|
|
|
"I have motor shut downs with slight impacts" Me too
not realy shut down but low PPM value. And it does not seem to be permanent. Unpluging battery solved. After a crash due to a short pull on the nick command followed by a loss of control. A handheld test revieled that my Tri didn't cope with a little kick on one arm. This generates a huge oscillation, several cm with PPM commands that seem to go below the MINTHROTTL. First I tough having a wrong MINTHROTTLE setup. |
|
|
|
|
|
|
Your comments just made me think..........(careful )......... If the end points for the ESC have not been callibrated.....maybe TriWii gives a throttle position below running value??? But then why do I need to disarm and rearm to get the motor to run again......Hmmmmm....time to do some tests.
|
|
|
|
|
|
Markus,
That is a slightly olde version of the gyro whichis now an IDG650. They are two axis gyros, so you should actually have two of them on the board for the Wii+ to have x, y, z control. IDG600 datasheet: http://www.dynacam3d.com/files/bibli...ef_English.pdf Alex' site explains them well: http://radio-commande.com/internatio...copter-design/ Cheers, Jim |
|
|
|
||
|
Quote:
TWBR = ((16000000L / 100000L) - 16) / 2; // change the I2C clock rate to 100kHz TWBR = ((16000000L / 400000L) - 16) / 2; // change the I2C clock rate to 400kHz |
|
|
||
|
|
|
mh, i can only find one idg600 on the board ?!?!
|
|
|
|
|
|
Marcus,
That one is different from ones I have received. On mine there is a IDG650 on each both sides of the board. There is a wide variety of those out there I guess. I'll bet yours will still work fine though Cheers, Jim |
|
|
|
|
|
|
|
|
|
|
|
I have the same board warthox. Mine has the X3500 for the yaw gyro as well. I am having yaw issues but I believe that is related to the vibration and poor mounting. Although I'm sure the 650 is certainly more tolerant to vibrations as a whole so hard to say. If anyone can make it work, it would certainly be you
|
|
|
|
|||
|
Quote:
The two other motors are below than previous point because one motor reaches the max (in this case the front). To keep the right spinning rate difference, the whole motors spinning rate are decreased. It's a ay to still have gyro correction even at full throttle. Your concern is different I think. In fact, even if front motor is full throttle and back motor is at min, it maybe not the case when the quad is in rotation because of the gyro limit. I will try to implement a sort of "super sport" mode where in full stick situation (>1900 or <1100 for instance), gyro compensation is not activated any more so that the max flip rate can be achieved. Quote:
Don't worry, you have just bought an old original Wii Motion Plus. It should work very well too. |
||
|
|||
|
||
|
Quote:
I sacrificed stability and lowered the P gain to half the value i had.... and the results were astonishing! Almost endless flips on both axis possible, easy funnels, much faster jaw and very steep turn. Tried also the fast reverse descent and was incredibly smooth and controlled (10x4,7 props act as better brakes in reverse). Stable mode was even better, with low p gain (4, instead of 8) Tomorrow some friends will shot a new video to show how good this thing is flying now! A bit slower than expected in fast pass (high drag from the bigger props, i think) but at least as agile as warthox one. I am looking forward to a "super sport mode" and maybe at the possibility to switch between two or three different set of PID values, to have a slow but stable machine when you want to do fpv or aerial photography and an extreme acrobatic quad when you want to unleash the beast |
|
|
||
|
|
|
Well I've moved on to a quad board. I tried the tricopter because Alex stated he only wanted to leave it as a tri but now that it has expanded I'm going back.
Frame started tonight, just a couple of cut down towel rods mounted to some plexiglass. Will start mounting the motors and wire it all up tomorrow maybe, as I only work on it at work. The whole thing is rediculously light. I'll be sticking the GoPro underneath and making some landing gear up for it. Not bad for a 16 dollar total investment in the frame. |
|
|
|
|
|
|
|
|