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Post by DragonKingReborn on Jan 10, 2023 23:38:19 GMT
Oof. Getting big Multicore energy from that sucker. Basically the same principle but with audio. Comes in 20, 30, 50 and (gulp) 100m lengths with up to 30 different leads inside it and a junction box at one end. The 50 and 100m units are...heavy. And all of them are a colossal pain in the arse. 6x 20A, though? Noice. Thems big juicy. Very helpful if you need control of discreet circuits from a distance. Sets are not wired like homes. Light switches do nothing but move. The power outlets are real... we split the duplex, and have one half of the receptacle powered by "hot" (120v) power from a nearby distro box, and the other half of the receptacle is powered through a remote dimmer, sending juice through socapex cable to one of these breakouts. We have dimmer racks made to accept this cable, so 12/24/48/96 and then racks of 96 if you need more. Before "smart" lighting, this was how we did almost everything, and the stages were insanely hot. LEDs still got hot, but the difference in heat is equivalent to a Sovereign-fart. (I think this is big? Like metric shit ton?) Each breakout is labeled, starting at 1-6, then 7-12, 13-18 etc LEDs have been quite the game changer for events, as well. Spots were nightmares and drew big loads. Now a 12W LED spot gives more light with control over colour, diffusion, punch and even focus from a fricken tablet than we used to get from a 1000W that needed a buzzing dimmer pack. Good times. And we can sequence them and control collectively or independently. For less power than the laptop I'm on draws to charge its battery.
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Post by Deleted on Jan 11, 2023 14:40:52 GMT
Yes, it has quite literally changed the game.
We still need lots of power though. No LED can touch the 18k yet, and depending on the day and the goal, we sometimes need lots of 18k lamps. Because the sun isn't bright enough :/
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Little Pumpkin
Games: Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Mass Effect Andromeda, Anthem, Mass Effect Legendary Edition
Origin: Beerfish
XBL Gamertag: Beerfish77
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Post by Beerfish on Jan 14, 2023 2:22:16 GMT
We fear what we do not understand. I fear electrical work. I've installed a couple of new light fixtures and that is about all that I would attempt. I still look at them every time I turn on those lights expecting to see smoke to start billowing from them.
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Post by Deleted on Jan 14, 2023 2:25:00 GMT
I Lamp Actually, my wife hearts this lamp. I don't totally hate it, because I learned a couple things. One - all-thread hickey sockets, wired through a skinny arm without sufficient radius for wire movement, is a pain in the ass. How many twists will it take to get to the bottom of the all-thread? Can I wind it the other way enough so that it threads in properly without becoming a twisted fire hazard of doom? Yes, and yes; there was cursing involved. Two - This was novel. I have been using lamp cord, in many innovative and depressingly stupid ways, for my entire electrical career. We used to use it way too much, and over time have become aware of what an incredible liability that was and use it the way it is supposed to be used - for distances less than 15 feet/5m or less. That said, I never realized there was a preferred neutral side to the wire. Since most devices don't care at all if they are getting hot or cold from one side of the tap, as long as it can flow through to the other, we rarely pay attention to polarity while using it. Long story short too late - reading the net trying to find a hint on dealing with the all-thread socket and the wire twisting, I found an old timer telling us that the ribbed side of the lamp cord is supposed to be the neutral wire. I would have assumed the opposite, and just had rationalized that it was there to tell us which wire we were working with in cases where polarity would matter... I thought it was arbitrary for us to choose, not something that had a "standard". So, there ya go. Need to replace the ground harness wire (got cut when taking the lamp down) and I can reinstall this. I will take every victory I can get these days, and of all my victories, this is one of them.
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Little Pumpkin
Games: Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Mass Effect Andromeda, Anthem, Mass Effect Legendary Edition
Origin: Beerfish
XBL Gamertag: Beerfish77
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https://bsn.boards.net/user/314/personal
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Post by Beerfish on Jan 17, 2023 4:32:55 GMT
I bought two lamp kits a few months back. I have some really nice wood from tree trimming that I thought would make nice lamps. In the spring when I get back to wood working I'll make them.
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Post by rewindbutton on Jan 17, 2023 12:25:29 GMT
what I do in my lab is none of your business It's true, until it isn't. I don't really build stuff that often, but when I do, I write "Danger, DO NOT USE" on it with a permanent marker. If you use dodgy looking equipment and fry yourself despite the warning, you're on your own. My father-in-law is a retired electrical engineer who has built hundreds of gadgets over the years. Some of those things will make your hair stand on end, sometimes literally.
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Post by rewindbutton on Jan 17, 2023 12:39:33 GMT
Since most devices don't care at all if they are getting hot or cold from one side of the tap, as long as it can flow through to the other, we rarely pay attention to polarity while using it. My #1 advice to the readers of this thread would be: always measure! Grab that multimeter and check what wire goes where. You really want that live wire to go to live, not neutral or ground.
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Post by Deleted on Jan 17, 2023 13:10:32 GMT
Since most devices don't care at all if they are getting hot or cold from one side of the tap, as long as it can flow through to the other, we rarely pay attention to polarity while using it. My #1 advice to the readers of this thread would be: always measure! Grab that multimeter and check what wire goes where. You really want that live wire to go to live, not neutral or ground. Yes, so much yes. I didn't label my wires on the disassemble, so I was staring at 3 pieces of romex coming into my j-box. I didn't know which one was the switch, and they used a regular piece of romex for the switch line. That's fine, but damned if I wish they didn't label the white "neutral" wire of switch run with black tape, so anybody could look in there and figure it out just from visual assessment. Since that didn't work, multimeter. What confused me was I had no idea where the 3rd piece of romex went - as far as I had thought, that lamp was the end of the line. Turned out to be a single wall outlet (in between two other dedicated wall outlet circuits) which annoyed me but oh well. Anyways, 6 wires in the box, two more I added with the light (it's hanging again, works like a champ!) So, breaker on at panel, switch off for lamp. I find one hot wire at line voltage, everything else is dead. Then, turn on the switch, and see if anything changed. Nooe. This is good, no danger leaving the breaker on. This also tells me that the power is not coming from the switch, but is in the middle of the loop. Next I pulled the switch out from the j-box enough to put a meter on it. With a piece of lamp cord, I made an extension for myself to test continuity between the switch and the ceiling j-box. This allowed me to find the switch wires. Perfect.... we know this isn't a three way switch, and nothing else has energy in the box, so the third set of wires, whatever they are, can be wired normally. I did spend another 15 minutes figuring out where the wires went... had a hunch, was correct. The two most essential functions of the meter, continuity and voltage reading, were used in this adventure in lamp repair. Final note - all-thread can be a real tricky thing when wire is passing through it. A repair like this requires some patience, but the wife is happy and so so am I!
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Post by AnDromedary on Jan 17, 2023 17:27:39 GMT
Hmmm, interesting thread. I am by no means an electrician but I am working with electronics, mostly in the context of biology and have to deal with very small voltages and amps (mostly mV and pA). So the problems I deal with are mostly more in the realm of proper amplification and enhancing signal to noise ratios by proper grounding and shielding all the equipment, providing the correct temperature, a good wire-to-liquid interface, etc. My favorite line from one of our major guide books. After spending about one and a half pages on proper grounding of equipment, their last sentence in the chapter is: "Finally, it should be admitted that one always begins noise reduction in a mood of optimistic rationalism, but invariably descends into frustrating empiricism" I am also building some custom microelectronics rigs for my equipment (I'm a pretty regular customer at sparkfun). I never really got good at soldering though. Always seem to end up with big blobs of tin.
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Post by rewindbutton on Jan 18, 2023 13:12:36 GMT
electronics, mostly in the context of biology Is that electro-chemistry or electro-biology? Wait a minute! Are you talking about wetware? Oh mighty ungulate, when can I expect my artificial eye to arrive? enhancing signal to noise ratios That is a worthy field. As someone who used to be able to solder (and see) surface-mount components, I recommend watching videos about the subject. It takes practice, and knowing a few tricks, but I bet anyone can learn to solder properly.
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Post by Deleted on Jan 18, 2023 16:07:49 GMT
I cannot solder properly It is a problem, as if I could solder properly I could double my salary tomorrow. I am a perfect fit to lead a department, except the core job of that department is soldering. So, on a big project with a big crew, I am perfect. On a small job with no crew, I am worthless. Good times! It's my hands. They are, well, beaten, shaky, and also a little bit of old dog new tricks. So, I try as much as possible to not solder, so I don't feel worse about myself. Rationalism --> empiricism... This goes beyond just grounding in my opinion. At certain levels of troubleshooting, my rational mind tells me there is no ghost in the machine because ghosts don't exist. The empirical brain reminds me - bullshit, we see plenty of mysterious electrical ghosts. Not all of them can be solved by either approach, sometimes it takes both sides of the brain and sometimes, well, that's a ghost. See how I flipped that, and it's still true? Electrons man
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Post by AnDromedary on Jan 18, 2023 17:04:53 GMT
electronics, mostly in the context of biology Is that electro-chemistry or electro-biology? Wait a minute! Are you talking about wetware? Oh mighty ungulate, when can I expect my artificial eye to arrive? Almost. I'm mostly doing basic neuroscience. But no bionics, sorry.
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Post by Deleted on Jan 18, 2023 18:09:35 GMT
Is that electro-chemistry or electro-biology? Wait a minute! Are you talking about wetware? Oh mighty ungulate, when can I expect my artificial eye to arrive? Almost. I'm mostly doing basic neuroscience. But no bionics, sorry. Bionics?
Please let me know when you get there.
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Post by rewindbutton on Jan 20, 2023 11:56:48 GMT
It's not that difficult, but it takes some practise and a good soldering station: 1. clean your surfaces 2. check temperature; you need to adjust the temp to match your solder 3. use correct soldering tip for the job; not too big or small 4. use flux, even if your solder includes flux 5. make sure everything is at temp, add solder; it should melt real nicely and evenly And practise a lot! The more you fail, the more you learn.
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Post by rewindbutton on Jan 20, 2023 12:02:09 GMT
Nothing basic about that. Tell those bionics guys and gals to hurry it up! There's a case of Macallan 12 coming their way if they succeed.
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Post by Deleted on Jan 20, 2023 12:54:43 GMT
It's not that difficult, but it takes some practise and a good soldering station: 1. clean your surfaces 2. check temperature; you need to adjust the temp to match your solder 3. use correct soldering tip for the job; not too big or small 4. use flux, even if your solder includes flux 5. make sure everything is at temp, add solder; it should melt real nicely and evenly And practise a lot! The more you fail, the more you learn. This is all good advice! I have improved over time, and can achieve good results. I am just slow, and my actual specialty is controlling the fixture, not building it - it is programming that I do with light fixtures and their control boards. Which I am also slow at. I am the rare bird that is the bridge. I am not an engineer, but I am much more than a technician. I can talk to everyone in the field and have an intelligible conversation. I can "translate" between the groups. I get out of my depth quickly though, and if the job has gotten to an "oh shit" point, I am probably never going to be the guy that can make the repairs in the time necessary - physical limitation, not enough time to practice more, and it stresses me out... I am a perfectionist, soldering cranks my anxiety to 11. Key lesson - don't start your new career that is entirely unrelated to your education, at 37.
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Post by rewindbutton on Jan 20, 2023 13:02:21 GMT
don't start your new career that is entirely unrelated to your education, at 37. I did just that, at 35, when I switched to healtcare. I Don't recommend it either!
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Post by rewindbutton on Jan 23, 2023 14:27:06 GMT
I've been aware of David E. H. Jones' perpetual-motion machines since the 80's; they are quite cool if you can study them up close.
Let's hear your ideas what makes them tick?
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N7
Little Pumpkin
Games: Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Mass Effect Andromeda, Anthem, Mass Effect Legendary Edition
Origin: Beerfish
XBL Gamertag: Beerfish77
Posts: 15,021 Likes: 35,817
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https://bsn.boards.net/user/314/personal
Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Mass Effect Andromeda, Anthem, Mass Effect Legendary Edition
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Post by Beerfish on Jan 24, 2023 20:49:02 GMT
I've been aware of David E. H. Jones' perpetual-motion machines since the 80's; they are quite cool if you can study them up close. Let's hear your ideas what makes them tick? Invisible hamster is my theory.
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Post by AnDromedary on Jan 26, 2023 18:32:37 GMT
Invisible hamster is my theory. Poor thing has to jump over those blocks all the time.
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Post by Deleted on Jan 27, 2023 21:25:40 GMT
If we can make a perpetual motion device that creates more energy once started than it took to get started, it's kinda cold fusion.
Input less energy output more energy. I think there are laws written about this, but I am not an engineer and don't want to punch too far above my belt.
Also, I don't care for "laws" and think they are hubristic in the realm of science. It is all theory IMO.
So, with that said - I also ascribe to magic hamster theory.
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Post by rewindbutton on Jan 30, 2023 13:28:49 GMT
Obviously I think electricity has something to do with it, but what exactly? There have been competitions, where over thousand people have tried to quess the working principle, and failed. I mean none got it right. Which means that it has to be more complicated than it seems, because an electric motor and batteries is the obvious answer. Meanwhile, magic hamster it is.
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Post by Deleted on Jan 30, 2023 16:55:31 GMT
As a boy, I was given a miniature, but fully functional, electric motor/generator.
I learned at this time, from the engineer (Lawrence Livermore) that gave it to me, that an electric motor and electric generator are the same thing, just the direction the energy is flowing changes.
Power comes into coil, axle turns.
Axle turns from external forces, power comes out of coil. I found this both fascinating and frustrating then, and still now.
We cannot make something from nothing, that is obvious. But, we can make more with less, it is a common thread of human history. Thus, the perpetual motion device remains an elusive dream.
Thanks Rube Goldberg?
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Post by rewindbutton on Jan 31, 2023 12:36:36 GMT
After thinking about them for a week, my last and final attempt at David E. H. Jones' perpetual-motion machines is this: They are pneumatic. There's a cleverly hidden pneumatic cylinder somewhere, that gives just enough push to keep the wheel turning steadily. That would be a simple and elegant solution. Royal Society, if you are listening, feel free to chime in.
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Post by rewindbutton on Feb 10, 2023 14:32:14 GMT
If you haven't yet watched Electroboom's videos, you've been missing out: How NOT to Make an Electric Guitar (The Hazards of Electricity) And remember, Mehdi is a trained professional.
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