[NSRCA-discussion] servo support

[JFGREEN]

Rex:  Thinking of using these supports,  installing another carbon rail
forward of the servo and tying the support to that.  Should stabilize the
risers. - Jerry

 

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From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Rex LESHER
Sent: Sunday, January 14, 2007 9:25 AM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] servo support

 

Lance

 

I'm with you on this....   I always thought that the support should be based
solidly, either from the servo case, or the servo mount....  there are 

several ways it could be done...  the only part that is hard to come by in
building something, is the servo horn screw...  In the past, I've used the 

appropriate size bolt with a ball from a ball joint on it.  I do like the
idea of the bearing much better....

 

Rex

----- Original Message ----- 

From: HYPERLINK "mailto:patterndude at tx.rr.com"Lance Van Nostrand 

To: HYPERLINK "mailto:nsrca-discussion at lists.nsrca.org"NSRCA Mailing List 

Sent: Sunday, January 14, 2007 8:47 AM

Subject: Re: [NSRCA-discussion] servo support

 

Sorry, but I have to question this.  I don't see how this can work well.  It
is very pretty and has all the right materials (ball bearings, carbon
fiber), but from a geometric point of view it raises many questions.  The
carbon base is cantilevered to the aluminum standoffs and the mounting screw
line is normal to the load, doing nothing to support the load.  The
standoffs put pressure on the CF base ina point load, something CF is poor
at withstanding.  THe geometric stability is provided only by the aluminum
standoff diameter, which is minimal.

 

The old JR ones worked, but barely.  The base was a full metal frame, which
improved the standoff cantilever problem.  As long as the metal frames were
straight and the aluminum standoffs were tightly screwed in and any bending
was prevented (once bent they never worked right again).  

 

Granted, these can be installed but whether or not they relieve the stress
on the servo is a totally different matter.  A design that I would believe
in would increase the base of the standoffs.  One way would be to use the MK
fluted control arms.  Another would be to make a triangular standoff with
the base wide at the bottom and lined up with the servo stress.

 

-Lance

----- Original Message ----- 

From: HYPERLINK "mailto:geobet at gis.net"george w. kennie 

To: HYPERLINK "mailto:nsrca-discussion at lists.nsrca.org"NSRCA Mailing List 

Sent: Saturday, January 13, 2007 9:42 PM

Subject: Re: [NSRCA-discussion] servo support

 

Boy, that looks even more positive than the JR type that I've been using for
years. Good stuff Rex !

G.

 

 

 

----- Original Message ----- 

From: HYPERLINK "mailto:trexlesh at msn.com"Rex LESHER 

To: HYPERLINK "mailto:nsrca-discussion at lists.nsrca.org"NSRCA Mailing List 

Sent: Saturday, January 13, 2007 6:05 PM

Subject: Re: [NSRCA-discussion] servo support

 

Here's two more, of a different variety....   one for Futaba, one for JR
servos.

HYPERLINK
"http://www.ronlund.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=heli&Pr
oduct_Code=4DRCF"http://www.ronlund.com/Merchant2/merchant.mv?Screen=PROD&St
ore_Code=heli&Product_Code=4DRCF  for Futaba servos....

 

HYPERLINK
"http://www.ronlund.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=heli&Pr
oduct_Code=4DRCJ"http://www.ronlund.com/Merchant2/merchant.mv?Screen=PROD&St
ore_Code=heli&Product_Code=4DRCJ   for JR servos....

 

These are a little different, but they have lots of neat parts on them...
If the standard JR support has changed and did away with the 

metal frame, these might be better for our use....  

 

Rex

 

 

----- Original Message ----- 

From: HYPERLINK "mailto:jf217green at cmc.net"JFGREEN 

To: HYPERLINK "mailto:nsrca-discussion at lists.nsrca.org"'NSRCA Mailing List' 

Sent: Saturday, January 13, 2007 2:45 PM

Subject: [NSRCA-discussion] servo support

 

Does anyone know anyone other  than Horizon that might carry the KS servo
support.  Horizon is out of them – Jerry green

 

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