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My recent staff turn renewed my frustration with measuring distances along the length of the staff.

Today I made this.  The caliper piece came off of a theta adjuster on an XY table for silicon wafers (probe station). 

I 3D printed an end piece and then, using a brass washer, reamed out the precision face.  I had to do some lapping on a diamond plate to get the faces to align properly.  I am within 10 microns I think.

Until I turn my next staff, I will not know how well this works.

2022-08-25 15_39_59-20220825_153357.jpg ‎- Photos.png

2022-08-25 15_40_14-20220825_153427.jpg ‎- Photos.png

2022-08-25 15_40_29-20220825_153458.jpg ‎- Photos.png

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