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William,<br>
In the photo that you attached to your post, while the legs were
nonadjustable, you had used the same UniRac Solarmount hardware that
is so problematic when set up to be adjustable. The twirl nut can
easily be loosened too far, until it loses its alignment in the
u-channel, or worse, is loosened too much and drops to the foot.
Customers have legitimately criticized this approach, and I won't
use it any more.<br>
Allan<br>
<br>
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<font face="Times New Roman, Times, serif"><b>Allan Sindelar</b></font><br>
<small><a href="mailto:Allan@positiveenergysolar.com"><font
color="#000099" face="Times New Roman, Times, serif"><u>Allan@positiveenergysolar.com</u></font></a></small><font
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<span style="font-size: 10pt;">NABCEP Certified Photovoltaic
Installer<br>
NABCEP Certified Technical Sales Professional<br>
New Mexico EE98J Journeyman Electrician<br>
<b>Positive Energy, Inc.</b><br>
3201 Calle Marie<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
<a href="http://www.positiveenergysolar.com/" target="_blank"><u>www.positiveenergysolar.com</u></a><o:p></o:p></span></font>
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<br>
On 3/24/2012 1:27 PM, William Miller wrote:
<blockquote
cite="mid:6.0.1.1.2.20120324103002.0297bf08@millersolar.com"
type="cite">Allan:
<br>
<br>
We recommend the custom, top-of-pole roof-mount:
<a class="moz-txt-link-freetext" href="http://millersolar.com/MillerSolar/Portfolio/pole_mount/Custom_tracker_moutn_on_power_shed.jpg">http://millersolar.com/MillerSolar/Portfolio/pole_mount/Custom_tracker_moutn_on_power_shed.jpg</a><br>
<br>
Just kidding! (A customer rigged this up. Scary...).
<br>
<br>
We have used the DPW TTRGM racks on flat roofs. We have a few of
them tilted up on pitched roofs, but I avoid lifting them because
of aesthetics and wind loading. If this is an off-grid,
adjustability or at least a higher tilt angle is necessary, so
this rack would suffice. It does require at least two people,
preferably three, to adjust.
<br>
<br>
We build them with the legs set to high and then lower them all of
the way, or part way, depending on the design. Some new modules
do not have flanges in the back for through-bolting, these would
not work.
<br>
<br>
We have also used various brands of extruded rail with legs to
tilt them up. See attached photo. These get flimsy so I stay
away from them.
<br>
<br>
Good luck.
<br>
<br>
William Miller
<br>
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