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# Re: [FEMM] axisymmetric femm problem with ringmagnet and steel plate

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- Subject: Re: [FEMM] axisymmetric femm problem with ringmagnet and steel plate
- From: Keith Gregory <K.Gregory@lboro.ac.uk>
- Date: Wed, 14 Jan 2004 16:30:28 +0000
- In-reply-to: <100021A487080D41818C9388A15A08F707185C@atwisrv1.corp.ottob ock.int>
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At 13:05 14/01/2004, you wrote:

> calculation I get an error, telling me that the problem couldn't be solved.
> Our problem should be able to be solved with FEMM, since it is an
> axisymmetric problem. However, I can only let FEMM solve it if I set
> problem-type to planar !?

It's failing because the point at the top is not exactly on the axis of symmetry but slightly to the left. If you reposition it using the snap grid it should work.
Keith.

- References:
  - [FEMM] axisymmetric femm problem with ringmagnet and steel plate
    - From: "Walter,Reinhard" <Reinhard.Walter@ottobock.at>

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