vapid cutlery posted:

you might think we're larping but we're actually making the next dragon age

Jonny 290 posted:

remember those inhuman weld photos i posted last week

guy did a followup.

"i'm blind in one eye and shake like a leaf. "

http://oppositelock.jalopnik.com/a-steady-hand-and-a-good-eye-990215275

really, really good article if you are into any sort of mechanical work

gadgethugs posted:

Learning about electronics is fun.

Little things like common ground for everything. And that backpower is a real thing you need to account for in your designs. I'm amazed I didn't let any magic smoke out yet.

I've also decided that since I have all this solar poo poo I'm going to run our internet connection and bedroom electronics with it starting in the fall.

kwinkles posted:

pinball machines are like a giant mess of relays and solenoids

WorkingPeer posted:

i don't actually want to integrate the full arduino into the final device, though.

Sagebrush posted:

re: re: arduino

WorkingPeer posted:

i really want to be cool and awesome and etch my own pcb and surface mount everything cause i deserve the best techmology has to offer.

i had the idea of adding an rfid reader and labelling my sealed food with rfid stickers so you could just tap the sticker on the machine and it would set itself to the right temperature.

one can dream...

ol qwerty bastard posted:

yessssssss

ol qwerty bastard posted:

e:

ol qwerty bastard posted:

i went back to my cloud whatever simulator thing and rewrote it using actual navier-stokes this time
now it gets turbulent flow (that currently builds up and makes it go all hosed eventually because i haven't written any sort of proper planet-spin-is-imparting-momentum-to-atmosphere stuff, i'm just naively adding some constant to the x-component of the vector so it goes out of control, but for now it looks pretty cool and that's what i was trying to accomplish)

Bloody posted:

cistps: near-final thesis draft submitted to advisors

Baboon Nigga posted:

Sagebrush posted:

holy poo poo

https://www.youtube.com/watch?v=Oie1ZXWceqM

ol qwerty bastard posted:

NICE!!!

Silver Alicorn posted:

you can also use methane as a lifting gas

01011001 posted:

added remote controls for limited turning/stopping and bumper-switches for stopping at obstacles/detecting that it's beaching on land/water. some fixed paint on the front and we're in business, more videos on the way

madeupfred posted:

it was a perforated box that you could turn into a breadboard that was full up with electric bits the included book explained

Dr. Honked posted:

555 chip

duTrieux. posted:

i honestly think that this is the sort of tone in which most casual textbooks should be written.

Sagebrush posted:

might haswell cross post the pics here. i finished my bike lights. all told: 100 leds. 1* 2800mW in the head, 2* 2800mW in the tail, 48* 220mW rgb on each side, 1* little status LED. program is mostly just a bunch of state machines and timers, primarily algorithmic stuff like chasers and fades, only a couple of predefined arbitrary sequences. i still have half the program space left, plus more than 2kb of ram and i'm guessing about 2/3 of the clock cycles assuming i didn't do anything stupid, so i can add other features down the line (hall effect sensor, gyroscope, etc)

here are three of the patterns i like best

cga colors


close encounters of the third kind


death star super laser

There Will Be Penalty posted:

(its me)

(im the consumer whore)

Base Emitter posted:

linear algebra best algebra

Dr. Honked posted:

honkwife got me an fpv quadcopter for xmas. despite being an established pilot i managed to stuff it into the wall on xmas day. so the youtubes will be delayed whilst i fixeth it

Sagebrush posted:

well, luckily coding the robot itself is super easy, if you use motor controllers that read normal servo commands it's like

motorleft.write(100);

to make the motor spin. really dumbly simple

GOT VIRUS FROM MP3 posted:

finally completed my thesis project:

echinopsis posted:

that's the tiny breadboard . i ground off some but it's not plated and zero success soldering. i would be content with some form of glue or something that conducted to connect to it and connect across them all too. i'm not against squishing alu foil in there tbh but i know that's terrible

Jonny 290 posted:

Nice, well done!

Speaking of PSUs, reminder that xbox 360 PSUs make GREAT 12/5v supplies. my old ham PSU shat out so i was rootin' around for something, found an old 360 brick. It's got a bunch of wires - all the black ones are ground, all the yellows are +12, and it has a blue and a red wire alongside. The red is +5v *always on*, and the blue is PSU sense - technically it's supposed to see about 3 volts, but if you just connect it to the red wire, the PSU will turn on and spit 12v. Or if you want, have your device close a relay or something to send volts to the blue wire , and you have remote power supply switching.

They're rated at 15 amps at least on the 12v rail, and I think the 5v can do an amp or so. Super handy thing to have around.

Werthog 95 posted:

picked up my game programming book again. gonna make the next star control, all by myself. don't try to stop me

echinopsis posted:

holy gently caress no

i cant sing for poo poo

Sagebrush posted:

current project: fixin the high schoolers' cnc mill. i volunteer for this robotics team and it's getting right up to teh end of the build season so they're all cramming to get the robot finished in time. they crashed the mill so many times the anti-backlash nuts were completely disconnected from their keepers and were just floating around on the leadscrews, and the stepper couplers had come loose also and had almost .030" play in them so when they tried to mill a circle it would come out as a funny lookin oval.

but i got them all dialed in to more like .002 and showed em how to indicate the center of a hole so they could redo the stuff they hosed up on and hopefully the robot will be done on time!