Michael Gilligan | 03/09/2023 13:06:01 |
![]() 23121 forum posts 1360 photos | Fans of Dan Gelbart might recognise the principle of this one: https://www.huberlab.org/resources/optical-alignment-device/ MichaelG. |
old mart | 04/09/2023 19:59:39 |
4655 forum posts 304 photos | Clever design, I did not understand how the laser image presented a circular image and whether that image diameter reduced to a point when the axes were exactly at right angles in all planes. Particularly how the persistance of the projected beam worked. Normally such a beam would always only show as a spot, not a circle. |
Michael Gilligan | 04/09/2023 20:21:55 |
![]() 23121 forum posts 1360 photos | There is more detail about it here:**LINK** https://opg.optica.org/boe/fulltext.cfm?uri=boe-9-8-3624&id=395204 MichaelG. |
Ian P | 04/09/2023 21:37:15 |
![]() 2747 forum posts 123 photos | Unless I have misunderstood the details in the abstract and the fuller description in the second link, I dont think this device will be any use for centering a workpiece. Its purpose seems to be to (only) ensure that the window is perfectly perpendicular to the microscope optical axis. |
Michael Gilligan | 05/09/2023 04:07:44 |
![]() 23121 forum posts 1360 photos | You have not misunderstood, Ian … this the optical equivalent of ‘tramming’ MichaelG. Edited By Michael Gilligan on 05/09/2023 04:16:27 |
Ian P | 05/09/2023 13:40:28 |
![]() 2747 forum posts 123 photos | Posted by Michael Gilligan on 05/09/2023 04:07:44:
You have not misunderstood, Ian … this the optical equivalent of ‘tramming’ MichaelG. Edited By Michael Gilligan on 05/09/2023 04:16:27 I totally agree Michael. However the device I saw in a Dan Gelbart video was for centering work for drilling/milling not tramming. I will have to read the paper again but I did not get the impression that the accuracy of the optical device would be as good as using conventional (Spindle mounted DTI swinging over the table) but for its medical purpose it makse sense. Ian P
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Ian P | 05/09/2023 13:40:29 |
![]() 2747 forum posts 123 photos | Posted by Michael Gilligan on 05/09/2023 04:07:44:
You have not misunderstood, Ian … this the optical equivalent of ‘tramming’ MichaelG. Edited By Michael Gilligan on 05/09/2023 04:16:27 I totally agree Michael. However the device I saw in a Dan Gelbart video was for centering work for drilling/milling not tramming. I will have to read the paper again but I did not get the impression that the accuracy of the optical device would be as good as using conventional (Spindle mounted DTI swinging over the table) but for its medical purpose it makse sense. Ian P
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Michael Gilligan | 05/09/2023 14:14:53 |
![]() 23121 forum posts 1360 photos | Posted by Ian P on 05/09/2023 13:40:28: . […] However the device I saw in a Dan Gelbart video was for centering work for drilling/milling not tramming. […] Ian P
. Sorry if the comment in my opening post was misleading, Ian What I meant was that it was an evolution from Dan Gelbart’s device. MichaelG.
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