Post your idiot spare time projects. i'm the subtle buttocks

The Something Awful Forums > Discussion > Serious Hardware/Software Crap > YOSPOS > Post your idiot spare time projects. i'm the subtle buttocks

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echinopsis: Apr 13, 2004; by Fluffdaddy

omg yues

but that makes me realise the scope of what i think i am trying to achieve

# ? May 1, 2014 09:48

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# ? Apr 27, 2024 21:18

echinopsis: Apr 13, 2004; by Fluffdaddy

https://www.flickr.com/photos/funnypolynomial/sets/72157627738613990/

woah hily fuckiny suck i think this is a bit beyond my pay grade

# ? May 1, 2014 09:49

overeager overeater: Oct 16, 2011; "The cosmonauts were transfixed with wonderment as the sun set - over the Earth - there lucklessly, untethered Comrade Todd on fire."

echinopsis posted:

i think this is a bit beyond my pay grade

the circuit itself, or the case?

# ? May 1, 2014 13:55

Bloody: Mar 3, 2013

echinopsis posted:

https://www.flickr.com/photos/funnypolynomial/sets/72157627738613990/

woah hily fuckiny suck i think this is a bit beyond my pay grade

this webpage crashed chrome. thanks chrome.

# ? May 1, 2014 16:26

echinopsis: Apr 13, 2004; by Fluffdaddy

Vlad the Retailer posted:

the circuit itself, or the case?

the entire scope. coding it, the circuit, maybe the case

a run before i can walk scenario

# ? May 1, 2014 20:09

N.Z.'s Champion: Jun 8, 2003; Yam Slacker

i'm making an sa forums client (web tech + phonegap) and I wanted to use swiping to move between forums > forum > thread. Unfortunately there's a pretty significant android bug with scrolling and swiping (it can't do both) so I've been making a javascript library to work around that. also the idea is to have live animation during the swipe because most other approaches (like jquery mobile) just have an uninterruptible animation that transitions the whole page.

http://holloway.github.io/swiper-do-swipe/ (works fastest in webkit, but it does support firefoxOs)

bugs: you can't scroll vertically right now but i'll fix that soon

# ? May 1, 2014 22:31

overeager overeater: Oct 16, 2011; "The cosmonauts were transfixed with wonderment as the sun set - over the Earth - there lucklessly, untethered Comrade Todd on fire."

2048 for the arduino (aka the perfect HN headline)

# ? May 2, 2014 02:29

Sagebrush: Feb 26, 2012

Vlad the Retailer posted:

2048 for the arduino (aka the perfect HN headline)

more like the perfect hack-a-day honeypot

christ does the concept of the arduino ever get those commenters all furioused up

# ? May 2, 2014 03:04

GameCube: Nov 21, 2006

i feel really bad for the guys who made threes

# ? May 2, 2014 03:19

pointers: Sep 4, 2008

Werthog 95 posted:

i feel really bad for the guys who made threes

# ? May 2, 2014 03:51

Doc Block: Apr 15, 2003; Fun Shoe

Werthog 95 posted:

i feel really bad for the guys who made threes

# ? May 2, 2014 07:35

Breakfast All Day: Oct 21, 2004

i remember playing a threes clone on a shareware floppy in like 92

# ? May 2, 2014 08:41

Breakfast All Day: Oct 21, 2004

what im saying is threes eventually leads to time travel

# ? May 2, 2014 08:41

Luigi Thirty: Apr 30, 2006; Emergency confection port.

i bought a breadboard-mountable RCA jack but i haven't gotten around to looking up how to output video and build my own Fairchilde Channel F

# ? May 2, 2014 08:43

echinopsis: Apr 13, 2004; by Fluffdaddy

Werthog 95 posted:

i feel really bad for the guys who made threes

maybe if theyr app had had any kind of efficiency or anything

# ? May 2, 2014 09:41

overeager overeater: Oct 16, 2011; "The cosmonauts were transfixed with wonderment as the sun set - over the Earth - there lucklessly, untethered Comrade Todd on fire."

Luigi Thirty posted:

i bought a breadboard-mountable RCA jack but i haven't gotten around to looking up how to output video and build my own Fairchilde Channel F

for b&w composite video, the hardware side is pretty easy - you only need two outputs, a 470 ohm and a 1kohm resistor

however, you have to generate the signal on the fly, generating horizontal and vertical sync pulses and counting clock cycles

or you can just use the arduino TVout library

# ? May 2, 2014 11:09

ol qwerty bastard: Dec 13, 2005; If you want something done, do it yourself!

okay so my friend claims that she mixed blue and red food colouring, and it turned out green. she asked me why this might be the case

she swears that she did not simply mistake a bottle of yellow food colouring for red, and while i'm p. sure this is still the most probable explanation by far, i will do my due diligence in investigating this mystery of science

the obvious route seems to be: get the transmission spectra of the food colouring dyes, and then get the emission spectrum of the lights she was using (fluorescent i think), and then figure out what sort of colour one would expect to see

so, step 1 is build a spectroscope. my first prototype is just a kludged-together slit->tube->diffraction grating->digital camera, so the spectra i'm getting out of it are pretty rough

here's a spectrum i got from a CFL bulb

i'm going to build a more solid one out of lego that will actually sort of mount to the camera and allow me to precisely control the amount of light getting in and the angle it's at, and then stick it on a tripod or something so that it'll be stable for the relatively long exposures it'll need to do

# ? May 3, 2014 14:33

SEND SPIKE JONEZ: Dec 31, 2006; spike jonez sent

ol qwerty bastard posted:

okay so my friend claims that she mixed blue and red food colouring, and it turned out green. she asked me why this might be the case

she swears that she did not simply mistake a bottle of yellow food colouring for red, and while i'm p. sure this is still the most probable explanation by far, i will do my due diligence in investigating this mystery of science

the obvious route seems to be: get the transmission spectra of the food colouring dyes, and then get the emission spectrum of the lights she was using (fluorescent i think), and then figure out what sort of colour one would expect to see

so, step 1 is build a spectroscope. my first prototype is just a kludged-together slit->tube->diffraction grating->digital camera, so the spectra i'm getting out of it are pretty rough

here's a spectrum i got from a CFL bulb

i'm going to build a more solid one out of lego that will actually sort of mount to the camera and allow me to precisely control the amount of light getting in and the angle it's at, and then stick it on a tripod or something so that it'll be stable for the relatively long exposures it'll need to do

is this the new printer-carry?

SEND SPIKE JONEZ fucked around with this message at 15:11 on May 3, 2014

# ? May 3, 2014 15:03

Bloody: Mar 3, 2013

no, because thats a kickass device

# ? May 3, 2014 15:38

Corla Plankun: May 8, 2007; improve the lives of everyone

the yellow bottle in the 4-pack looks really really red before use

probably just put the wrong cap on it last time

# ? May 3, 2014 16:14

01011001: Dec 26, 2012

Corla Plankun posted:

the yellow bottle in the 4-pack looks really really red before use

probably just put the wrong cap on it last time

yeah. but hey you built a spectroscope anyway which is pretty cool

# ? May 3, 2014 16:21

Sagebrush: Feb 26, 2012

ol qwerty bastard posted:

okay so my friend claims that she mixed blue and red food colouring, and it turned out green. she asked me why this might be the case

she swears that she did not simply mistake a bottle of yellow food colouring for red, and while i'm p. sure this is still the most probable explanation by far, i will do my due diligence in investigating this mystery of science

you should read this first (Feynman)

quote:

The reason why I say I'm "uncultured" or "anti-intellectual" probably goes all the
way back to the time when I was in high school. I was always worried about being
a sissy; I didn't want to be too delicate. To me, no real man ever paid any attention
to poetry and such things. How poetry ever got written--that never struck me! So I
developed a negative attitude toward the guy who studies French literature, or
studies too much music or poetry--all those "fancy" things. I admired better the
steel-worker, the welder, or the machine shop man. I always thought the guy who
worked in the machine shop and could make things, now he was a real guy! That
was my attitude. To be a practical man was, to me, always somehow a positive
virtue, and to be "cultured" or "intellectual" was not. The first was right, of course,
hut the second was crazy.

I still had this feeling when I was doing my graduate study at Princeton, as you'll
see. I used to eat often in a nice little restaurant called Papa's Place. One day while
I was eating there, a painter in his painting clothes came down from an upstairs
room he'd been painting, and sat near me. Somehow we struck up a conversation
and he started talking about how you've got to learn a lot to be in the painting
business. "For example," he said, "in this restaurant, what colors would you use to
paint the walls, if you had the job to do?"

I said I didn't know, and he said, "You have a dark band up to such-and-such a
height, because, you see, people who sit at the tables rub their elbows against the
walls, so you don't want a nice, white wall there. It gets dirty too easily. But above
that, you do want it white to give a feeling of cleanliness to the restaurant."

The guy seemed to know what he was doing, and I was sitting there, hanging on
his words, when he said, "And you also have to know about colors--how to get
different colors when you mix the paint. For example, what colors would you mix
to get yellow?"

I didn't know how to get yellow by mixing paints. If it's light, you mix green and
red, but I knew he was talking paints. So I said, "I don't know how you get yellow
without using yellow."

"Well," he said, "if you mix red and white, you'll get yellow."
"Are you sure you don't mean pink?"

"No," he said, "you'll get yellow"--and I believed that he got yellow, because he
was a professional painter, and I always admired guys like that. But I still
wondered how he did it.

I got an idea. "It must be some kind of chemical change. Were you using some
special kind of pigments that make a chemical change?"

"No," he said, "any old pigments will work. You go down to the five-and-ten and
get some paint--just a regular can of red paint and a regular can of white paint--and
I'll mix 'em, and I'll show how you get yellow."

At this juncture I was thinking, "Something is crazy. I know enough about paints to
know you won't get yellow, but he must know that you do get yellow, and
therefore something interesting happens. I've got to see what it is!"

So I said, "OK, I'll get the paints."

The painter went back upstairs to finish his painting job, and the restaurant owner
came over and said to me, "What's the idea of arguing with that man? The man is a
painter; he's been a painter all his life, and he says he gets yellow. So why argue
with him?"

I felt embarrassed. I didn't know what to say. Finally I said, "All my life, I've been
studying light. And I think that with red and white you can't get yellow--you can
only get pink."

So I went to the five-and-ten and got the paint, and brought it back to the
restaurant. The painter came down from upstairs, and the restaurant owner was
there too. I put the cans of paint on an old chair, and the painter began to mix the
paint. He put a little more red, he put a little more white--it still looked pink to me-
-and he mixed some more. Then he mumbled something like, "I used to have a
little tube of yellow here to sharpen it up a bit--then this'll be yellow."

"Oh!" I said. "Of course! You add yellow, and you can get yellow, but you couldn't
do it without the yellow."

The painter went back upstairs to paint.
The restaurant ownersaid, "That guy has his nerve, arguing with a guy who's
studied light all hislife!"

But that shows you how much I trusted these "real guys." The painter had told me
so much stuff that was reasonable that I was ready to give a certain chance that
there was an odd phenomenon I didn't know. I was expecting pink, but my set of
thoughts were, "The only way to get yellow will be something new and interesting,
and I've got to see this."

I've very often made mistakes in my physics by thinking the theory isn't as good as
it really is, thinking that there are lots of complications that are going to spoil it--an
attitude that anything can happen, in spite of what you're pretty sure should
happen.

# ? May 3, 2014 16:22

Bloody: Mar 3, 2013

Sagebrush posted:

you should read this first (Feynman)

lol what an idiot obvioyusly the painter just nedded fresh red and white paint

# ? May 3, 2014 16:26

01011001: Dec 26, 2012

Sagebrush posted:

you should read this first (Feynman)

owns

# ? May 3, 2014 16:27

Progressive JPEG: Feb 19, 2003

a long time ago i wrote a program to push text (with a rudimentary font/color syntax) to scrolling text led signs

its got stocks and news headlines and charlie chan quotes and whatever else can be scraped and printed to stdout

after about a year at cur job i finally got around to making some scraper scripts for stuff relevant to there, eg build status, any recent pages, current/peak qps for the day, so its now set up and scrolling

anyway thats my story

Progressive JPEG fucked around with this message at 08:40 on Jan 16, 2017

# ? May 3, 2014 16:31

Bloody: Mar 3, 2013

# ? May 3, 2014 16:35

Progressive JPEG: Feb 19, 2003

ya ive thought of making a newer vid but half the blue led elements have burned out since then (i have it mostly use the r/g elements now)

# ? May 3, 2014 16:50

ol qwerty bastard: Dec 13, 2005; If you want something done, do it yourself!

Sagebrush posted:

you should read this first (Feynman)

yeah i've read that before. and i mean i'm 99.9% sure that there's nothing crazy going on but i want to test it anyway. why? because it's an excuse to build a neat little scientific instrument. and colours have fascinated me for a while (a few years back i looked into the feasibility of building that colour-changing pen i had an idea for, and while it turned out that actual inkjet printer heads use some wacky microfluidic stuff which was way way way outside of my capabilities for fabrication at the time, i learned a whole lot about how colours work. also i built a little thingy that would hook up to an arduino and get a colour reading off a surface by flashing a red, green, and blue LED at it in quick succession and measuring the reflected light with a photoresistor, which was a fun project in itself)

spectroscope update: i tried looking at the heating element of my stove while making lunch, but it was too dim. a candle flame looked pretty similar to sunlight. an LCD screen looked sort of like the CFL.

# ? May 3, 2014 17:13

echinopsis: Apr 13, 2004; by Fluffdaddy

dat owns that little spectrophotometer thing. used them all the time in uni for measuring concentrations of chemical reactions or something i can't remember

# ? May 3, 2014 20:31

theadder: Dec 30, 2011

SEND SPIKE JONEZ posted:

is this the new printer-carry?

no because shes his friend

# ? May 3, 2014 21:01

enotnert: Jun 10, 2005; Only women bleed

evidently now I do small engine, and electric mower repairs.

On the bright side, I have enough poo poo around to cut my grass.

On the blight side, I have like 4 mowers sitting in my carport like a honest south carolina redneck.

# ? May 4, 2014 17:23

coffeetable: Feb 5, 2006; TELL ME AGAIN HOW GREAT BRITAIN WOULD BE IF IT WAS RULED BY THE MERCILESS JACKBOOT OF PRINCE CHARLES

YES I DO TALK TO PLANTS ACTUALLY

might be of interest to some ppl itt: epic are gonna develop Unreal Tournament 2014 using a github repo, which you get access to if you've got the $20/month UE4 license.

quote:

Here�s the plan:

We�ve created a small team of UT veterans that are beginning work on the project starting today.
From the very first line of code, the very first art created and design decision made, development will happen in the open, as a collaboration between Epic, UT fans and UE4 developers. We�ll be using forums for discussion, and Twitch streams for regular updates.
If you are a fan and you want to participate, create a free account and join the forum discussion.
All code and content will be available live to UE4 developers on GitHub.
The game will be true to its roots as a competitive FPS.
Development will be focused on Windows, Mac and Linux.

So what�s the catch?

It will take many months until the game is playable by gamers. This is real development from scratch.
When the game is playable, it will be free. Not free to play, just free.
We�ll eventually create a marketplace where developers, modders, artists and gamers can give away, buy and sell mods and content. Earnings from the marketplace will be split between the mod/content developer, and Epic. That�s how we plan to pay for the game.

# ? May 8, 2014 20:20

Valeyard: Mar 30, 2012; Grimey Drawer

coffeetable posted:

might be of interest to some ppl itt: epic are gonna develop Unreal Tournament 2014 using a github repo, which you get access to if you've got the $20/month UE4 license.

this is completely whacky, but really loving cool

# ? May 9, 2014 06:20

~Coxy: Dec 9, 2003; R.I.P. Inter-OS Sass - b.2000AD d.2003AD

I agree, it can only end well (unironically)

# ? May 9, 2014 10:07

Doc Block: Apr 15, 2003; Fun Shoe

Beer idiot spare time project update: I made my own immersion wort chiller out of copper and vinyl tubing.

The idea is that, after boiling your various beer ingredients to turn them into wort, you use this thing to cool the wort off quickly. The faster you can cool the wort, the sooner you can get in in the fermenter and add the yeast and seal it up, which gives you a much smaller chance of contamination from aerial bacteria and wild yeast. Plus, cooling quickly enough makes the proteins that cause hazy beer sink to the bottom of the kettle instead of staying suspended.

One of the vinyl tubes hooks up to the water faucet, the other goes in the sink/down the drain, and the copper part goes in the kettle with the wort (having been sterilized by putting it into the wort while it's still boiling), and you run cold water through until the wort has cooled down to your desired yeast pitching temperature.

A commercial immersion wort chiller runs about $70, I made mine for just under $40 and 5-10 minutes of pipe bending and assembly. It should be able to get the wort to go from boiling to under 80 degrees in less that 20 minutes (versus 40+ minutes with an ice bath).

Doc Block fucked around with this message at 02:27 on May 14, 2014

# ? May 14, 2014 01:57

echinopsis: Apr 13, 2004; by Fluffdaddy

drug manufacture can be an art and a science!!

# ? May 14, 2014 02:34

Doc Block: Apr 15, 2003; Fun Shoe

given that i also bought a 2 liter erlenmeyer flask and some dried malt extract while i was out getting the wort chiller parts, any neighbors who saw me when i got home would've seen a guy carrying a bigass flask, copper and vinyl tubing, and a mysterious white powder.

so yeah, my local busybody neighbor has probably decided i'm a meth cooker or some poo poo.

# ? May 14, 2014 02:48

echinopsis: Apr 13, 2004; by Fluffdaddy

the difference is that the drug you are making is addictive and ruins lives and families

# ? May 14, 2014 05:13

echinopsis: Apr 13, 2004; by Fluffdaddy

# ? May 14, 2014 05:13

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# ? Apr 27, 2024 21:18

Doc Block: Apr 15, 2003; Fun Shoe

fuk u bitch :argh:

# ? May 14, 2014 05:38

The Something Awful Forums > Discussion > Serious Hardware/Software Crap > YOSPOS > Post your idiot spare time projects. i'm the subtle buttocks

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