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<p style="margin: 0 0 1em 0; color: black;">Tried that. Still not pretty.<br>
Steven R Hood<br>
310.756.3555<br>
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<p
style="color: black; font-size: 10pt; font-family: Arial, sans-serif; margin: 10pt 0;">On
June 25, 2015 7:02:20 AM Patrick McCreary <vze2gmht@verizon.net>
wrote:</p>
<blockquote type="cite" class="gmail_quote"
style="margin: 0 0 0 0.75ex; border-left: 1px solid #808080; padding-left: 0.75ex;">
Hmm...<br>
<br>
Maybe try a donut rather than mess with the reflector optics.<br>
<br>
Patrick<br>
<br>
<div class="moz-cite-prefix">On 6/25/2015 9:40 AM, Steven Hood
wrote:<br>
</div>
<blockquote
cite="mid:14e2af2f778.27f5.6f7d1c9102b81228b121511c9b3868d0@yahoo.com"
type="cite">
<div style="color: black;">
<div style="color: black;">
<p style="margin: 0 0 1em 0; color: black;">From what the guys
who've been
doing the focus work tell me, it's been an issue with
clearing the outer
edges of the lens field. The lens support posts in the 36
deg lens tubes
are visible in the beam unless the Z is cranked way back.
19s and 26s are
fine.<br>
Steven R Hood<br>
310.756.3555<br>
</p>
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<p style="color: black; font-size: 10pt; font-family: Arial,
sans-serif; margin: 10pt 0;">On
June 25, 2015 5:41:00 AM Patrick McCreary via Stagecraft
<a class="moz-txt-link-rfc2396E"
href="mailto:stagecraft@theatrical.net"><stagecraft@theatrical.net></a>
wrote:</p>
<blockquote type="cite" class="gmail_quote" style="margin: 0 0
0 0.75ex; border-left: 1px solid #808080; padding-left:
0.75ex;"> I learned somewhere some time ago that Kerosene
was the recommended lubricant for machining aluminum;
perhaps a drop or two on the offending part would help?<br>
<br>
What baffles me about the Z adjustment conjecture is that it
seems to contradict what I know of ERS geometry - I would
think that the Z adjustment is about positioning the
filament in the focal point of the ellipse, and that the
lens system optics wouldn't have any effect on that - maybe
a slightly off batch of lamps?<br>
<br>
Patrick<br>
<br>
<div class="moz-cite-prefix">On 6/24/2015 6:21 PM, Steven
Hood via Stagecraft wrote:<br>
</div>
<blockquote
cite="mid:868532018.638952.1435184491035.JavaMail.yahoo@mail.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff;
font-family:HelveticaNeue, Helvetica Neue, Helvetica,
Arial, Lucida Grande, sans-serif;font-size:16px">
<div id="yui_3_16_0_1_1435184224214_2358">Lighting
folks,</div>
<div id="yui_3_16_0_1_1435184224214_2358"><br>
</div>
<div id="yui_3_16_0_1_1435184224214_2358">Have any of
you had an issue with the outer (XY) knob/nut seizing
the aluminum hub casting? We have... I've had to drill
out 3 of them this year - all from units that had been
assigned 36 degree lenses. It seems like that hub
casting is heating up more from having to pull the Z
adjustment so far into the reflector and seizing on
the outer nut as a result. Is there some way to
prevent that deformation?</div>
<div id="yui_3_16_0_1_1435184224214_2358"><br>
</div>
<div id="yui_3_16_0_1_1435184224214_2358">TIA,</div>
<div id="yui_3_16_0_1_1435184224214_2358">Steven R. Hood</div>
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