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Bug #4475

closed

various j1230 problem with bad stage movement and defocus setting

Added by Anchi Cheng about 8 years ago. Updated almost 7 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Anchi Cheng
Category:
-
Target version:
Appion - Appion/Leginon 3.3
Start date:
09/28/2016
Due date:
% Done:

0%

Estimated time:
Affected Version:
Appion/Leginon 3.2
Show in known bugs:
No
Workaround:

Description

z direction always needs backlash correction. Otherwise it can be off by up to 2 um.

Alpha tilt sometimes not return to zero after tilting. Need to add a force tilt.

Also large objective lens change causes bad defocus setting.

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 #1

Updated by Anchi Cheng about 8 years ago

  • Subject changed from j1230 bad stage movement to various j1230 problem with bad stage movement and defocus setting
  • Description updated (diff)

commit proven fixes.

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 #2

Updated by Anchi Cheng almost 7 years ago

  • Status changed from Assigned to Closed
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