Out of curiosity why? The benefits of the new v2.5 is so that it works with 6S and new MK speed controllers which you don't use.
G'Day Howard, There is voodoo somewhere in the setup, but I'm not sure where. I have now flown with the new 2.02 firmware, and not seen improvements. The navigation is also off, where by with PH engaged, the copter flies 15 degrees off. Compass calibration, accelerometer calibration and weight and balance checked. This happens on two identical copters. The only thing I have not done is try programming the free fly Escs or adjusting the pwm frequency and ranging on the abusemark I2C converter. The position hold is stable, just not straight. At the moment I'm unable to achieve any real heavy lifting. Cheers Chris
Chris, other than GPS position hold performance have you seen any other undesirable behavior? Overall, how does the copter fly manually? Do you feel any change from your previous setup using flt ctr board 2.1? Why are you not able to achieve any real heavy lifting? Is this new setup producing less power? Thanks!
G'Day Howard, In manual mode the copter flies really well, provided it isn't loaded up above about 8500grams. After that it just get sluggish and motors and Escs start to get very hot. Unfortunately there is no data logging to help with the esc or motors with the converter option. Cheers Chris
IF your CG is off your copter can do that very easily at that weight. Hook up an Xbee and check your CG. If you need help doing it let me know I'll be glad to help.
G'Day Dave, Thanks, I have the MK 232 wireless adapter on board, and it's showing balance to reasonable, it is currently blowing 70km/h here today, but I'll get a screen shot of what I am seeing on the balance window as soon as this wind abates. G'Day Howard, Running MT-3515 400kv motors and tiger 15x5.5 carbon props Cheers Chris
G'Day Dave, Here is the video of the balance, the copter took off, and hovered, I then rotated it through 90 degrees four times, and landed. Wind was between 17-20km/h from the north password: cog
Chris I looked at the video and it seems like its good. I wish I could be more help. Your results just don't add up and you shouldn't burn up multilple motors as soon as you go over a specific weight. I know you are over the efficiency range of the motors but It shouldn't just be like an on/off switch. Short of changing motors or swapping ESC's I wouldn't know where to begin. On one hand I think you should change motors because they are out of your GAW range but on another hand would you just burn new expensive motors up if the problem isn't the motors? I would reach out to one of the guys that has used this combination successfully like Gary, Brad, or Howard. I"m not sure which motor control set Brad or Howard use but Gary uses Free Fly ESC's.
Thanks Dave, I'm looking at alternate Flight Controllers that don't require a converter, and have larger motors and props on order so will see how that helps.
G'Day Dave, I'm in a different state to the copter at the moment, Wednesday I will try it out, I hope that simple fix works (stupid error on my behalf though) I have an alternate flight controller on the bench to try as well, that doesn't use an i2c converter and the U7's are shipping tomorrow, so its going to be a busy couple of days.