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Pouring the Magnet rotors | 2 comments (2 topical, editorial)

Re: Pouring the Magnet rotors (3.00 / 0) (#1)
by electronbaby (roy<at>windsine.org) on Tue Aug 5th, 2008 at 04:00:11 PM MST
(User Info) http://www.windsine.org

I have had good luck using vinyl ester resin with small bits of fiberglass mixed in.

I also have had good luck with west systems epoxy. Its really expensive. But this is what I have been using lately. It is a thinner viscosity and therefore hard to keep the air bubbles out when casting rotors upside down. It can be overcome by adding ATH to raise the viscosity.

I suggest staying away from polyester resin for magnet rotor casting.
Have Fun!! RoyR KB2UHF

Re: Pouring the Magnet rotors (3.00 / 0) (#2)
by Todd a on Sun Aug 10th, 2008 at 04:33:14 PM MST
(User Info)

yup... bubles are an issue, but also sealing themold well and using a good mold release is very critical if you want to get your stator ring out in one piece (I spent hours tearing my mold apart to to get my stator out in one piece).

[ Parent ]

Pouring the Magnet rotors | 2 comments (2 topical, 0 editorial)

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