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Here's what the Liberty Engine does on camera: 1. Manual start — spin the rotor 2. Neodymium magnets generate voltage in transformer coils 3. Voltage feeds back to the motor 4. Motor keeps rotor spinning 5. Excess power goes to output sockets 6. Powers a TV, grinder, hair dryer,...

72,010 views • 4 months ago •via X (Twitter)

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How to Resurface Brake Rotors Like a Pro. Pure ASMR . ​Got a brake pedal that feels like a foot massage every time you slow down? It’s probably time to address those warped rotors. Instead of throwing them straight into the scrap bin, you can often give them a second life by turning them on a brake lathe. ​Here is the exact step-by-step process to get that perfectly smooth, true finish: ​Step 1: Mount the Rotor ​Place the brake rotor securely onto the lathe spindle. ​Slide on the correct-sized adapters to ensure the rotor centers perfectly on the shaft. ​Thread on the arbor nut and tighten it down to lock everything firmly in place. ​Step 2: Install the Silencer Band ​Don't skip this part unless you want your eardrums ringing. Wrap the rubber anti-chatter silencer band tightly around the outer edge of the rotor. ​Secure the spring hook. This dampens high-frequency vibrations and prevents high-pitched squealing while cutting. ​Step 3: Fire Up the Machine ​Flip the power switch to the ON position to get the rotor spinning. ​Take a quick second to make sure everything looks centered and isn't wobbling on the spindle. ​Step 4: Position Your Cutting Bits ​Use the handwheels to bring the twin cutting arms into position. ​Align the diamond-tipped cutting bits so they are just clearing both the inner and outer surfaces of the rotor. ​Step 5: Dial in the Depth of Cut ​Carefully adjust the micrometers on both sides to set your depth. ​For a standard scratch pass or light resurfacing, dial it in precisely to take off just enough material to clear the high spots and rust ridges. ​Step 6: Engage the Automatic Feed ​Turn up your speed control unit and engage the automatic feed mechanism. ​Sit back and let the machine work its magic as the cutting bits slowly move outward, cutting away imperfections and restoring a completely flat surface. ​Step 7: The Final Touch ​Once the automatic pass is complete, lightly run a piece of medium-grit sandpaper or a sanding block across the spinning rotor surfaces. ​This knocks down any microscopic ridges left by the bits and creates a clean, non-directional finish for optimal brake pad bedding. ​Step 8: Tear Down ​Shut the power off. ​Use your wrench to loosen the arbor nut, unhook the silencer band, and slide your perfectly resurfaced rotor off the machine.

Chuckling Charlie

90,921 views • 25 days ago

Absolutely wild footage, this is a real world engine failure in a MD500 (Think Magnum P.I. helicopter) over Kauai, Hawaii out on a tour flight. You’ll probably have to watch this a few times but the video starts out with the helicopter under power and then the engine sound goes silent. The beeping you hear is the engine-out audio beep to inform the pilot that engine power has been lost. This maneuver that pilot is doing is called a Autorotation and the way to think about helicopter flight, the engine is turning this big fan (rotor blades) on top of the body and sucking in air from the top and projecting it downward to overcome the force of gravity. When engine power is lost, you experience a reverse in airflow because now gravity takes over and the air flow is coming from the bottom of the main rotor disk. The only thing the pilot can really do is to make sure the rotors keep spinning by changing the pitch of the rotor blades through the use of the “collective” which is a lever next to the pilot’s left leg and it only moves up and down. The pilot has to manipulate the collective during an auto rotation to make sure the blades keep spinning. If the pilot pulls up too much on the collective, the rotor blades will bite too much of air causing a resistance and slow the rotors down. If the pilot doesn’t pull enough collective.. the blades will speed up and potentially cause a catastrophic failure. The other control the pilot has is called the cyclic. This cyclic sits between the pilots legs and and manipulates individual pitch of the rotor blades to tilt the rotor disk aka “big fan” and make the helicopter go forward, backwards, left, right. So essentially in this type of emergency, you have to manipulate the controls in a delicate balance because no matter what, gravity is taking you to the ground because the engine is no longer producing power. The pilot did an outstanding job here given the geography and limited amount of flat terrain to put the helicopter on the ground. Thankfully it sounds like no souls were lost and only one injury according to a news report (see the link below)👇 Of course there is a lot more to helicopter aerodynamics but I’m trying my best to put this in simpler to digest terms. Big thanks to Combat Learjet for sharing and definitely worth a follow!

Thenewarea51

5,846,914 views • 2 years ago