[Clas12_rich] CMM for measuring RICH mirrors during week of 6/13/2016

[Marco Mirazita]

Here they are, ler me know if you have any problem.
Marco


Il 2016-06-09 16:15 James Dahlberg ha scritto:
> Step files would be good.
> Jim
> On 6/9/2016 9:03 AM, Marco Mirazita wrote:
>> Dear Jim,
>> thank you very much for your availability.
>> Besides the radius, we would like to survey the contour of the mirrors 
>> and verify that it is in agreement with our 3D model.
>> We can provide step files of each mirror.
>> Since we have a clearance between 2 mirrors of 3 mm, the accuracy of 
>> the measurements should be something of the order of half mm or so, 
>> definitely not bigger than 1 mm.
>> I attached a photo of one of the mirrors.
>> You will probably need to use some tool to hold the mirrors on the 
>> machine, since they don't have any support on the back.
>> Best regards,
>> Marco
>> 
>> 
>> 
>> Il 2016-06-08 17:39 James Dahlberg ha scritto:
>>> Looks like the 16th would be fine. Sounds like you would really like
>>> for the DSG to perform these measurements.  After everything is set 
>>> up
>>> and calibrated, a person could be trained fairly quickly to operate
>>> the CMM arm and take the measurements.  One of our guys would have to
>>> calibrate and run the software.  With our ~ 30um CMM, they would be
>>> measured in one setup.  What accuracy do you need and is it just the
>>> radius you need or a detailed profile.  Also, just to be sure, the
>>> surface can be touched with a probe, correct?
>>> Jim
>>> 
>>> On 6/8/2016 8:40 AM, Tyler Lemon wrote:
>>>> Dear Chris and Jim,
>>>> 
>>>> Would the 60 um CMM be available for measuring the RICH mirrors some 
>>>> time Tuesday June 14 through Friday June 17?
>>>> 
>>>> As mentioned in my previous email on 5/25, there would be four, 
>>>> square spherical-mirror segments with the largest being about 840mm 
>>>> by 530mm with a radius of curvature of 2.71 meters.
>>>> 
>>>> Would the CMM be able to take measurements of the entire mirror 
>>>> segment without having to be reset? Also, who would perform the 
>>>> measurements? Could the DSG use the CMM or would Survey Group have 
>>>> to perform the measurements? Please let us know.
>>>> 
>>>> Best regards,
>>>> Tyler Lemon
>>>> Detector Support Group
>>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Clas12_rich mailing list
>>> Clas12_rich at jlab.org
>>> https://mailman.jlab.org/mailman/listinfo/clas12_rich
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