Hi, I fixed my F450, replaced the bad gps module and I was looking forward to flying again. Then I remembered something. I had never throttle calibrated the esc's.
Naza M V1 with 3.12 fw and Maytech 40 amp esc's preflashed with SimonK.
The quad flew well with 3.12 from the start. In tests with the props off every function worked perfectly the way it should. Now I wish I had never calibrated the esc's. The quad is all messed up. Believe me I googled and searched for discussions of the issue for hours today. Learned some things but the quad is scaring me now. I'm afraid to fly it.
1. CSC arming no longer works the way Dji intended. The motors will start but I have to hold both sticks to a bottom corner and then move throttle up past 50%.
2. Sometimes the motors don't start all at once. They will if throttle is high enough, but motor response to throttle input has gone haywire. At least it seems
unpredictable and sluggish.
3. The response to throttle input is sometimes fast and sometimes not. If set at a hovering RPM the motors will sometimes slow down on their own without touching the stick and sometimes they'll slowly speed up. All without touching the stick. I can't fly it with it doing that. I have to have control over the craft.
4. In testing with props off, turning RTH on completely disabled throttle, rudder, aileron, and elevator. Flipping the switch back to off didn't return control. I was
seeing a flyaway. Turning off RTH and flipping to either ATTI or MAN returned control. Then I could return to GPS mode. I want to look at that again.
5. What bothers me most is that the motors rpm's have become unpredictable in response to throttle input. Sometimes I can't get high rpm's in GPS. Sometimes I do.
I've seen some workarounds. For instance increasing idle speed in Assistant. I calibrated the esc's again and recalibrated the compass and then ran an advanced IMU calibration. Did that twice. The quad seemed to calm down. I read that the craft will fly just fine after takeoff and I do hear the motors compensating when I move it around.
My setup is mainstream and common. I know I can't be the only flier who has found his nose up against the same brick wall.
Does anyone have any thoughts?
Rob :dejection:
ps of course I know I can put it back the way it was by replacing all the esc's but that would be too easy wouldn't it?
Naza M V1 with 3.12 fw and Maytech 40 amp esc's preflashed with SimonK.
The quad flew well with 3.12 from the start. In tests with the props off every function worked perfectly the way it should. Now I wish I had never calibrated the esc's. The quad is all messed up. Believe me I googled and searched for discussions of the issue for hours today. Learned some things but the quad is scaring me now. I'm afraid to fly it.
1. CSC arming no longer works the way Dji intended. The motors will start but I have to hold both sticks to a bottom corner and then move throttle up past 50%.
2. Sometimes the motors don't start all at once. They will if throttle is high enough, but motor response to throttle input has gone haywire. At least it seems
unpredictable and sluggish.
3. The response to throttle input is sometimes fast and sometimes not. If set at a hovering RPM the motors will sometimes slow down on their own without touching the stick and sometimes they'll slowly speed up. All without touching the stick. I can't fly it with it doing that. I have to have control over the craft.
4. In testing with props off, turning RTH on completely disabled throttle, rudder, aileron, and elevator. Flipping the switch back to off didn't return control. I was
seeing a flyaway. Turning off RTH and flipping to either ATTI or MAN returned control. Then I could return to GPS mode. I want to look at that again.
5. What bothers me most is that the motors rpm's have become unpredictable in response to throttle input. Sometimes I can't get high rpm's in GPS. Sometimes I do.
I've seen some workarounds. For instance increasing idle speed in Assistant. I calibrated the esc's again and recalibrated the compass and then ran an advanced IMU calibration. Did that twice. The quad seemed to calm down. I read that the craft will fly just fine after takeoff and I do hear the motors compensating when I move it around.
My setup is mainstream and common. I know I can't be the only flier who has found his nose up against the same brick wall.
Does anyone have any thoughts?
Rob :dejection:
ps of course I know I can put it back the way it was by replacing all the esc's but that would be too easy wouldn't it?
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