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Old 08-20-2013, 11:00 PM   #241
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Quote:
Originally Posted by yellowihss View Post

You got it backwards.

Multicopters are all variable speed, and fixed pitch. Thats the beauty. less moving parts.

Someone just made one with constant speed, and variable pitch. Way more complicated, but = inverted flight, and a whole new world of stunts.
That one had individual motors on each boom which I haven't seen before. That would allow both rpm and pitch adjustment on all 4 rotors. I can't imagine how awesome these things will be in a few years.
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Old 08-21-2013, 12:14 PM   #242
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Oh, duh... I thought it was a main rotor/ tail rotor micro heli, lol.
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Old 09-04-2013, 06:29 PM   #243
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Whats cool about CP on a multirotor is someone finally made it work, and work well like a CP single rotor... It can fly inverted and do tic tocs and all that crazy 3d stuff. Too bad its so many money, and I'm quite sure he built the only controller that works with it yet... One has to imagine that this will spawn others though.

Stingray | CurtisYoungblood.com

for you tl;dr types skip to 1:00 in on this video:


I think if this will scale up it will be awesome, single motor so nitro and maybe gas become an option... I don't fully understand how yaw works though, I guess its the same as a normal quad, but I thought that effect was a result of speed. Also, there are on board videos... Hearing a multirotor being run off a governor is very strange... i.e. the motor runs at a constant speed like a CP heli, which is nice since you don't get all the warbles from the dissonance of 3+ motors spinning at different speeds. But still feels strange when watching the video.
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Old 09-04-2013, 08:53 PM   #244
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A quad does control yaw by varying rotor speed. It's the gyroscopic reaction force that causes the yaw. I bet two of the rotor heads gimble side to side.
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Old 09-06-2013, 12:14 PM   #245
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Toy helicopter lops top of man’s head off | New York Post
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Old 09-06-2013, 12:23 PM   #246
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Yeah, bashing yourself in the dome with a 700 series nitro heli has a tendency to do that. I'm sure someone will pass a law to protect us from ourselves. Sucks for the dude and his family though.
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Old 09-06-2013, 03:18 PM   #247
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So I picked up one of the $15 Flip MWC Flight Controller 1.5 because everyone keeps telling me "Bro, you really need to stop using the KK2.0. Get something multiwii based, you will love it! Plus its super cheap, only $15." So I also bought the Bluetooth adapter, with dreams of PID tuning from my Nexus.

Big *** mistake. I already have a burning hatred for this thing. It suffers from the same problem every open-source hardware/software platform has: Too many versions and **** poor documentation that only hardware nerds understand. I have a feeling I'm eventually going to soak this thing in vodka and burn it in a trashcan.
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Old 09-06-2013, 05:46 PM   #248
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Multiwii is great, you is crazy.
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Old 09-06-2013, 05:49 PM   #249
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Some people just need to learn the hard way. Sadly for many the price is too high.
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Old 09-06-2013, 05:54 PM   #250
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Quote:
Originally Posted by Tw34k View Post
Multiwii is great, you is crazy.
Oh, don't get me wrong, I'm sure it is great. I'm also sure its absolutely my fault for not wanting to read the documentation.

Me -> <- Open Source
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Old 09-06-2013, 07:41 PM   #251
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Send it to me
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Old 09-06-2013, 07:57 PM   #252
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I figured out how to make it talk to my phone, so maybe I'll keep it around a little longer
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Old 09-06-2013, 08:45 PM   #253
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I actually just wound up taking my HC-05 DIY bluetooth adapter off since I hardly even use it. I'm not sure what you're personally struggling with but I could help you configure your setup code if that's what you're having issues with.
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Old 09-07-2013, 12:27 PM   #254
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New flight control board coming from 3D Robotics. They ditched the ATMega for an ARM.

3DR Pixhawk - 3DRobotics Inc



Features

Advanced 32 bit ARM Cortex® M4 Processor running NuttX RTOS
14 PWM/servo outputs (8 with failsafe and manual override, 6 auxiliary, high-power compatible)
Abundant connectivity options for additional peripherals (UART, I2C, CAN)
Integrated backup system for in-flight recovery and manual override with dedicated processor and stand-alone power supply
Backup system integrates mixing, providing consistent autopilot and manual override mixing modes
Redundant power supply inputs and automatic failover
External safety button for easy motor activation
Multicolor LED indicator
High-power, multi-tone piezo audio indicator
microSD card for long-time high-rate logging

Specifications

Microprocessor:

32 bit STM32F427 Cortex M4 core with FPU
168 MHz/256 KB RAM/2 MB Flash
32 bit STM32F103 failsafe co-processor

Sensors:

ST Micro L3GD20H 16 bit gyroscope
ST Micro LSM303D 14 bit accelerometer / magnetometer
MEAS MS5611 barometer

Interfaces:

5x UART (serial ports), one high-power capable, 2x with HW flow control
2x CAN
Spektrum DSM / DSM2 / DSM-X® Satellite compatible input
Futaba S.BUS® compatible input and output
PPM sum signal
RSSI (PWM or voltage) input
I2C®
SPI
3.3 and 6.6V ADC inputs
External microUSB port

Power System:

Ideal diode controller with automatic failover
Servo rail high-power (7 V) and high-current ready
All peripheral outputs over-current protected, all inputs ESD protected

Weight and Dimensions:

Weight: 38g (1.31oz)
Width: 50mm (1.96")
Thickness: 15.5mm (.613")
Length: 81.5mm (3.21")

This sounds like it will be a pretty impressive controller, especially for the money.
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Old 11-22-2013, 10:33 AM   #255
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Anybody still flying?
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Old 11-22-2013, 10:41 AM   #256
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I havent been flying much. Several weeks ago I went out and flew a bit at a park, ended up crashing into a tree with no damage.

Lemme see if I have any new videos
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Old 11-22-2013, 01:02 PM   #257
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I finally got all my FPV shiza in, then I trashed my wood beater quad, then HobbyKing never restocked the replacement motors I needed, then I stopped flying.

I should check to see if they have them in stock... now that its been like 6 months
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Old 11-23-2013, 10:44 PM   #258
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I put a brushless gimbal on my fixed wing, makes for some awesome footage:


I also documented the first hemp harvest in the USA in almost 60 years:
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Old 11-24-2013, 02:42 AM   #259
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Love it.
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Old 11-24-2013, 06:13 PM   #260
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Seriously considering putting the FPV stuff on my SuperCub, stop posting videos like that lol
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