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<div>Thanks folks, I got it. It's a GM100 Ø1" gimbal mirror mount, for adjusting the mirror without changing the axis of rotation. I can see how a POLARIS in that position can be a little like adjusting cantilever brakes on a bike – lots of axes of adjustment
and changing one effects all the others. Having something there that adjusts like 'V' brakes do (independent axes, less frustration) seems like a good idea. </div>
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<div>All the best, </div>
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<div>Tim</div>
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<div>Timothy Feinstein, Ph.D. </div>
<div>Research Scientist</div>
<div>University of Pittsburgh Department of Developmental Biology</div>
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<span style="font-weight:bold">From: </span><<a href="mailto:openspim-bounces@openspim.org">openspim-bounces@openspim.org</a>> on behalf of Timothy Feinstein <<a href="mailto:tnf8@pitt.edu">tnf8@pitt.edu</a>><br>
<span style="font-weight:bold">Date: </span>Wednesday, August 5, 2015 at 9:07 AM<br>
<span style="font-weight:bold">To: </span>"<a href="mailto:openspim@openspim.org">openspim@openspim.org</a>" <<a href="mailto:openspim@openspim.org">openspim@openspim.org</a>><br>
<span style="font-weight:bold">Subject: </span>[OpenSPIM] ID'ing a part<br>
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<div>Hello, </div>
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<div>Please forgive the super-basic question. In most diagrams on openspim.org the last mirror housing before the sample chamber is another POLARIS, but in more advanced designs the mirror housing is a larger and unique item not specified in the basic build
list. Can someone let me know what that is? Many thanks and apologies if this is answered somewhere else, </div>
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<div>Tim</div>
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<div>Timothy Feinstein, Ph.D. </div>
<div>Research Scientist</div>
<div>University of Pittsburgh Department of Developmental Biology</div>
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