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Thread: IBM PC Case Sizes and front panel measurments

  1. #1

    Question IBM PC Case Sizes and front panel measurments

    Right so this is a bit of an oddball request, but I feel like this would be a good place to ask about it.

    I am trying to build a replica case for the IBM XT and AT PC's and I need accurate dimensions of the cases and their front panels so that I can CNC/3D print the covers.

    The reason behind is is pretty simple - these things cost a fortune, and on top of that they are pretty impossible to find where I'm at (Eastern Europe). I'd like to eventually build a sleeper PC in one of these as well, and gutting an original seems like a crime considering their rarity nowadays.

    If anyone can take photos of the cases from the front/back/sides, and measure the dimensions for me I'd be forever grateful!

  2. #2

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    Hopefully bumping isn't an issue, I have gotten images of the IMB XT PC from a user on reddit: https://www.reddit.com/r/retrobattle...sizes/fpqxhk5/

    And I modeled out the front face of it in solidworks:


    Once I am fully done I will post the 3D files here and everywhere where I can

    If someone could still measure an AT for me that would be wonderful!

  3. #3

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    Very nice work if I do say so myself.

  4. #4

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    Thank you!

    I have contacted a couple of CNC places, but ultimately it would cost way too much to manufacture. So I did the most sensible thing and purchased a 3d printer - I will be making this! I'll post updates as I go along.

  5. #5

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    A little update. My 3d printer has arrived, and I have been experimenting with different fillaments, etc. I seem to have nailed down how to print stuff with a material called PETG which is pretty darn durable (very similar to ABS). Due to print volume limitations, I had to split the front face into 3 parts, but I will hide the seams once its all printed and put together with some sanding, primer, putty, and more sanding.

    This is the front face with the drive mockups:



    Once I split it all up this is what it looks like:





    The little IBM XT logo will be the power button. I have also hidden some USB and Headphone jacks on the front of the case behind the floppy disk flap:



    I have to admit, this is pretty fun to me. Can't wait to see how the prints turn out.

  6. #6

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    Quote Originally Posted by Inu11 View Post
    Thank you!

    I have contacted a couple of CNC places, but ultimately it would cost way too much to manufacture. So I did the most sensible thing and purchased a 3d printer - I will be making this! I'll post updates as I go along.
    Which 3D printer did you get? The Z-axis must be able to accommodate the entire length of the panel.

  7. #7
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    Quote Originally Posted by Inu11 View Post
    If someone could still measure an AT for me that would be wonderful!
    Do you still need the measurements? I can see about getting them for you if you do, though I don't want to have to pull the faceplate off.

    Also, that design is pretty awesome. I may need to see if I can get it printed out. A great excuse for me to make a nice sleeper machine.

    IBM 5160 - 360k, 1.44Mb Floppies, NEC V20, 8087-3, 45MB MFM Hard Drive, Vega 7 Graphics, IBM 5154 Monitor running MS-DOS 5.00
    IBM PCJr Model 48360 640kb RAM, NEC V20,, jrIDE Side Cart, 360kb Floppy drives running MS-DOS 5.00
    Evergreen Am5x86-133 64Mb Ram, 8gb HDD, SB16 in a modified ATX case running IBM PC-DOS 7.10

  8. #8
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    Very nice work!
    "Good engineers keep thick authoritative books on their shelf. Not for their own reference, but to throw at people who ask stupid questions; hoping a small fragment of knowledge will osmotically transfer with each cranial impact." - Me

  9. #9

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    Quote Originally Posted by neosunrise View Post
    Which 3D printer did you get? The Z-axis must be able to accommodate the entire length of the panel.
    No worries, I split the model into 3 pieces, and did my research on materials beforehand. I purchased an Ender 3 Pro, and some PC Gray PETG fillament. PETG is great because it is less prone to warping during printing. After dialing in the print profile for the material, and a couple of test prints, I started printing the biggest piece:





    Naturally if you had a bigger printer you could do one big piece all at once - sadly I don't have the resources for something like that, so this will have to do.

    Quote Originally Posted by lutiana View Post
    Do you still need the measurements? I can see about getting them for you if you do, though I don't want to have to pull the faceplate off.

    Also, that design is pretty awesome. I may need to see if I can get it printed out. A great excuse for me to make a nice sleeper machine.
    Yes, I do! It would be greatly appreciated!

    No need to rip anything off, If you could just get all the measurements similar to the ones I received from the user Cheese_is_here on reddit (https://imgur.com/a/48ocdj9) that would be wonderful.

    Once I am done with the entire print, I will post the OBJ files for all this stuff, some tweaks will likely need to be made as I go along.
    Last edited by Inu11; May 20th, 2020 at 01:28 PM.

  10. #10
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    Quote Originally Posted by Inu11 View Post

    Yes, I do! It would be greatly appreciated!

    No need to rip anything off, If you could just get all the measurements similar to the ones I received from the user Cheese_is_here on reddit (https://imgur.com/a/48ocdj9) that would be wonderful.

    Once I am done with the entire print, I will post the OBJ files for all this stuff, some tweaks will likely need to be made as I go along.
    Ok, I'll see about measuring and what not this week and shoot them over to you in a PM.

    IBM 5160 - 360k, 1.44Mb Floppies, NEC V20, 8087-3, 45MB MFM Hard Drive, Vega 7 Graphics, IBM 5154 Monitor running MS-DOS 5.00
    IBM PCJr Model 48360 640kb RAM, NEC V20,, jrIDE Side Cart, 360kb Floppy drives running MS-DOS 5.00
    Evergreen Am5x86-133 64Mb Ram, 8gb HDD, SB16 in a modified ATX case running IBM PC-DOS 7.10

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