I recently built a Hoverthings Flip FPV quad that is using the APM2.5 (v3.01)with the external mag/compass. The specs on this build are:
Tiger Motor MN 3110-26 470KV 3-6s Motors
Tiger Motor 30A Pro 400hz OPTO 2-6s esc's
Tiger Motor Carbon Fiber 10x4 bolt on prop's
Turnigy 9X with er9x firmware
This setup is running on a 6S lipo, and I am using a CC 10amp BEC to provide the apm with power.
I have done all the calibrations, compassmot was 3%, vibration levels are good.
This thing flys great, plenty of power, very responsive, however I am having one problem and that is trying to maintain and sort of hover in stabilize mode.
What happens is I am at half throttle and my quad will want to ascend slightly most of the time, when I ever so slightly lower the throttle it will start to descend. I have also tried setting different throttle expo settings which does not make any difference that I can see.
I am looking into the t-motor esc's, maybe something there with the default settings? The specs on them are:
Output: Continuous 30A, Burst 40A up to 10 Secs.
Input Voltage: 2-6 cells lithium battery
This is the Optical version !
Size: 45mm (L) * 24mm (W) * 11mm (H).
Extreme low output resistance, super current endurance.
Multiple protection features: Low-voltage cut-off protection / over-heat protection / throttle signal loss protection.
Start modes: Normal / Soft / Super-Soft, compatible with fixed-wing aircraft and helicopters.
Throttle range can be configured and is fully compatible with all transmitters currently available.
Smooth, linear and precise throttle response.
I have to get some logs together but I do know that in either alt hold or loiter mode, she holds steady great, no up and down, just steady.
Is there anything else I can check for ?