Re: [ap-gto] 1100 GTO Bubble level.


Oct 24, 2014

 


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#45560 Oct 24, 2014

Steve,  Amazingly, the bubble level on my new Mach1 is dead accurate.. Thank you A-P.. But I never use it because it.s placed so you have to be up high enough to look down on it . and with my tripod, when I.m down low adjusting leg height . I can.t see the built-in level.  And since almost none of the bubble levels in my other brands of mounts are level . I.ve just learned to use a good quality construction level.. I particularly like the more expensive German Stabila levels because I can place the level up on the top of the tripod . and still easily see the bubble from down where I am adjusting the tripod legs.. They have unusually large side cut-outs for better visibility.. If you have a pier, I guess this isn.t so much of a problem.. But with tripods, I find the easy to read from low positions Stabila levels to be great.  I use one of Stabila.s Pocket levels (about 2. long) to level the mount for Park-4 ref position.. This level is short enough to fit on the counterweight shaft . either above or below the weights.. And it has a groove down the center which centers it over the CW shaft.. This level .lives. with the mount.  And for quick setups in the field when I can.t see Polaris (during the day for example with solar observing), I use an electronic Stabila level to set my PA altitude.. For example, where I live, my Latitude is 32. 44. 11... I convert that to 32.7. (because the level reads in degrees and tenths), level the tripod and mount and point the mount to True North, place the level on the mount.s saddle and adjust the altitude knob until the level reads 32.7... That turns out to be amazingly accurate.  Woody  To date I have been using the bubble level which is permanently attached to the mount. Out of curiosity I placed a level across the base of the mount on the north side perpendicular to north and it showed the mount as being out of level. The base plate is also slightly out of level parallel to north. I then checked with two other levels with the same results.  Should I not use the level attached to the mount? Azimuth adjustments seem to affect altitude. What procedure do others use?  Steve  



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#45562 Oct 24, 2014

You can use an i-Phone with level and north Apps to line up the mount. Works quite well for daytime setups.



Rolando

-----Original Message-----From: 'Woody Schlom' woody@... [ap-gto] ap-gto@yahoogroups.com>To: ap-gto ap-gto@yahoogroups.com>Sent: Fri, Oct 24, 2014 7:26 pmSubject: RE: [ap-gto] 1100 GTO Bubble level.



Steve, Amazingly, the bubble level on my new Mach1 is dead accurate.  Thank you A-P.  But I never use it because it.s placed so you have to be up high enough to look down on it . and with my tripod, when I.m down low adjusting leg height . I can.t see the built-in level. And since almost none of the bubble levels in my other brands of mounts are level . I.ve just learned to use a good quality construction level.  I particularly like the more expensive German Stabila levels because I can place the level up on the top of the tripod . and still easily see the bubble from down where I am adjusting the tripod legs.  They have unusually large side cut-outs for better visibility.  If you have a pier, I guess this isn.t so much of a problem.  But with tripods, I find the easy to read from low positions Stabila levels to be great. I use one of Stabila.s Pocket levels (about 2. long) to level the mount for Park-4 ref position.  This level is short enough to fit on the counterweight shaft . either above or below the weights.  And it has a groove down the center which centers it over the CW shaft.  This level .lives. with the mount. And for quick setups in the field when I can.t see Polaris (during the day for example with solar observing), I use an electronic Stabila level to set my PA altitude.  For example, where I live, my Latitude is 32. 44. 11..  I convert that to 32.7. (because the level reads in degrees and tenths), level the tripod and mount and point the mount to True North, place the level on the mount.s saddle and adjust the altitude knob until the level reads 32.7..  That turns out to be amazingly accurate. Woody To date I have been using the bubble level which is permanently attached to the mount. Out of curiosity I placed a level across the base of the mount on the north side perpendicular to north and it showed the mount as being out of level. The base plate is also slightly out of level parallel to north. I then checked with two other levels with the same results. Should I not use the level attached to the mount? Azimuth adjustments seem to affect altitude. What procedure do others use? Steve 


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