Reply 60 of 73, by des7uk
kaputnik wrote on 2019-02-14, 11:44:The second shield is customized for AT boards in ATX cases. Besides the premade cutout for the AT keyboard connector, there are […]
The second shield is customized for AT boards in ATX cases. Besides the premade cutout for the AT keyboard connector, there are cutout guides for two DB25 and two DB9 ports. There's also a guide for a PS/2 connector of the kind that's mounted in an expansion slot bracket. The connectors seems to have a somewhat standardized form factor. Nice to not have to waste an expansion card slot on that. Had to keep the guides quite narrow to avoid roughness on the front surface, but it's still not too hard to do the cutouts with an X-acto knife or similar.
Otherwise compared to the blank shield, I adjusted/improved the latching mechanism and upped the thickness from 1 to 2 mm to make the construction sturdier, since D-subs and PS/2 connector will be mounted directly on it.
The location of the PS/2 cutout might not be the most aesthetically pleasing. Wanted to keep it as far away from the mobo and anything it could collide with as possible. Tried putting it right above the AT connector first, but after finding an actual PS/2 connector in my stashes, I realized it would never fit there. Didn't want to remove a DB port cutout to make room for it either. Might however make an alternative version with only one DB25 cutout after doing some other stuff I got in mind, if there's interest 😀
The same printing suggestions applies here too, print the shield with the front side up, and let it slowly cool down to room temperature on the print bed before removing it, to minimize warping and thermal contraction. Used 0.15 mm layer thickness. Set infilling to solid. This model did however not need any scaling, dunno why.
Not gonna use this one myself, so I'm especially interested in feedback from actual users here 😀
Attached .stl file ready for slicing/printing, and the original Autodesk Inventor 2018 model for own modifications.
Edit: did a small cosmetic fix, moved the PS2 cutout into line with the upper row of D-sub ones. Updated the Inventor file and added an updated .stl. Left the old .stl since I haven't test printed the new one.
Edit2: Also uploaded a version with a bit higher and thus more flexible edges, that should work better with PLA, or if you generally have problems with edges breaking when installing. See this post.
Edit3: kuenzign added optional gameport and onboard PS/2 port cutout guides to the original design, clicky.
atio1.PNGatio2.PNG
atio3.jpgatio4.jpg
Hi, I wonder if you have the ATIO1 zip file it's the one I Thanks in advance
David