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This section documents the set-up and the operation of the XY stages (one for the ring and the other for the stave) in the QC test box.

Contacts:

• Valentina Cairo (cairo@slac.stanford.edu)
• Sanha Cheong (

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• sanha@slac.stanford.edu)
• Sam Krishnamurthy (skrishnamurt@umass.edu)
• Scott Newbry (newbry@slac

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• .stanford.edu)

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• Zhi Zheng (

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• zzheng@slac.stanford.edu)

Set-up

Overview

Individual Components

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1. Do NOT press the "Set Zero" buttons on the control software. This off-sets the previous settings, and the stages will have to be re-calibratedcalibration might be necessary.
2. Do NOT manually move any of the stages, unless you know what you are doing and it is necessary. Manual, forced movement also off-sets the previous settings, leading to re-calibration.
   These stages are already far from mechanically perfect, and no further damage is to be done.

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The current convention is that the home position of each stage is calibrated as (0, 0) position. If you home-positioned the stage, but the coordinate shown is not (0, 0), re-calibration is required.

Ring Stage

Shows up as `usb0` `FTDI USB to Serial /dev/ttyUSB0` on the `OpenBuilds CONTROL` software

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