And again I will say this, I wish I was good at making those pictures everyone here seems to be able to blast out no problem, I can draw it by hand to scale in triple view, but I don't have the software to make it worth the time to do it on a comp. Anyways I digress, your pic is close, take both pieces of ply with like 120 degrees of arc, lined up side by side, then connected to both a thin plastic/paper board perpendicular to the ply, with whatever width you need to acomodate the mags, with a good staple gun you could glue and brad staple the plastic to the arc edge of the ply. Then you could make your rail assemblies and be able to move them for timing, you could cut another thing arc of ply and attach the rails to the side with some epoxy, attach anoth piece of plastic to the bottom of the rail ply and that would make it possible to clamp the rail to the stator arc anywhere you want. And worry about wobble after the prelim test. just to plug more info into your head, wobble linear vrs non wobble, gives a better understanding of its importance.

[nwman]

d3'

Now I see what your saying about the plywood. Make kind of a skateboard half pipe ramp out of it?

Tim

[Low-Q]

Here is a simple graphic of how I would like to build the first crude loop. I'm concerned with how great the arc of the magnet rails would be and with the fact that the magnet can't wobble. However, I hope once I get the linear prototype done I can set to see if I can run it in a straight line or not. The rails in the pictures are cut peaces of another bike rim with the magnets taped to the outer edge of the rim segment. This will either work really slick or not at all.

Tim

To ease the construction, you can make two long iron bars and use them as electromagnets. That way you can shape the magnets as you want. When you find a working shape, just replace the electromagnet with permanent magnets.

Br.

Vidar