"The gimbal is brilliant! Well done.
How close is your hand to the prop when launching? "
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Muhammad Al-Rawi
- Male
- Columbia, MO
- United States
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Muhammad Al-Rawi's Page
Latest Activity
Muhammad Al-Rawi commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"If I'm not mistaken, when you power up the controller, the uC pulses outputs for a very brief moment, not intentionally by software, it just does it for some reason. If your ESCs are armed when this happens and this pulse falls somewhere in…"
Muhammad Al-Rawi commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"Ouch. I hope you have a smooth and speedy recovery!
Checklist is definitely a must. Can't tell you how many times I've bitten the bullet for trying to get in a quick flight. "
Muhammad Al-Rawi commented on Alejandro Martin Pirola's blog post 3D printed quadcopter with detachable arms - Part2: Flight test"Your battery clip is brilliant!
Nice to see it up in the air. Great job.
How much does it cost in material to print the whole thing?"
Muhammad Al-Rawi commented on Chris Anderson's blog post Sticky drone perches on ceilings"My quad is stuck to the ceiling. Now what.
Will be interesting to see how they peel themselves off. "
Muhammad Al-Rawi commented on Jan's blog post Lipo powered telemetry"If you don't need the high discharge rate and are worried about over charging/discharging, you could simply solder a couple cell phone batteries together. They've got their protection circuits neatly integrated. I use this method all…"
Muhammad Al-Rawi commented on Bernardo M. A.'s blog post Homemade Plane for GoPro: foam + depron"Does seem to be doing some high alpha.
Very cool, though. Currently working on a plane myself using XPS and foam-core board. "
Muhammad Al-Rawi commented on Bernardo M. A.'s blog post Parachute tests with a multirotor"That looks very good, Randy. The question will be how it performs when the quad is spiraling :)"
Muhammad Al-Rawi commented on Alexey Kozin's blog post arduplane Automatic flight to alt 2414m"Gosh I wish I had a shed/greenhouse/carport like that... "
Muhammad Al-Rawi commented on Alexey Kozin's blog post arduplane Automatic flight to alt 2414m"Very well put, Andrew. "
Muhammad Al-Rawi commented on Bernardo M. A.'s blog post Parachute tests with a multirotor"usually you'd use some tissue-like material between the rocket and parachute to prevent burning it.
Haha, don't know if I'd use a CO2 cartridge. Those things pack quite a punch. "
Muhammad Al-Rawi commented on Bernardo M. A.'s blog post Parachute tests with a multirotor"I would imagine, if you had the cord long enough to mostly clear the frame (considering it will be tumbling around in its descent) you could avoid most tangling. "
Muhammad Al-Rawi commented on Bernardo M. A.'s blog post Parachute tests with a multirotor"Good point, Gary. Now that I think back to it, those things did take awhile to light...
Maybe pack the chute in a tube with a loaded spring in the back? Some sort of servo latch mechanism to let the spring go. To an extent kind of…"
Muhammad Al-Rawi commented on Bernardo M. A.'s blog post Parachute tests with a multirotor"Wish I had this when I was learning to fly :) Well done!
I'm sure there's a way to reliably fit it in a capsule. I'm thinking something like the way those model rockets backfire their chutes out. I'll have to…"
Muhammad Al-Rawi commented on Bernardo M. A.'s blog post Going high with the Octocopter: MPNG 2.7, very stable!"Neill is correct. Motor price is not a measure of reliability. I've had better luck with motors 1/3rd the price of the ones I had on my quad.
Take care of your props and you'll never have a failure. "
Muhammad Al-Rawi commented on Adam AKAV8R's blog post X-8 Maiden Flight - Prop Strike - Crash (SafetyTip)""Lawn dart" I like that terminology. Definitely done that a few times.
That's a horrifying way to launch.
Just curious, is it possible to toss it by the tip like a smaller wing? Or is it too heavy? "
Profile Information
- About Me:
- Photographer, Electronics enthusiast.
- Tell us a bit about your UAV interest
- Flying machines amaze me. I'm really interested in how A military device has become a civil development. I've been following this blog for a while now, and finally had the opportunity to experience and take part in it.
- Hometown:
- Columbia MO
Comment Wall (3 comments)
- At 1:34pm on June 14, 2012,
Daniel Godwin said… So you have hexacopter experience? I'm working on one in a lab at Mizzou and trying to get the ESCs to cooperate. I'd love some insight.
- At 1:51pm on June 14, 2012, Daniel Godwin said…
Great. Are you at the University or elsewhere? Are you pretty familiar with Mission Planner and the like, as well?
I can get them to calibrate, I think, but I can't arm them.
- At 2:14pm on June 14, 2012, Daniel Godwin said…
Just starting. This is pretty new to me. I'm looking to use it as a cheap remote sensing platform. If I haven't figured it out by then, I'd love to meet with you and see what you can tell me. I'm not sure if you're in school or working or what, but if you're looking to get involved with a research project, we're a neat lab and always looking for more folks.
(Realized I posted that on my wall, not yours...)
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Season Two of the Trust Time Trial (T3) Contest has now begun. The fourth round is an accuracy round for multicopters, which requires contestants to fly a cube. The deadline is April 14th.A list of all T3 contests is here.
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