How To: Make the Scariac (A Poor Man's Variable Power Controller)
Mixing water and electricity is extremely risky and potentially lethal, yet that's exactly what I did with the Scariac. In its simplest form, the Scariac is just a glorified version of two wires in a bucket of water, but it's actually one of the cheapest power controllers you can make. Please enable JavaScript to watch this video.
WARNING!This project is extremely dangerous and should only be attempted by those highly skilled in working with electricity.High voltages and high currents passing through the water provide an open hazard of electrocution, and may cause death. This design does not include any electrical ground. This system is not recommended as a safe device. Its purpose, rather, is to regulate electrical current in a simple and low cost way. Toxic gases may be released from the solution during operation. This project should not be attempted without adult supervision and adequate training. Misuse, or careless use, of tools or projects may result in serious injury. Use of this video content is at your own risk. Now that that's out of the way...
Making a Poor Man's Power ControllerI needed a way to adjust the power running to my homemade stick welding system, as seen in the video below: Please enable JavaScript to watch this video.
Even with enough power to the welder, the main problem was finding a system that could vary electrical current without costing an arm and a leg.In a tight situation, it's good to be aware of options, and that's why I was happy to learn about the idea of the water resistor.
Variac vs. ScariacI got the name "Scariac" (with permission) from YouTube user acronus in his video on making a homemade Variac. It's a fitting name since the system acts very similar to a Variac. The idea is to use a water-based medium as an electrolytic resistor. A bit of electrolyte is added to the solution to make it slightly conductive, and when two electrodes are placed in the solution, the allow more or less current to flow, depending on whether there are closer or further apart.In its simplest form, this device is just a glorified version of two wires in a bucket of water.
"How I Did" vs. "How To"Although I've taken thought to minimize risks in operation, I have to stress that I don't consider this device safe or foolproof. It has the potential to be lethal, and even though I show step-by-step how it was made, this is more of a "How I Did" project rather than a "How To." The system has a power lever to vary current output, and a loop of wire for connecting an ammeter. The outlet on the board is where the devices plug in, and the switch acts as a kill switch to turn the device completely on or off at will.
ADDITIONAL WARNINGThere is no grounding wire connected, as stated before, and always possibility of failure in any part of the system. So, extreme caution and respect is needed when operating. The device doesn't have any internal fuse, circuit breaker, or current-limiting device, so there is also risk of fire if the system shorted out and your home circuit protection system failed. This fire could potentially happen inside the walls of your home.
Using Electrolyte as a Variable ResistorI used a water-based medium for the variable resistance.2 gallons of tap water (distilled water will also work great, but is more expensive) 1/4 teaspoons of 100% Lye (NaOH) Even though the amount of lye is very low, it makes the water conductive very quickly.I found my lye in a drain cleaner from the hardware store. 100% lye in fact! Any salts could probably be used as an electrolyte, but using something like table salt (NaCl) seemed to introduce the possibility of generating chlorine gas, and that's why I went with the NaOH instead.
Additional ConsiderationsDuring operation, the electrolysis does produce some gas, however it seems to be minimal when supplying with AC power. DC would be a much greater concern.The system is also open (ventilated) so any gas generation escapes quickly. In my experience, this doesn't give hydrogen and oxygen gases enough time to build up to a dangerous level, and I wasn't able to achieve any gas explosions, even at ultra-high power settings, despite trying. However, it is good to be aware of the risks, and operate in a well-ventilated area as a precaution.Well, there you have it! That's how I sacrificed safety to build a variable power controller on a very small budget. If you haven't see the video yet, it's not too late. Watch it here!If you like this project perhaps you'll like some of my others. Check them out at thekingofrandom.com.
How to Get Emoji on Android. This wikiHow will teach how to get emoji characters on your Android device, which depends on the version of Android you are running. Open the Settings menu for your Android.
Disable emoji suggestions when using gesture typing with the
How To: Get Motorola's Active Display Features on Your Pixel or Nexus How To: Unlock the Hidden Battery Percentage Status Bar Icon in KitKat on Your Nexus 7 Tablet News: The Complete List of Marshmallow-Compatible Xposed Modules
How to Get Rounded Screen Corners on Your Nexus 7 Tablet for
Over the last few months I have been getting more and more into computers over the last few months, and I discovered my new favorite thing to do.. notepad stuff! I will teach you how to do a few basic things in notepad, notepad++, and how to use them to your advantage!
Halloween: How to Creep Out Your House - lamag.com
Warez Leecher Names - Ebook download as Text File (.txt), PDF File (.pdf) or read book online. Warez Leecher Names
News Roundup | Techrights - Part 85
techrights.org/category/news-roundup/page/85/?stories
If you want a Linux machine and don't want to worry that your build won't work, there are several vendors to choose from (one of which is Dell). If you want all your Steam games to work, the best choice of Linux to put on it (short of putting Steam OS on it) is Ubuntu Linux.
News Roundup | Techrights - Part 74
techrights.org/category/news-roundup/page/74/?stories__
In his book Busy, Tony Crabbe suggests between 10-20 friendships are in this category and you should spend all your time with these people rather than letting your time be spread thinly across superficial Facebook "friends". Facebook's two billion users milestone makes it bigger than China
The Hackers Manual 2016 | Linux Distribution | Desktop
To start identifying colors, simply launch the app and point your device's camera towards the object with the target color(s). Information regarding any color falling within the target marker in the center of the screen is displayed at the top Like both of the aforementioned solutions, Color Grab supports a database that holds detailed information for thousands of different colors.
Identify Colors using Android Camera with Smartphone Color
androidadvices.com/identify-colors-android-camera-smartphone-color-grab-app/
For those who are using Android phones, there is an easier option by using an Application called Color […] Identify Colors using Android Camera with Smartphone Color Grab App - Android Advices Identifying the most basic colors is possible for most of us, but going a little deeper into it and trying to play around with the shades and color
8 Best Color Matching Apps For Android and iPhone | TechUntold
The Galaxy S9 is truly a sight to behold. With a class-leading display, the best camera ever put into a smartphone, and Samsung's cutting edge design, it might just be the best piece of hardware on the market. Having said that, some of the most useful additions are actually in the software. Unlike
How to Be a Multitasking Ninja with - Samsung Galaxy S3
By default, Windows will stick to one language for all apps unless you change them. What few people know is that you can set language on a per-app basis in Windows as well. When you set language on a per-app basis in Windows, it remembers which language you preferred to use in a particular app.
Use a Different Language in Each of Your Android Apps [How-To
How to Theme KitKat to Look Like Android L on Your Nexus 5
How to quickly reply to a message from the Lock screen of your iPhone or iPad You can replay from the Lock screen by using 3D Touch or a long press on the notification. You can also continue the conversation without needing to unlock your phone.
iOS 9 will bring Quick Reply to your favorite Messaging apps
Mark Jansen/Digital Trends. Do you want to snap a quick video or record your screen on an Android device? Whether you are taking a recording for friends, showing off your gaming skills, or
Oct 29, 2017 · Your tracking information is now available (if you know where to look). iPhone X Now Shipping - Here's How To Get Tracking Info Early You can read all of my Forbes articles on my profile page.
How To Track Your iPhone X Pre-Order / Shipment / Delivery?
How to create a bootable installer for macOS - Apple Support
At night, no matter how dim my Android's screen gets, it never seems to be enough—especially when I'm in bed. In fact, in pure darkness, the lowest brightness setting on my Android devices end up giving me a headache that keeps me up for hours.
How to Disable Adaptive Brightness on Windows 10 for Maximum
Pinterest recommends using video when your brand has a clear story to tell, such as a D-I-Y project or showing a unique way to use your product. Pinterest's research shows that people watched Promoted Videos 32% longer when there was a storyline that built over time, compared to GIFs or stitched-together stills.
23 Genius Ways To Have The Best Movie Night Ever
0 comments:
Post a Comment