Over time, the baseplates wore down from friction with the glass coverslips we used for glass-glass tests. Scott and Matt worked with the Machine Shop to update the base plates in February 2021. Neha re-measured them with the CMM in early March 2021. Scott's PDF with the drawings of the updated base plates is also attached here. Scott and Matt noted that the 0.107 mm (6 mil) difference in the distance between the corner in the drawing and the measurements for quads is within tolerance for the pin + edge location.
Hi All,
Today I ran some CMM measurements on the quad and triplet pick up plates to verify corner positions, distances, and angles. I've attached two tables below comparing the distance between different corners on the machine drawings (thank you Scott!), the pick up plates, and these clear screen protectors that Hannah and Matt used double sided tape to place glass slides on (named clear screen cover). The lettering scheme I followed was provided by Hannah and I've put a little picture on each slide illustrating it.
Additionally I found the x,y positions of the pocket corners on each plate, as well as the distance between them and the center of the dowel pin (which I used as the origin). I've labelled those below on the machine drawings Scott provided.
Please do let me know if anything is missing/unclear!
Thanks!
Sincerely,
Neha Singh
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Oct 23 Measurements of the quad pick-up plate, compared to machine drawings. Measured values are within tolerances specified in the drawing.
Oct 29 Measurements of the triplet pick-up plate, compared to machine drawings
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