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<blockquote data-quote="sundownz" data-source="post: 3428235" data-attributes="member: 549523">I&#039;ve done some designs and gained at-rest BL over an underhung topology with the same magnet structure in my FEA simulation. IIRC I had to change the top plate height a bit, but it was very close to the same -- and the magnet structure and other details were un-changed.It does lose at-rest BL vs other non-underhung topologies, but also steer it to the outside edges -- I&#039;d imagine the average BL over the total travel would probably be about the same, if not greater. I&#039;d like to sit down and crunch numbers at some point to see if that is an accurate statement.It&#039;s hard to do a straight A-B comparison, though, as you end up with significantly different top plates with the same height coil to achieve similar goals -- and with the same height top plate for the same x-max you end up with significantly different coils. So I&#039;m not sure how the best way to go about the &quot;average BL&quot; calculation would be as a &quot;fair&quot; comparison to all topologies.</blockquote>

[QUOTE="sundownz, post: 3428235, member: 549523"] I've done some designs and gained at-rest BL over an underhung topology with the same magnet structure in my FEA simulation. IIRC I had to change the top plate height a bit, but it was very close to the same -- and the magnet structure and other details were un-changed. It does lose at-rest BL vs other non-underhung topologies, but also steer it to the outside edges -- I'd imagine the average BL over the total travel would probably be about the same, if not greater. I'd like to sit down and crunch numbers at some point to see if that is an accurate statement. It's hard to do a straight A-B comparison, though, as you end up with significantly different top plates with the same height coil to achieve similar goals -- and with the same height top plate for the same x-max you end up with significantly different coils. So I'm not sure how the best way to go about the "average BL" calculation would be as a "fair" comparison to all topologies. [/QUOTE]

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