This thread is for the discussion of design methodologies and how you approach your design process.
For example I have had a dilemma recently where I am in the process of designing a multi purpose device but cannot decide what the primary purpose/use of the device will be(for multiple reasons).
So in short - let's talk about challenges we have faced during our design and mock up phases and how we overcame these since we all know that adequate planning goes hand in hand with a well thought out final product.
>>936787 the purpose of multi purpose devices is to display it in the bottom of the cupboard somewhere.
design something that does one job well. then add features. the multitool for example. it's a pocket knife. who doesnt need a pocket knife? but then you get a trade off over time between how useful carrying around a fucking toothpick and rope cutter and bottle opener really is. but then there is the market for a real all in one tool.
so tell us OP, who do you think will buy your multitool and for what purpose?
Use case should dictate design, not just some unfocused desire to make a thing.
List what it is to be able to do. That won't compromise your IP, and since multipurpose devices will suck at most tasks you can get some input on how to distribute the suckage to best advantage.
Consider multitools. They suck, but they suck less than not having a tool. Users select based on their personal task priorities. I for example most need pliers, cutters,knives and screwdrivers. A multitool can be with me when my shop is not, or at hand to save travel to get a tool.
>>935971 Older/reclaimed ones, absolutely will. newer ones, some but almost certainly nontoxic amounts. my suggestion/plan is use untreated wood (if budget allows track down crappy cedar at lumberyards, resaw, and use to line structural pine). Or you can line with PE plastic (cheap source is dollar store painter's tarp). the key is trying to minimize the moisture sitting against the wood. Pine will probably last about 2 years without needing to be replaced, cedar 5-10, even without any other steps.
charring the... Comment too long. Click here to view the full text.
Avoid treated wood if possible but it won't be a deal breaker. Go to your local junk yard and ask if they have scrap lumber, might be able to find enough to build your beds for half the cost of using quality lumber. After all you're just going to pile it with dirt and shit and water, no need to get premium locust from a lumber supplier.
>>934887 Stone knapping has been a meme for at least 3.3 million years and Humans weren't even the first ones to start it. We are like the newfags of evolution spouting oldfag memes every time we do flint knapping. Of course we are shit at it and if the oldfags were still around it'd piss them off to no end.
>>935175 its more to do with the type of rocks. most australian aborigines never learnt to knap for example. wrong kind of stone here. you need very fine grained glass or soft fine grained stone. otherwise your options are limited.
Are you asking where to buy lumber? I'm not sure where you are, but for the US, there's big box stores like Lowe's and Home Depot that sell wood. Nothing special but it's something. I is it supposed to be decoration? If you need help on this stuff, we're gonna need more details.
This is an easy one, I guess... I recently started building circuits for fun and I am actually really bad at it, I guess.
I have got this RGB LED: http://files.voelkner.de/175000-199999/185388-da-01-en-FULL_COLOR_RGB_LED_KLAR.pdf
And I have the following problems:
1. How am I supposed to know what colors are on which pin, with the help of this manual? The figures on the first page are showing the 6 pins, and I think pin 5 and 6 are GND. Since the LED has 2x blue and 1x red and 1x green, the 2 pins that are labeled MB are blue, I guess? And logically G stands for green? So E = red? Am I right with my assumptions? How am I supposed to know for sure?
2. In the table "Electrical / Optical Characteristics at TA=25°C" it says that the blue light needs a forward voltage of 2.0 volts. Green needs 2.2 volts and blue 3.8 volts. But there are 2 times blue? Does every blue pin need 3.8 volts, or do I need to divide by 2 (every blue pin 1.9 volts)?
3. The LED is clear. In order to see the full color spectrum, do I need to use a diffused one?
I hope you can help me with my questions! Thanks for reading.
blue pins need 3.8v each the chips inside should be close enough that it will look pretty white but if you look closely you might be able to pick out the individual chips everything else is correct e is probably efficient red or something. the wavelength chart confirms mb and g are common sense.
Got Arduino Uno and TFT shield. Got a SD cardreader and got 2x iPhones (4 and 4S)
Both are totally functional except for the battery on the 4S, it also has it's glass front shattered (LCD is ok). The 4's Power button is broken, the rest of it is fine and I have started cannibalizing it as you can see in pic related.
Have breadboard and cables for testing etc. Have LEDs and a few sensors knocking about too.
It is my intention to mod by bicycle and am thinking sound, lights (safety as well as for coolness). Retractable cable ports to plug in peripherals and I would like to have all the components "built into" the body of the bicycle (handlebars, frame etc).
Not sure what to do, if anything, with the display? Ideas, suggestions, tips, encouragement and flaming all welcome.
/diy/nosaurs, I'm looking for an indoor house plant that is very hardy and quick to use liquid. I play a lot of online poker and keep knocking my Gatorade bottles over during long sessions. I cant just get up to piss. I've got to keep playing or lose my stack. I'm looking for a plant I can set next to my battlestation and use as a urinal. It does not need to handle excrement. Only urine. "Piss plant" in google only brings up batshit crazy claim for a hybrid coleus that's suppose to repel cats/ dogs from gardens. I need an indoor human urine variety.
tl:dr:... Comment too long. Click here to view the full text.
OP here. >>930311 This is not a solution. This is the current problem.
>>930312 A tube to the toilet is great, but I live in a basement. Having to run a hose up steps and around the corner will be problematic. That's why I need a hardy plant. The only real light down here illuminates from my monitor.
asked in another thread yesterday but nobody answered so lets try this again,
I don't know much about electronics. I'm curious about t8 ledtubes and have aquired 3. I have a cable with wich I can hook one of the lamps straight to a multisocket. is there a cable with wich I can connect a further tube to the first one , so both work, or do I have to feed the second one back into the socket.
also, is there a cable equivalent that I can use to hook one up to the cables that come from the wall , like I would normaly hook up a lamp ( sorry for the... Comment too long. Click here to view the full text.
>>937495 There are two different types of LED tubes:
Ones that behave like a fluorescent bulb, so you can just put them in tube fittings and they work
Ones that just look like fluorescent tubes so they fit in tube fittings but you have to wire the bulb fitting straight to the mains, without any of the fluorescent ballast.
It sounds like your tubes are the second type, which means you can run a second bulb's mains lead from either end of the first bulb's mains lead, and so-on. This is called connecting... Comment too long. Click here to view the full text.
>>936386 When I first looked at that, I assumed that was a basement door and got right confused.
1) Stain Glass window art 2) Strobe lights 3) Fold down counter 4) Wall it up with weird shit inside like Nazi memoribillia or a fake human skeleton 5) A functioning window you can slide up and slide down 6) A giant ant farm 7) Several small, or one big, lava lamp 8) Speaker for your kitchen audio system 9) Giant religious statue 10) Art picture of the naked human form and the cuts... Comment too long. Click here to view the full text.
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