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http://www.rcgroups.com/forums/showthread.php?t=1656651 |
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I am thinking of going the other way with a long wing-span tricopter instead. Two things my Ecilop doesn't do well is portability and yaw issues, both would be resolved by switching to a Tri like my Delrin home build. Maybe switch to carbon rods and beef everything up a bit? http://rcexplorer.se/projects/2012/0...als-tricopter/. Has anyone played with this idea? |
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1. Stability 2. Hope to get more flight time 3. More lifting power I dont understad, why u need tricoper? Sounds like a bad idea. Portabiliti i agree, with yaw tricopter is too quick. This copter is for smooth video. Another thing you will need powerfull motors, but than again for 3 motors to lift such weight is too much. For 6 motors is way much easyer. Y6 will work better. |
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I assume fewer motors is better efficiency, fewer motors and controllers = fewer failures. I don't really believe in redundancy that much, usually things other than motor or ESC's break that still make it come down. I just discovered a main power-lead on my Ecilop that got corroded from soldering and was only hanging on a few strings, no amount of motors would have kept it in the air. I have looked at Y6 but think they are not super efficient either. Tri's give you a super wide view in the front for filming at any pitch angle, up to 120 degree views. Just wondering, not really ready to build one yet. |
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Joined Oct 2012
184 Posts
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I recently built a Y6 and would have loved to adapt it to Ecilop. Sold though to fund this. They may not be technically as efficient due to prop wash but they are known for smooth stability as well as the tri field of view. Looking forward to seeing that hexa fly. ![]() |
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Czech Republic, Hlavní město Praha, Prague
Joined Sep 2012
20 Posts
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Yes APM specifications sound very promising. It has everything. I have one APM 2.5 board for my Ecilop but the setting process is very difficult for me as beginner in PID tuning. So I let the default. Perhaps that is why I am not satisfied with automatic modes behavior. Alt hold and position hold not as good as I expected. I will play with it when have more time.
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1. While setting a quadrocopter output M5 and M6 are not used. I offer to make an option which allows to give to these outputs the signals for a gyro gain control. Signal GAIN for the gyro TILT may have one meaning chosen by the user. Signal GAIN for the gyro axel ROLL has to have two meanings: one for vertical position and another in case of camera skewed forward or backward on the axel TILT. The case is when the cameras gimbal skewed forward or backward it is preferable to lower the GAIN for the gyro of axel ROLL. These three values are to be chosen by user experimentally. For the proper work of all types of the gyro it is necessary that PWM impulses would be submitted in the same order as on the helicopter: first the signal of position, then GAIN signal, then a gap (not less than 10 msec). 2. Add a possibility of more precise linearization for setting automatic compensation. Now we have three parameters set: neutral position, two end points, ratio. I suggest taking a table with 9 meanings for different angles: -40, -20, -10, -5, 0, +5, +10, +20, +40 degrees. So user has to skew the gear frame to the indicated angle and choose the meaning of compensation signal for each position. Program makes a more precise compensation graphic based on the chosen meanings. This function could be as a separate menu point “Expert settings” 3. Produce own external MEMS gyros, which are attached to NAZA controller. That is two little sensors with flexible wires of necessary length set on the gimbals axels. In this case servos are attached directly to controller avoiding using extra gyros. |
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