foone
@Foone 5 months, 2 weeks ago 77 views

I think I've permanently confused KiCAD
it's reminding me that I need to connect this capacitor to Nothing

attach this end to ground, this end to +5v, and this end to THE VOID
I accidentally made all the capacitors gigantic and they won't fit anymore

halp
gonna design an ISA card using some of these

it's gonna be tricky to fit in the case
that's from this video:
https://t.co/FyMofzOFEX
those kicad motherfuckers
they have an ISA footprint but it doesn't show up when you search for "ISA" because they called it BUS_AT despite it being clearly called "ISA" since THE LATE 80s
and even worse, it's actually the AT bus

The full AT bus, the 16bit extension to the 8bit PC/XT bus!
but surely they included the PC/XT bus as well, since it's just a minor variation of the AT bus, right? You'd just need to make the same design but slightly smaller?
1. no, because
2. fuck you
gotta do it myself like some kind of caveman
ok, finally I can update the ratsnest and fix my board and OH GOD WHAT HAPPENED
apparently I have now fixed the issue of connecting to the void at the expense of every single item on the board deciding to roll scatter dice
I thought I'd quickly google "what size are ISA mounting bracket holes?" and it quickly led me to JOGGLE TABS by GOMPF BRACKETS and I think I wandered into the part of the internet that's generated by markov chains
FUCKING SHIP IT
hang on I'm doing an update of all my symbols & footprints & 3d models.
this will fix and/or cause all my problems
does all software have to constantly gaslight me?
look at this.
it's the wrong 3D library, as that's just the footprint not the socket. I don't even know if here's a socket, so I'd like to look.
See the 3D model path? it's in Package_LCC.3dshapes
so I hit BROWSE and scroll to package_...

there's no LCC
there's no LCC and yet it apparently is working?
even though it doesn't exist?
HOW? WHY?
(my guess is that either it's being cached and doesn't exist anymore (or has been moved), or it's aliased from somewhere else, or autogenerated from the footprint, or any number of things)
but the end user experience is that it makes you think you're going fucking insane
amusingly if I google for "PLCC-68_THT-Socket.wrl" there's two results:
1. the source for kicad which points at this non-existent file
2. @TubeTimeUS's PlaidBib project which points at "Housings_LCC.3dshapes/PLCC-68_THT-Socket.wrl", which is a slightly different path!
which also doesn't exist.
so I'm guessing the answer is that there is no WRL file for this part and this is just a placeholder for in case anyone ever makes one, and it's instead just getting autogenerated from the footprint
computers are one of those fun subjects where the more you learn about them, the more you hate them
oh no

updating the libraries brought back the void
https://t.co/Sunhq9SZuH
FINE
YOU WANT ME TO CONNECT TO THE VOID?
I'LL DO IT. BUT I'LL DO IT RIGHT.
THERE.
We've got out power connectors.
5 volts
ground
and the fucking VOID
pins 11, 10, 9, and 7?

connect them to the void.
mmm, tasty.
https://t.co/6pHY6xZkCZ
fun fact: I couldn't remember how I'd phrased that one and searching "the void" didn't find it, so I had to google "the void drinks machine" and it found a couple reddit posts that screenshotted the tweet and cropped off my name, so I then could search for "diet coke" and find it
less fun fact: that shitpost is probably the most popular thing I ever ever done, and it's all because of people reposting the screenshot without credit!
I seriously only opened up this PCB editor so I could do a shitpost followup to something I said last night and now it's 2 hours later and I'm mostly done setting up a 4-drive floppy controller
why
people like to complain about ADHD keeping you from getting anything done, or only letting you concentrate on "pointless" things like games and TV shows, and that's definitely a big part of it
but the other side is that sometimes you CAN CONCENTRATE and you can do it VERY WELL and FOR A LONG TIME but you have zero ability to control what you're concentrating on
I wanted to wake up and make a quick joke on twitter and then go get some coffee and start the day and NOPE
TWO HOURS LATER I'M DESIGNING A FLOPPY DISK CONTROLLER
JLCPCB here I come
OK I know that one won't work. There's too many overlapping parts.

I fixed it now. This'll work.
I did this one manually but I have seriously considered writing a plugin for kicad that goes through every part and picks a random orientation out of 360 degrees and applies it
and by "manually" I mean I clicked each part and adjusted the properties.
Obviously I let a computer generate the randomness, I'm not a barbarian.
this may be a tad hard to route, though
I'm pretty sure if I pointed an autorouter at this my computer would collapse into a black hole
especially since I have all these pads I need to connect to THE VOID
done routing the ground.
I decided not to use a ground plane fill. it's too easy.
I'm just gonna do point-to-point traces for all the ground points
I may need more than 2 layers
hey what if I just give every major component their own layer?
kicad only supports up to 32 layers, but that should be enough

More from foone

More from Science

"NO LONGER BEST IN THE WORLD"
UNEP's new Human Development Index includes a new (separate) index: Planetary pressures-adjusted HDI (PHDI). News in Norway is that its position drops from #1 to #16 because of this, while Ireland rises from #2 to #1.
Why?

https://t.co/aVraIEzRfh


Check out Norway's 'Domestic Material Consumption'. Fossil fuels are no different here to Ireland's. What's different is this huge 'non-metallic minerals' category.
(Note also the jump in 1998, suggesting data problems.)
https://t.co/5QvzONbqmN


In Norway's case, it looks like the apparent consumption equation (production+imports-exports) for non-metal minerals is dominated by production: extraction of material in Norway.
https://t.co/5QvzONbqmN


And here we see that this production of non-metallic minerals is sand, gravel and crushed rock for construction. So it's about Norway's geology.
https://t.co/y6rqWmFVWc


Norway drops 15 places on the PHDI list not because of its CO₂ emissions (fairly high at 41st highest in the world per capita), but because of its geology, because it shifts a lot of rock whenever it builds anything.

You May Also Like

1/ If you want to find out what is in the Y Combinator S19 batch, @Golden has compiled (using public signals) a near complete list of truly exciting companies.

If we are missing any or you want to help improve the data you can edit the topics.

https://t.co/9QGLiEPsn3


2/ Here is the direct public query if you want to check it out:

https://t.co/aqb8qYN4y9

[Note: no off the record cos are in here unless they have been publicly launched already]

3/ Also, here are 2,000+ other YC companies we have generated information

4/ We used the Golden Research Engine to generate this information, which you can find out more about here and ping me if you want a