What have you built and why? Any Tinkers? PuppYofDoom: Title sorta says it all. Wondering if there are any tinkerers out there. this is in no way my profession just a hobby... tho it is a small tiny part of my profession theres ,machines in all industries. Anyone like building things? make anything of your own? paperclip launcher anything. _________________________________________________________ Myself ive built an electronic cig after i saw a schematic and got all sortsa crazy ideas. got the idea originally from puck e-cig. I smoke an wanted to quit badly, but wasnt satisfied with commerical e-cigs. I needed higher voltage. this is an area i play with alot. all ya need is a switch and a power supply. maybe a voltage reg. repurposed some lightbulb thing called instabulb to accept LED's an array of white white white white white one yellow. one orange some resistors and i use nimh batteries and it actually can stay on for over a day running straight. it uses bulbs normally just cut that part off and the wire and replace with leds. it works reaaaaaly well. after seeing a part called an atomizer from ecigs i found a way to have a portable coil like a cigarette lighter anywhere i go. u use a coil with lower resistance than what you should have and it turns red hot.id like to put it on a butter knife but i dont think that its sanitary. usb battery box ideas from maximum pc a few years ago. lil power packs for my cellphone, e-cig, led beam flashlights.  DEEP_acheleg: i have a lot of fun building speaker cabinets. i have been advised that i need a physics degree to really get it right, but, a piece of paper has never hindered me before DEEP_acheleg: puppy, if you are interested, you should look for the freeware "hornres". you add in the physical attributes of your cabinet design, then enter the thiele-small parameters for your driver, and it graphically simulates the acoustic characteristics of your design. it is primarily for building horn-loaded systems, but is still useful for simple bass reflex designs. PuppYofDoom: considering the savant who made most of our audio systems advancements is some dude with aspergers who quit college..(john eder robinson) i agree on the not needing a degree. I dont need an engineering degree to make equipment. Some poeple can read n talk big. only few ppl can work with their hands and make wonderful things. DEEP_acheleg: an engineering or physics background can allow you to make more optimal designs with drastically less of that wasteful trial and error PuppYofDoom: haha speakin o speakers i mod and rip apart coaxial jacks for my e-cigs and to power devices in odd shapes.. i was looking at speakerforum. i dont get alot of the terminology seems to be specific parts. but if i get a basic blue print /wiring design i can figure anything out. i cant actually tolerate that much bass . but ya know what, ill make something mini. i wantd to make my own sound sound headphones. i have a good excuse now to make em. the dollar store has all these headphones/earbuds for cheap and i have a gaming headphones that i repaired like 20x. i think ill do 1 pair center channel. front back. have three cords. PuppYofDoom: oh ya gotta know about resistance when making e-cigs or the coils go insane. using high voltage on a low resistance coil can burn stuff. but thats actually how i got the buttger know idea lol. i realized why dont ppl do this for a ighter instead. its way cooler lookin. DEEP_acheleg: ya, unacceptably low resistance can burn out the power source circuits. it is the same with speakers- too low of an impedance will overheat the amplifier DEEP_acheleg: headphones have extremely high resistance, around 600 ohms. if they had a lower impedance, such as 8 ohms (as with common home stereo speakers), they would draw more than enough power to melt/fuse the voice coils, not to mention, blow our eardrums. other than the extremely high impedance headphones, most home stereo set-ups use 8 ohm amps and speakers. car audio uses, most often, 4 ohms for the all range drivers, and some aftermarket amps support a 2 or, occasionally, 1 ohm load. if you were using a 2 ohm stable amp for a car subwoofer, you would likely run 2x4 ohm drivers in a parallel circuit. alternatively, you could run 2x4ohm speakers on an 8 ohm receiver, if you run the 2 drivers in ***series* a parallel circuit drops the resistance, and a series circuit increases resistance (Edited by DEEP_acheleg) PuppYofDoom: ok imagine this is a big ear piece ( ________) (________) <- pieces, looks like a butt yeah. Ok now what im gonna do is insert the small buds in the ear piecces. replacing whats there. ill call them section C(c) back(b) front(f) headphones will now look like this (_b____c____f_) (_f____c____b_) Now each of these earbuds can plug into sound section, for front back etc. free surround sound made easy. PuppYofDoom: nono im just looking at using standard settings for my own pc. or standard audio ports. im not trying to break glass now or move ppls hair lol.. DEEP_acheleg: earbud drivers usually cannot offer the same db levels as standard headphone drivers, which is why they have to literally be IN the ear, for the bass to be heard. DEEP_acheleg: i do appreciate your innovative spirits, i only offer words of caution. ie dont get your hopes up too far. it may work wonderfully; however, i doubt that the earbuds will produce a sufficient low end, if the distance between the bud drivers and your ear is not optimal for the earbud drivers' designs PuppYofDoom: thats a good point. but in an enclosed earpiece it works pretty well. just have to adjust the setting on the pc. till ya get it right. and im not using internal earhole ones. im using some cheap dollar store thing that sorta like hangs over your ear like a coat hanger over your earhole. they do a pretty decent job i dont know wtf to call em. theyre not really earbuds. id guess theyre ike headphones but not headphones lol.. DEEP_acheleg: over ear buds, i think they are called. ya, i work a dollar tree, i am familiar with that headphone design. in my opinion, they are the best quality headphones we carry; however, i am only judging by the physical design- i havent bothered to try them out yet. DEEP_acheleg: i dont bother with dollar tree headphones, the cables always fry, or come detached from the jack DEEP_acheleg: solder your own cables directly to the driver leads, and you could very well be in business. if 1 driver per channel does not suffice, you would have to go to 4 drivers per channel, in a series/parallel configuration- to keep each channel at 600 ohms PuppYofDoom: yes are detached alot! i always have one piece not working. so what i did was resolder with a thicker wire. but yeah i get tired the detach em alot. its actually alot of hassle. if i just want normal stereo. the whole lil contact point is also annoyingly small. but the parts work and are there. just takes some work. im thankful theyre so cheap at dollar tree. i frequently buy flashlights or sticky light and retool em with my own leds and nimh batteries. i just use a 200k resistor so they down burn out on 4x AAA. /3xaaa but man some of the flashlights that use a 3xAAA holder inside flashlights trying to mimic a d/c cell battery those things sometimes have their lil contact plates crossed or they randomly get hot like fire. its so dangerous lol. i have to throw the holder at the wall or floor to get the batteries out the holder gets hot and starts smellin o smoke. (Edited by PuppYofDoom) PuppYofDoom: explosion jet or a continuous pressure gas feed? my curreent project is using thermoelectric cooler units. theyre like 2-3 bucks. usually u find em on cooling fans or in weird units. they can generate a few volts from heat. im looking@ safe charging mechanisms. I just bought them a lot of 5.  Captain Canada: Anybody tried build a mode of transportation without the use of natural gas,diesel,propane or gasoline????? | Technology Chat Room Similar Conversations |
