Re run of fine levelling procedure - PowerPoint PPT Presentation

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Re run of fine levelling procedure

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Remove half the drift i.e. 1.5 divisions (using two footscrews) Position d ... (using one footscrew) The bubble is now 'FROZEN' in 1.5 divisions to the left ... – PowerPoint PPT presentation

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Title: Re run of fine levelling procedure


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Re - run of fine levelling procedure
Bubble follows LEFT THUMB
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Bubble follows LEFT THUMB
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The bubble is now FROZEN in 1.5 divisions to
the left
and should stay this much out wherever it is
rotated to.
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SCREWS
LEGS
SCREWS
HEAD
and Optical Plummet
and Pond Bubble
and Plate Bubble
and Optical Plummet
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Target
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