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movax posted:i want to make tacocopter a reality
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Jul 28, 2013 11:22
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i dont actualy know what that means but it sounds pretty good
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Jul 28, 2013 11:23
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SmokaDustbowl posted:global priapism system https://www.youtube.com/watch?v=JN0VtHez9xI
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Aug 1, 2013 20:25
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duTrieux. posted:hey guys if i can't read music or play a piano but want to start to learn what i should buy i totally won't abandon this idea like all of my others just get one of these and make with the beep boops https://www.youtube.com/watch?v=45d2Yomsct4
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Aug 4, 2013 23:13
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http://forums.somethingawful.com/showthread.php?threadid=3564010
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Aug 8, 2013 08:29
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echinopsis posted:did u just bump this thread for your own thread well it is my idiot spare time project that i spent the past week on, so it seemed appropriate
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Aug 8, 2013 09:09
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WorkingPeer posted:the original plans call for a set of 3 110v 300w immersion heaters, but i'm thinking of using a single 1000w (or 1500w) coil, so there's one less point of failure. my knowledge of electronics is terrible, though: does 1 1000w coil output (generally) as much heat as 3 300w coils? my other thought is that this would reduce the load on the solid state relay, which i gather tends to get very hot. does this make sense? WorkingPeer posted:speaking of failsafes, i think i'll add a circuit breaker, but i don't know what amperage i should use. the relay is rated to 25a, but uk mains are 13a, so i dunno which makes more sense for a breaker. WorkingPeer posted:the original plans call for you to use an immersible aquarium pump, but they aren't foodsafe or rated for anywhere near the temps sous-vide reaches. so i'll use this food-safe, rated-to-boiling one instead. i could mount it on a little probe like this WorkingPeer posted:i'd need a power supply for the pump, but i want the whole device to be relatively simple looking so i don't want to use a wall wart in addition to the existing ac in so i think i'll use one of these 12v led power supplies connected to the same circuit as the coil and pid. would that work?
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Aug 12, 2013 02:51
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dur posted:how much does it cost to go there and use their stuff? its like 175/mo
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Aug 19, 2013 18:07
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01011001 posted:https://www.youtube.com/watch?v=zyiY_3cyEuo here's a robutt. only fell in once filming it, too 
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Aug 20, 2013 19:45
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WorkingPeer posted:yospos i'm going insane. it's poo poo i don't know all the way down. PID is proportional, integral, differential the overall concept is not that complex. you have an error function e(t) which is just (target value - measured value) for any given time t. now you calculate three different components of error think of a line graph of your temperature on the y axis and time on the x axis proportional is just how far away are you right now from target, this is the height difference for the latest point on the graph = e(t) integral of the error with time tells you your history of cumulative error, aka the area under the curve = running sum of (e(t) * dt) differential of the error is the rate at which you are approaching the target, aka the slope of your graph = (e(t) - (previous e(t))) / dt dt is how often you take a temp sample in seconds or whatever (sample period) each component gets scaled by its own K constant(Kp, Ki, Kd). you have to tweak these values to best fit your specific system then you add up the three components and that gives you the value that you feed back into the system (heater pwm or whatever)
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Aug 21, 2013 00:43
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Mido posted:yo could you recommend a good simulator? i keep finding lovely java ones but im convinced there's some nerdtool that is exactly what i'd like it to be (drag components onto a space and connect them and inspect voltage and see things happen etc) you could try this one, it looks kinda polished but i haven't really used it https://www.circuitlab.com/ i think there is also a fruit tablet version
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Aug 21, 2013 00:57
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hubris.height posted:whats a good equation for culminative acceleration? currently i'm using why are you storing velocity as int? why would a ball randomly accelerate? are you applying this acceleration only when it hits a wall? what are you even trying to do?
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Aug 22, 2013 18:24
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if you want smooth acceleration just add a constant to your velocity. you are over complicating this
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Aug 22, 2013 20:22
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hubris.height posted:sorry to interupt flight sim chat but whats it called when you give a class or object the ability to be added or subtracted and how is it done wanna make the draw update and add velocity with as clean a look as I can operator overloading http://docs.python.org/2/library/operator.html
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Aug 22, 2013 22:52
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actually, more like this link http://docs.python.org/2/reference/datamodel.html#emulating-numeric-types
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Aug 22, 2013 22:55
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odark thirty posted:can be simplified
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Aug 22, 2013 23:40
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or code:
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Aug 22, 2013 23:41
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coffeetable posted:i want that tshirt he sells them in his store http://www.eevblog.com/merch/
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Aug 23, 2013 20:04
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Jonny 290 posted:i had to solder a couple wires in my car the other day and didnt feel like running an extension cord so i brought out an old screwdriver and a propane torch. old school style. butane soldering irons are awesome for auto work
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Aug 24, 2013 22:33
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now throw some specularity on dat ho
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Aug 26, 2013 21:19
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ol qwerty bastard posted:final thing for tonight: made the ball bounce around in 3d space with a light just off to the right of the screen make the walls light up when you hit them
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Aug 27, 2013 04:28
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ol qwerty bastard posted:i went back to my cloud whatever simulator thing and rewrote it using actual navier-stokes this time gj would you say you are pretty navier-stoked right now?
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Aug 30, 2013 20:50
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coffeetable posted:what's the generator trying to optimize/what're the constraints other than "all rooms must be accessible?" optimal buttcrack shaped rooms
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Sep 1, 2013 20:16
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my stepdads beer posted:lol wtf happened to the title bar owned
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Sep 1, 2013 23:02
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working on a python script to help me define box joints and t-bolts and have it all match up perfect for laser cut shiz  that piece is still wip
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Sep 2, 2013 08:09
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a soundtrack for the other video
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Sep 5, 2013 19:28
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oqb try pypy
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Sep 9, 2013 01:50
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i've been workin on a script to generate laser cuttable box joint shapes with bolts and non 90 degree angles. finished up this piece and cut my first prototype piece pieces fit together great  its part of a delta style 3d printer
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Sep 11, 2013 08:41
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Sagebrush posted:2.5 atmospheres really isn't that much. it's about the same as in a car tire or a soda can. you could do it perfectly safely with a piece of abs pipe if you wanted to, an explosion is going to be pretty mild https://www.youtube.com/watch?v=2wkgBPk0DWg
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Oct 4, 2013 05:15
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Sagebrush posted:ya im getting ideas now for a system made from a piece of 3" pipe that you shove a bunch of apples into and charge up with co2 and put a burst disk on the end and then when they're done you serve them by cranking up the pressure and BOOM a bunch of fizzy apples shoot out into a stainless steel bowl and roll around with co2 steaming off how does oxygen get in your acetylene tank
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Oct 4, 2013 06:28
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spankmeister posted:actaulyl we're running out of helium and every time i see a kid with a helium balloon i get mad b/c we need it for sciency stuff. better start up the tokomaks bitch
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Oct 4, 2013 21:21
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01011001 posted:a month later is kind of like "on the way". still doesnt do water-to-land transitions worth a drat but w/e
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Oct 9, 2013 01:08
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yeah bloom the gently caress out of that vidcon
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Oct 18, 2013 02:45
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echinopsis posted:so this is culmination of preobaly a year or more of lots of fuckings round in ableton and trying to find a sound i really liked i like ur mud boobs
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Oct 19, 2013 22:49
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WorkingPeer posted:i need a heating element shaped like this for my project: looks like an immersion heater? maybe try mcmaster. also if it runs too hot you could probably just adjust the voltage being supplied to it. if its running off mains ac then a simple triac light dimmer knob should do the trick. a typical $10 one from hardware store supports up to 600W.
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Dec 4, 2013 01:12
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WorkingPeer posted:i want to theoretically be able to order 1000 of these things
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Dec 4, 2013 01:27
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i did a really simple 3d random walk thing that looks kinda cool http://jsfiddle.net/x84T7/1/embedded/result/
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Dec 14, 2013 11:04
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actually its 6d  becuase it walks over color components too
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Dec 14, 2013 11:04
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i added color cycling  http://jsfiddle.net/x84T7/11/embedded/result/
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Dec 14, 2013 22:34
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continuous walk: http://jsfiddle.net/x84T7/12/embedded/result/
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Dec 14, 2013 23:03
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