"Hello Cory,
Indeed, assessing the real performance of the rig is why am designing this, to get a real life configuration, and see the advantage(s) in this range of dimensioning (Reynolds number).
Project is going well, taking advantage of 3D…"
Coptaire's Page
Latest Activity
Cory Easom commented on Coptaire's blog post Propeller Shroud Project"Coptaire. You go man! I'm an airflow guy myself, and a believer. So many variables. Forgive me if I'm not technically accurate on all of this as I'm going from memory and my own theories. I'm guessing +/-…"
Coptaire posted a status"The ducted fan has entered 3D printing stage. I made a specific design allowing to print it as a multipart kit."
Humbird commented on Coptaire's blog post 3D printed Propeller Shroud Kit"I'm excited as well. Sign me up when this is ready."
Coptaire commented on Chris Anderson's blog post GPS loss plus faulty inertial code caused fatal Camcopter crash"Navigation aid, GPS being of one among others, is not concerned by aircraft piloting.
Aircraft piloting, or vector management, apparently assisted from the ground.
All kind of aircrafts were already flying well before GPS became available.
Talking…"
Coptaire commented on naish88's blog post Tracking antenna"@George
900mHz and 5.8gHz have very different propagation pattern, one being quite 'omni' (900) and the other being "line of sight" (5.8). For this reason, this wide band antenna you would wish is hardly conceivable.
We suggested…"
Coptaire commented on naish88's blog post Tracking antenna""24dBi High gain dish antenna" for which frequency range?
For a ground station, often an omnidirectional is combined with a directional, switched by diversity, so on top of a moving vehicle, the same combination of directivity would seem a…"
Coptaire commented on Scott Thompson's blog post Implementing ESC Fail Safe"@Ellison.
Apparently, the APM is in quad config coax, X8. But, only 4 motors are used, the 4 remaining are like a backup. A quad with upper props spinning, and bottom ones unpowered. The 2 pololu boards are configured to react differently, based on…"
Coptaire commented on Gary Mortimer's blog post The bar has been raised"Who knows, it could become a remote-controlled Open Source project!"
Coptaire commented on Gary Mortimer's blog post The bar has been raised"The bar has been raised, from an AP multirotor point of view.
The bar has been lowered, from an heli crew point of view.
"
Coptaire commented on Rui Manuel Cravo Marques's blog post Multicopters are growing into real lifesize !!!"Crazy, as usual with these lethal prototypes:
"
Steve Warren commented on Coptaire's blog post 3D printed Propeller Shroud Kit"I love this whole world of print your own designs. Wow I feel like a kid in a candy shop. I am building my first quad from stuff other people designed but now I am going to feel compelled (once I finish quad #1) to start working on my own design for…"
Ellison Chan commented on Coptaire's blog post 3D printed Propeller Shroud Kit"I think if you print the shroud with 2mm thickness, you should have no problems. But if you add reinforcement ridges, you could get away with 1mm thickness."
Coptaire commented on Coptaire's blog post 3D printed Propeller Shroud Kit"At this scale, no problem of rigidity! The shroud could almost contain your printed quad."
Ellison Chan commented on Coptaire's blog post 3D printed Propeller Shroud Kit"Coptare, yes more than rigid enough. I'm still getting the AC software tuned for flying this micro sized frame, but here's a video of it flying with TREX 450 tail booms for arms with the same hub and Shapeways printed motor…"
Coptaire commented on Coptaire's blog post 3D printed Propeller Shroud Kit"@Ellison
Great price! But does frame rigidity is enough? when full equipped and flying?
Beyond protective aspect, this shrouding could reduce the blade tip vortex (with minimized gap), the vanes are equivalent to a propeller with a null speed. The…"
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Coptaire's Blog
3D printed Propeller Shroud Kit
Posted on April 7, 2012 at 8:00am 14 Comments 7 Likes
I needed 3D printing capability to develop my Propeller Shroud Project
So, I conceived and print another kind of propeller shroud, and I 3D printed it. It is a kit made in ABS, consisting of 9 parts, to be glued around the hub, and screwed for the outer parts.
This shroud can be used as a blade protection, and could interact slightly with the airflow. Curious…
Continue Propeller Shroud Project
Posted on May 30, 2011 at 1:00pm 23 Comments 7 Likes
Since several months, my interest in shrouded propeller is increasing, and I started to prototype a shroud.
What are the advantage of a shrouded propeller?
We can list 3 main points:
1 - Increased thrust, compared to the same unshrouded prop. (Possible gain 30% to 100%)
2 - Propeller protection. This adds security and allows to "touch" a wall, by example.
3 - Reduced…
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