Want an easy-to-use tool to see how vulnerable you are to Meltdown and Spectre? Tired of "Jello" videos from your drone? Feel like building the 2018 Alien-X? Need a soda-can sized, Android-powered pico projector will full-size features? -- Padre and Jason have the answer to all of these questions on this flu-ridden episode of "Know How"!
- Written in Assembly by Steve Gibson
- Only 125k (would have been much less except he had to include a picture to make it a legit Win10 app)
- NO INSTALLATION (Runs directly from the executable)
- Will examine your vulnerability to both Meltdown and Spectre
- MAY cause false positives with AV suites b/c it allows you to enable/disable protection (malware behavior)
Unbalanced props are the #1 reason for "jello" video.
- They can also cause premature wear on the multi-rotor's motors and frame
- Not to mention that the excessive vibration can cause innacuracies in the FC's sensors
Spinning at a few thousand times per second can turn even a small imbalance into a major vibration
So what we need to do is to balance the prop so that weight is as equally spread around the blades (and hub) as possible
Tools and Materials:
- Assemble the Prop Balancer
- Place the prop balancer on a level surface, then level the prop balancer with your bubble ruler.
- Mount the prop on the beam, making sure that it's snug in the holder. Turning the prop should turn the beam and vice-versa. -- If the prop isn't properly secured, it will wobble, which will invalidate the balancing.
- Place the beam between the arms of the balancer, making sure that it freely turns.
- Spin the prop/beam assembly and watch for wobbles. If it wobbles, the prop isn't properly secured.
- Set the prop so that both blades are equal distances from the table surface, then release.
- The heavier side of the prop will fall.
- Add tape to the lighter blade, or sand the heavier blade. -- Repeat the test.
- I prefer to add no more than 2 pieces of tape, always on the underside of the blade.
- When you can position the prop in any position and it stays in that position, then it's balanced.
- It's possible that the HUB is unbalanced. If so, you'll notice that the prop tends to balance with the heavier side of the hub down.
- If that's the case, you can sand the heavier part of the hub.
- Power up Craft
- Enter "Receiver Test" on Flight Controller
- Test all inputs. Reverse channels and/or swap cables as needed
- Set Subtrims
- Set motor layout to "QuadCopter X"
- Calibrate ACC
- In "Mode" set "Self-Level" to "AUX"
- In "Self-Level" set P to 30 and I to 20
- Check motor rotation. Flip pairs as needed
- Calibrate ESCs
- Install props
- Balance Center of Gravity
- Hovering above the ground effect
- Nose Out
- Circle of Death
- Nose In
- DLP 100 Lumen (30,000 hours)
- 854 x 480 Resolution
- 4 Hours Battery Life
- 360 Sound (has Bluetooth conenctivity)
- Can be controlled via a phone)
- Android 7.1
- 1 lb
- Input: Wireless, HDMI, USB, Bluetooth
- Up to 100" size (Really best around 30")
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Thanks to CacheFly for the bandwidth for this show.