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Y'all Leica Robotic Users,  


Coady2
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I have a pretty simple question:  when doing a "check & adjust" and you come to the "tilting access" deal where you have to sight a target at a steep angle manually - Do you have to use a prism target like is shown in the manual - or can you just use a mark?  This concerns a Leica 1205 robot.  Thanks in advance, Tom

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Coady2
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Sorry! (smh) I meant to say "tilting axis" but on Saturday morning it came out tilting access (whatever that is.)   Speaking of smacking my head- the angle you have to take must be 27° above or below horizontal and on my robot I almost can't get my eye under the eyepiece.

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Jim Frame
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No prism required, but finding a suitable target can be challenging.  I usually do it when I'm working near a tower of some sort.  Set up high!

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Coady2
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Good news!  Set up high?  That's easy for you to say!

 J/k!!!   Couldn't resist that one. Thanks for your help it makes so much easier.

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Just A. Surveyor
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Nope, no prism is require. Church steeples , power plant smoke stacks, maybe a transmission tower.

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Coady2
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Thanks Steven!

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Ramses
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For tilting axis calibration, find a grain of quartz small enough on the ground around you, maybe 6' away from the instrument (that will give you the angle), focus and aim at the center of it. I use the quartz because it is white and gives you a good contrast with the crosshairs and because you can find it almost everywhere, in asphalt, concrete, dirt, etc. In winter I use small ice/ snow crystals as targets with dirt in the background for contrast. I do daily calibrations without the ATR and bi-weekly with ATR. The most important calibration you should do daily if you require a decent accuracy is the l,t compensator calibration. Leica robots can calibrate the compensator independently, unlike the new Geomax robots, so hit the l,t before you start measuring anything.

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Dave Karoly
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I was told to put a quarter on the pavement 6’ in front of the instrument then aim at Washington’s nose but then I read the instructions and it said the target should be at least 50’ away.

This is the Trimble S series, don’t know about Leica instructions.

I usually can find a target on an ordinary utility pole up high enough.

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squowse
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The reason for choosing a target far away is to reduce the effect of centring error (I think). I use a (sharp) pencil cross on a bridge bank seat (abutment) and set up at the bottom of the embankment. Can just get the 27 degrees of inclination required but its very hard to sight without a diagonal eyepiece, especially if you go steeper

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