Would a tack weld damage the magnets?
You can't weld the material in magnets (as far as I know) and what I'm worried about is how vawtman is going to mount that outer ring. If he welds something onto the inner ring to support the outer ring, the heat is going to cook the magnets. Getting magnets hotter than about 150F can make them decidedly non-magnetic. Steven Fahey[ Parent ]
Brackets could be welded to the ring that would have a hole for threaded rod,( or simply drill the ring if its tall enough) then the wheel need only be drilled for the rods... ring spokes as it were....
We're all waiting to see what your going to do next VAWTman....
. Have Fun! Windstuff Ed[ Parent ]
The wheel is cast iron and i cant weld it nor would i with the mags near the weld zone.I tested a neo on my wood stove once and it's cool how it just fell off.
The bracket will be welded to the outer band though and installed has a completed assembly to the wheel using epoxy and bolts.I'm thinkin of making the brackets with 2in.x 3/16 same has used for the band.
I'm not sure if want to make the band adjustable or not yet.I'll probably set the gap at 1/2 in. and see how a test coil works.I can always make adjustment to them at a later date.
Havin fun [ Parent ]
Cast iron(the rotor)is very porous to begin with but i also divoted each mag location with a center punch ~20 times.The mags were scratched with a hacksaw blade.
I did a test before starting and the mag broke trying to remove it.Sacrificial lamb so to speak.No potting needed.
This is the stuff and works great.
http://www.fieldlines.com/story/2008/7/27/204224/519 [ Parent ]
