Sphere478 wrote on 2022-03-31, 07:30:
I don’t have any socket 3 hardware to test this on, and am kinda new to pcb design but I’m willing to try and help if I can.
Can you guys describe in detail tweaks and mods that can be done to this socket and make some diagrams and schematics of what is needed?
Sphere478 wrote on 2022-06-07, 08:27:
Anyone able to confirm this pin spacing with a caliper? […]
Anyone able to confirm this pin spacing with a caliper?
Here is a socket 3 footprint I threw together based on the Pentium overdrive datasheet.
I need beta testers btw.
Need active feedback and engagement. or this probably won't get past alpha/beta
Maybe just prefix this with the fact that you are an absolute beginner and have no idea yet what you are doing, nor have any of the parts available?
How about being honest with yourself?
I've looked over your various projects, the Socket 5/7 tweaker, this tweaker and the "Socket 5/7/SS7 (Voltage Interposer)" (What I can only call an absolute nightmare)
And throughout this it is becoming abundantly obvious to me that you are going about this without having the faintest idea of how to even go about building the most basic circuit design elements in an EDA software.
Why do I bring this up?
Because throughout this you've been active on TheRetroWeb Discord (formerly Ultimate Retro) asking for help and suggestions, then receiving said input and ignoring it, telling us that you know better. While just generally being impossibly stubborn and dismissively insinuating that we're just trying to stop you rather than help you.
So let's do this once again. With the latest creation that gives me nightmares.
- The pin spacing is 5.08mm instead it should be 2.54mm
- The pad hole sizing is wrong, you want the mid point of 0.43-0.51 mm which is the pin thickness margin on Socket 2,3,4,5 and 7. ( 0.47mm pin diameter with a +/- 0.04 machining tolerance)
- The pad numbering is completely horrifying, no sane designer would make every pad the same Reference ID. Use the X,Y array creation feature to build the pads with the right spacing and numbering.
Which tells me you do not even know how to use the KiCad array functions.
Having everything be the same Pin will violate all Design Rule Checker (DRC) and Electrical Rule Checker (ERC) rules and allow connecting any track to any pad or absolutely anything else.
- All of the physical dimensions to create a CPU/Socket footprint, the pins to create a symbol is clearly documented in the datasheet that you have actually attached as part of the ZIP upload attachment.
Socket 5/7/SS7 (Voltage Interposer) Tweaker. (Alpha)
All those little arrows are faults, due to no reference schematic or annotation of unique reference ID's for parts.
- You've built that whole thing without even a schematic!!! Frankly I don't know wether to be impressed, horrified, or everything at once.
- There are no net-rules, no schematic, just the stuff of nightmares
- DRC checking results in a Krakatoa explosion of errors
- Components have schematic values as reference designators (ref designators should be unique)
- The whole board is completely un-manufacturable without starting from scratch.
I get that you're a complete novice beginner, though what hurts me the most is to see that all of the advice, the tutorials, the countless resources several of us on the UR/TRW discord have sent and linked you have just gone ignored/unused.
It's been months now, I've taught students at high-school level to use KiCAD more proficiently in just a few short weeks. But you keep pressing on without familiarizing yourself with the basics.
I'm not angry at you, I'm incredibly confused, disappointed and concerned, and It was time that I make some more aware than just technical staff on the UltimateRetro/TRW discord.
At this point I no longer can distinguish if you're just incredibly stubborn to a fault and hit the ceiling of the Dunning Kruger curve or have converted to just being a con-artist?
Pitching things to users here who don't know better to see that what you are making is really really awfully flawed and giving them false hopes and ideas about your abilities with the hype you build only for them to ultimately be let down.
Please take a step back, acknowledge the limits of your abilities and improve your understanding of the fundamentals and tooling before you press on.
I can again as before recommend joining this free course so as to get acquainted with the concepts:
https://www.udemy.com/course/learn-kicad-prin … t-board-design/
Or one of these if you later wish to learn about advanced topics
And lastly here's a Socket 2,3,5,7, everything footprint that I have created, just use this if you absolutely must.
https://github.com/rigred/kicad-retro/tree/ma … ket%202%2C3%2C6
This is for motherboard use, so the hole sizing would just have to be closed down from 0.762mm to 0.52mm.
Edit one pad, then right click copy it to defaults and select to push defaults to all pads.
Sorry for this, but I felt it was necessary and more than overdue.