Looked at this thread after a long time. Excellent work! Couple of questions 1) How do you machine the CF? 2) How do you ensure alignment between connectors on the central hub and those on the detachable arm 3) What safeguards do you use to ensure motors point vertically up?
I use a portal milling machine with a HF spindle and 2mm bits.
2) How do you ensure alignment between connectors on the central hub and those on the detachable arm
I placed fitting bores in the upper and lower central plate. The arms have (perpendicular to the prop plane)precision bores. At asssemly time I use bolts to ensure that all motors are aligned.
3) What safeguards do you use to ensure motors point vertically up?
It showed, that even the connectors align the arms very well once adjusted. I use the alignment holes at both ends. In the attachemnt you can see the alignment holes in the center of the brackets. Cheers Christof
Finally the machine is up and flying well. Todays flight:
Mavlink init ADC init ADC task started DIMU: EEprom init DIMU: Reading values from EEprom DIMU: read calibration parameters from EEPROM Battery cells: 4 Radio init GPS init Nav init Command interface init CAN: Found 8 node type ESC Motors init Radio task started GPS task task started ESC32: CAN ID: 1, ver: 2.1.0 ESC32: CAN ID: 2, ver: 2.1.0 ESC32: CAN ID: 3, ver: 2.1.0 ESC32: CAN ID: 4, ver: 2.1.0 ESC32: CAN ID: 5, ver: 2.1.0 ESC32: CAN ID: 6, ver: 2.1.0 ESC32: CAN ID: 7, ver: 2.1.0 ESC32: CAN ID: 8, ver: 2.1.0 Control init Quatos init Quatos license passed Control task started Gimbal init Gimbal combined PITCH & TILT port initialized. Gimbal ROLL stabilization port initialized. Gimbal TRIGGER control port initialized. Gimbal radio PASSTHROUGH port initialized. HoTT Telemetry init HoTT enable ESC32 monitor AQ S/N: 36373532-3331470B-00360034 Mavlink SYS ID: 246 SYS Clock: 168 MHz 8639/9008 heap used/high water 33232 of 40960 CCM heap used Run task started AQ FW ver: 7.0 - EXPR rev403 b1762, HW ver: 6 rev1 Disarmed HoTT Telemetry task started Initialization complete, READY. GPS: trying new baud rate Waypoint recorded AQ FW ver: 7.0 - EXPR rev403 b1762, HW ver: 6 rev1 RTC set: 2014-06-23 18:18:48 UTC Armed Altitude Hold engaged Home position set Position Hold engaged Returning to home position Home position set Returning to home position Returning to home position Returning to home position Returning to home position Returning to home position Returning to home position Disarmed Set new reference heading for Heading-Free mode Armed Altitude Hold engaged Position Hold engaged Now in locked Heading-Free DVH mode Now in normal DVH mode Disarmed config: Parameters saved to flash memory. Armed Altitude Hold engaged Position Hold engaged Disarmed Waypoint recorded
teramax wrote:yea Chris, flies and looks beautiful but the motors sound like breaking in pieces in the moment. Is it just the video?
Mäx There is a little nervous sound when yawing hard in real life too. Maybe @ MF I get some tuning help to get rid of that. But otherwise the sound is fine for a 5Kg machine and 13" props.