Can't help you with better drawings, but I can recommend 3D-printing a small piece with the holes at the planned locations to verify the fit before sending off the board for production. I've used this technique myself a couple of times. søndag den 5. november 2023 kl. 16.12.59 UTC+1 skrev Dekatron42:
> Have you asked Dieter if he has a better scan that he can share? > > /Martin > > On Sunday, 5 November 2023 at 05:30:53 UTC+1 Richard Scales wrote: > >> Thank you Benoit but I need actual data to make a footprint to use in PCB >> design application. >> >> I think I'm mostly there but was really seeking a better picture so I can >> confirm the accuracy of the supplied numbers and to which pins they apply - >> some of the ones buried in the centre of the display are not so clearly >> linked to the numbers at the side. >> - Richard >> >> >> On Saturday, 4 November 2023 at 14:37:27 UTC Benoit Tourret wrote: >> >>> try to find 0.5 mm inner diameter pipe, 10cm long, fit all the pins, >>> pour some silicone, you should have a good representation of the socket... >>> if you didn't forgot to add some wax or similar to unmold the silicon. >>> the more parallel your pipes will be, the more accurate your print will >>> be. >>> for a good print, the end of the pins is not important, the most >>> important is the place they have at the beginning, the nearest to the >>> display. without sacrifying a display; I don't see any other way to have a >>> good measurement. >>> >>> Le samedi 4 novembre 2023 à 10:04:19 UTC+1, Richard Scales a écrit : >>> >>>> Hello, there are indeed a few the line up - it's the ones that don't >>>> that worry me the most! >>>> - RIchard >>>> >>>> >>>> On Saturday, 4 November 2023 at 08:54:44 UTC Benoit Tourret wrote: >>>> >>>>> Hello Richard, >>>>> >>>>> have a look on the SP-351, >>>>> >>>>> https://www.tube-tester.com/sites/nixie/data/datasheets/SP-351_SP-352-drawing-01.jpg >>>>> [image: SP-351_SP-352-drawing-01.jpg] >>>>> not the same number of digit, but some of the pins should be >>>>> identical... >>>>> On my SP-356, there is 0 aligned pins on a diagonal way. only in >>>>> horizontal. >>>>> >>>>> Le samedi 4 novembre 2023 à 07:31:29 UTC+1, Richard Scales a écrit : >>>>> >>>>>> I used to so that but it relies on all the pins being straight and >>>>>> for this particular display - there are 30+ pins in a very small space - >>>>>> the more accurate the better - especially when it finally comes to >>>>>> plugging >>>>>> the things in! >>>>>> [image: TTPicture.JPG][image: PPpicture.JPG] >>>>>> >>>>>> Perhaps the differences are so subtle it's not worth worrying about. >>>>>> It's like staring at constellations! This group on the left seems a >>>>>> little >>>>>> out of alignment when compared with the image from Sperry, it's >>>>>> counterpart >>>>>> in the image for the character on the right looks more like my chart - >>>>>> yet >>>>>> - from the data I have logged - the chart shows similar groupings for >>>>>> left >>>>>> and right - is their image wrong ? is their data wrong? >>>>>> >>>>>> [image: DDpicture.JPG] >>>>>> >>>>>> When daylight comes I'll get eyes on the physical display though I >>>>>> fear at my age - that may be the least helpful method! >>>>>> >>>>>> - Richard >>>>>> >>>>>> On Saturday, 4 November 2023 at 06:09:25 UTC Audrey wrote: >>>>>> >>>>>>> You could scan the bottom of one using a scanner and convert to >>>>>>> inches/mm using the DPI. >>>>>>> >>>>>>> On Sat, Nov 4, 2023, 2:04 AM Richard Scales <[email protected]> >>>>>>> wrote: >>>>>>> >>>>>>>> I'm looking for any details of the pinout of the Sperry / Beckman >>>>>>>> SP-252 Multi Segment display which are any better than the one that I >>>>>>>> found >>>>>>>> over at tube-tester.com: >>>>>>>> https://tube-tester.com/sites/nixie/data/SP-252/sp-252.htm >>>>>>>> >>>>>>>> I'm making a footprint and need to get the pin positions as >>>>>>>> accurate as possible. My usual process for this is to copy the pin >>>>>>>> positions into a spreadsheet and make a scattergram which should >>>>>>>> represent >>>>>>>> the pin positions. >>>>>>>> >>>>>>>> This allows me to spot any obvious blunders. It's just that the >>>>>>>> image I have is not that clear and there is some information missing >>>>>>>> (IMHO) >>>>>>>> so if anyone can point me to anything better I would be most grateful. >>>>>>>> >>>>>>>> I could not find it in the Sperry Information Systems catalogue for >>>>>>>> which I already have a PDF. >>>>>>>> - Richard >>>>>>>> >>>>>>>> -- >>>>>>>> You received this message because you are subscribed to the Google >>>>>>>> Groups "neonixie-l" group. >>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>> send an email to [email protected]. >>>>>>>> To view this discussion on the web, visit >>>>>>>> https://groups.google.com/d/msgid/neonixie-l/171bf56b-7195-454e-8ebb-2ef9aceb2e78n%40googlegroups.com >>>>>>>> >>>>>>>> <https://groups.google.com/d/msgid/neonixie-l/171bf56b-7195-454e-8ebb-2ef9aceb2e78n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>>> . >>>>>>>> >>>>>>> -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. 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