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<blockquote data-quote="Vipersan" data-source="post: 741773" data-attributes="member: 325666">Hi friends..I've had to put down my thinking in diagramatic formThe diagram is somewhat exaggerated ...The Variation or error in tracking from 1 West ...top of the arc ..Which was set correctly for my location 53.5..appears to be about 1 degree ..over 30 degrees of arc ..So I'm summising that the polar offset will require modifying by about 1 degree ? to correct this.Please feel free to correct my thinking if you think I'm 'barking'.....err up the wrong tree;)rgds allVS..Hmm just rechecking the numbers now I'm home from work ..And that the error seems to correct itself the further down the arc I get ..ie ..40 deg ++..it makes my diagram somewhat redundant and a little odd ..doh!..perhaps the odd discrepency at the lower end of the arc is due to errors in the polar mounts construction ..If so I'll live with it ...Perfect at the top of the arc ..1 degree out around 30 East and 30 West ..almost perfect again around 40 West ..and 40 East ....(EXP Am1 declination taken into account)Nothings perfect ...;)</blockquote>

[QUOTE="Vipersan, post: 741773, member: 325666"] Hi friends ..I've had to put down my thinking in diagramatic form The diagram is somewhat exaggerated ... The Variation or error in tracking from 1 West ... top of the arc .. Which was set correctly for my location 53.5 ..appears to be about 1 degree ..over 30 degrees of arc .. So I'm summising that the polar offset will require modifying by about 1 degree ? to correct this. Please feel free to correct my thinking if you think I'm 'barking'.....err up the wrong tree ;) rgds all VS ..Hmm just rechecking the numbers now I'm home from work .. And that the error seems to correct itself the further down the arc I get .. ie ..40 deg ++ ..it makes my diagram somewhat redundant and a little odd .. doh! ..perhaps the odd discrepency at the lower end of the arc is due to errors in the polar mounts construction ..If so I'll live with it ... Perfect at the top of the arc .. 1 degree out around 30 East and 30 West .. almost perfect again around 40 West ..and 40 East ....(EXP Am1 declination taken into account) Nothings perfect ... ;) [/QUOTE]

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