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Using body filler to hold magnets
By RobD, Section Homebrewed Electricity Posted on Tue Mar 09, 2004 at 06:45:16 PM MST
Anyone tried it?

I was thinking of using fiber glass reinforced body filler instead of epoxy to hold my mags in place. I'd run a thin strap over the magnets and then cover everything with filler.
RobD

Using body filler to hold magnets | 3 comments (3 topical)

Re: Using body filler to hold magnets (none / 0) (#1)
by windstuffnow on Tue Mar 09, 2004 at 07:10:21 PM MST

Rob,
I've used fiberglass resin with a cloth over coat with good success. Never tried the bondo. There is alot of attraction to the steel when the magnets are in close proximity.

When I was building the modified GM alternators I started with epoxy but had a couple mishaps with magnets comming off and went with the fiberglass resin with the cloth wrapping. Never had any come off after that. Its messy but it works.

Have Fun
Windstuff Ed

Have Fun! Windstuff Ed

Re: Using body filler to hold magnets (none / 0) (#2)
by dburt on Wed Mar 10, 2004 at 05:31:43 AM MST

I have. I would not recommend it because it's REAL hard to get the bondo "level" without sanding or something. To minimize air gap, you don't want a lot of bumps and stuff sticking up above the face of the magnets. I've also used fiberglass resin. The resin is much easier because it is more liquid, so you just pour it in, it levels itself.

Dave in PA

Re: Using body filler to hold magnets (none / 0) (#3)
by RobD on Wed Mar 10, 2004 at 08:05:21 PM MST

Dave,
I machine it after setting to the exact dimensions I need.

Ed,
I'll look into your method.
RobD

Using body filler to hold magnets | 3 comments (3 topical)

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