Oh that sounds super cool! As a fan of fancy optics I certainly think a video would be a fantastic thing to make on it!

Oh nice you did a video! Currently watching. For those of you who want to see what is the loudest pair of binoculars I have ever seen check it out for yourself! kzfaq.info/get/bejne/nNmYeqeK2NC3iJ8.html

Wrong, you can tell the amperage. I can send 100A at 10v through a really thick wire which is 1,000 Watts. However voltage doesn't require thick wires. So if I send 1,000 volts I just need a wire that can theoretically handle 1 Amp, or 1/100th the cross sectional area and get the same 1,000 watts through it.This is part of the reason why the electrical grid is stepped up to several Kilovolts for transmission over distance.

Made my first laser out of the stuff. My brother in law does quite a bit with carbon fiber, not sure how much these days. It's excellent stuff and works well with L channel. Downside is how terribly irritating it is. I did a number on my skin. You can tell at one point where my hands are pinker than normal.

@@Zenodilodon Yes, I'm already using 1/4 round 2020 extrusions with aluminum sheets. But, still need to send out for black anodize or baked enamel. Yeah, I noticed the reddish hands and fiber burrs, before polishing. Worked with fiberglass layups and grinding molds, back in my youth. Rubber gloves and eye protection are a must. Was thinking that, given the lathe, your final build might benefit by turning those teeth off the flywheel. I like the idea of the back 2 back motors (mounted onto a central plate). Interesting tests regarding rotation direction while hanging from the string, as well. At 1st, I was wondering whether the direction depended upon the spin direction or if it rotated the opposite direction on the southern hemisphere, like water draining from a flushed toilet. Seems to be a combination of RPM & angle of the dangle, like the tilt of a circling helicopter. As you said, there's a void between OTC motors and lathe turned flywheels. So, most folks (kids of all ages) never get to observe these experiments.

@@TheOleHermit I had thought about turning the teeth off the gear, but I think what I am going to do is watch out for clear containers that I can make plastic rings out of. That should kill the air drag pretty decently too. I found another VHS tape head and a 12w little fan. Very tempted to make another one using hard drive platters for the frame. Probably should forgo the expenditure of time though. I have strong considerations for giving the TEA Laser pointer another go around for the next video. I should have all the bits. Since my early attempts I have learned a bunch about those Lasers too.

@@TheOleHermit Regarding the percession direction or rotation. That has to do with what side of the flywheel the gyroscope is hung from and what direction it's spinning the flywheel. There is a gap in a lot of projects. Many simple tutorials without substance that run for 10 mins and a little jingle. There are also the heavy hitters with better capabilities. I feel there is a whole bunch of actual real world resources that the DIY community doesn't consider. Some of it is inexperience, some of it is barrier of DIY replication. That's why in a bunch of my videos I try to show many examples to fill in between theory and practical building. I hope it gets the creative problem solving juices running. It's a buzz kill to see something that someone else has and yet have no idea how to make something similar.

@@TheOleHermit The gyroscope hanging from the string rotates in the same direction in both hemispheres.

The kind with poor survival instincts? :P

Sure can!

Those server hard drive motors sound like awesome candidates for a drone. The regular 7,200 RPM motors are astonishingly capable in power. The stack of platters sounded like a mosquito! I wonder if they keep the space in the server HDDs just to prevent clutching and damage to other components in the rack. The motors like I showed are very low clearance along the magnet ring, I don't think they would hold up very long in a practical working environment for a drone just due to the ease of contamination getting inside. A few blades of grass of a decent bug would be enough to muck it up and then how do you effectively clean it. As i said all things to consider for selecting a motor lol.

@@Zenodilodon funny thing that comes to mind, is the game battle tech I remember one of the components to be chosen when building up your mechs, was a gyroscope, something that would make it easier to keep it upright even if it lost one of the two legs lol.

Oh I know what you're speaking of, yeah they where I think compressed gas driven and would also close loop steer the fins. Wing tip air warping would do a number on the gyros, that's a clever bit of knowledge I'll hopefully never use!

I could see that happening. I wonder what the typical % of oil there is in the material. A solvent might thin it and draw it out quicker too. Figure it has to be decently heat resistant and low evaporating. You could heat it until it carbonizes and enjoy your " Graphite " lubricated bushing :P

Indeed so, but I get so many vape batteries off the street it really doesn't even matter. It's easily up in the 500 batteries range, which well... is kind of sad. I think I turned these on like twice since making them lol.

~ Honorably bows ~

As they say, wibbles wobble but they don't fall down!

I mean... This is literally how they work though. www.rainbowprecisionproducts.com/bb-oil-filled#1

Glad to hear fan and fellow DIY enthusiast. The plasma pens are one of those projects where you just need to have nearly everything custom made and tuned around the transformer. There is a plasma pen DIY video on Join The Technicians which is about as direct and simple as it can get. This is also a decently high fail rate project as the transformers like to burn up. I would suggest looking up that video if you have not seen it. As far as a kit, not sure how I would even go about that honestly, just for the reasons listed above. I have parts, but still it would take some time and level of assembly just to make sure it even works as a functional LC oscillator. If I did put something together it would be a solid day or 2 process of custom tooling and careful component selection, a one of that would probably be not the cheapest for the actual physical parts you would get. That's the nature of niche devices.

@@Zenodilodon I loved the tutorial, but im looking for a place where i can get some of the parts(transformer, battery, case, some components and output electrode)

Well shit now I feel dumb but obviously you mentioned it in the first 5 minutes. 😂

Some of the neatest things I've ever held in person were the multi-axis crazy gyroscopes like used in aircrafts and navigation during spaceflight. Those laser gyroscope type things are super weird and awesome and they're a lot of fun to mess with you get the chance to pick one up at auction. Because other than that they're like tens of thousands to hundreds of thousands of dollars even for used ones 😯🤷‍♂️

Hey, you where 100% honest in saying that you had not finished the video lol. I can't hold anything against you.

Yeah a laser ring gyroscope would be neat to get eventually. They are pricey though, very pricey. How hard could it be to make one?... That hard you say? darn :/ lol

​@@hullinstrumentsthose BLDC VCR motors are AWESOME and the ones with air core coils stuck to the PCB are the SEXIEST

The gyro flew out of my hand long before my heart could pump enough to make a decent splatter. But for the second or so or reaction time after it sure made a mess. Good10 minutes of finger painting.

@@Zenodilodon Well, I hope it heals up ok, I hate cutting my fingers. I like the creative recycling of otherwise wasted vape batteries.

@@WaffleStaffel I have a few friends who use the single use products. I always tell them to save the batteries for me. Some I also just find here in the city. I have been making lights out of them too! One goes for 7 weeks continuous. The other cool thing is that I always get an assortment of frames and batteries occasionally the USB charger too :P

Si están girando en direcciones opuestas, sí, deberían cancelar las fuerzas de los demás. Si giran igual que las ruedas de un automóvil, entonces las fuerzas aumentan. Acabo de probar con el mío y ese parece ser el escenario.

@@Zenodilodon podria hacerse una motocicleta de esas que mantienen solas el equilibrio o incluso con una sola rueda. kzfaq.info/get/bejne/d7CBjal5r-DbpGg.html

@@gabrielmartin3107 Con mucho gusto dejaré que otra persona aborde esa idea de proyecto. No es realmente mis intereses honestamente.

I have the urge to make a sleeper computer fan that can shred itself with it's own power. Sounds like a T2D thing to do right?

@@Zenodilodon 😁👍 absolutely 😅😅

In theory your assumption is correct, however there are some caveats. These you can actually prove to yourself if you take the time. So a plane doesn't really go that fast on the surface of the Earth. It would actually take about 45 hours to do a full rotation. The Earth is rotating faster so in actuality the rotational force of a plane would be like half as strong. Think of it like this... You have an ant on a bowling ball that can run around the circumference once a minute. The ball spins around twice a minute. Why do I bring this up? Well i am pointing out that it is actually easier to measure the planetary angular velocity than an airplane's. So let's do that, one rotation every 24 and not 45 Hours... We can even go a bit faster and measure a full rotation ever 12 hours or about 4 times a plane's experienced angular velocity. ( one rotation every 45 hours ). Simple enough to make a test for... Simple, make a stage that rotates once every 12 hours and put a gyroscope on it. The gyroscope should react to the rotation of the stage that rotates yes? It should react to a stage that rotates even if it's once every 12 hours?... Actually no.... So when you as a human play with a gyroscope you will tend to rotate it very quickly in your hand and you will very quickly see the influence that it has on the gyroscope. You will also notice that when holding one, the faster you move against it's axis of rotation the more you feel the gyroscope fight back. However, if you move it very slowly then you barely feel anything at all. This is the biggest thing to understand. Mechanical gyroscopes have mechanical and air friction. This consumes a bit of energy. You need to have enough energy over time to overcome these frictions, and a single rotation in 12 hours is basically nothing for energy input to overcome these frictional losses. Move a gyroscope in your hand and rotate it just once an hour and you will struggle very hard to feel any gyroscopic force. A mechanical gyroscope simply too loses to much to friction. To overcome this they make optical gyroscopes and they use a laser to measure angular momentum on those minute scales. Very cool devices and I suggest reading up on them! One was actually bought by a Flat Earther that goes by Bob and sure enough even he got a 15 or so degree per hour drift on it.... en.wikipedia.org/wiki/Ring_laser_gyroscope The proper tools for the proper job, Grandma's eye glasses won't let you see your blood cells.

The power that can be stored in a flywheel is absolutely crazy. It's really deceptive too until it isn't. I have a healthy respect for high speed spinning devices these days!

~ Childish facial noises ~