Developer

ArduCopter (TBS Discovery Style)

3689498201?profile=original

Team-blacksheep have very nice frame for DJI-NAZA with some fancy PDB, but I don't have NAZA and I wanted some modification to mount APM2/2.5, so here is my version of that frame, no fancy PDB and PCBs, just black fiberglass :)

If you do have DJI NAZA go get that frame right NOW !

3689498526?profile=original APM2.0 with 90° pins fits under the top plate with analog and telemetry pins exposed.

3689498500?profile=original3689498413?profile=original

APM2.5 with ublox GPS.

3689498568?profile=original

3689498428?profile=original

Set the LED_MODE parameter to 9, It will slow blink when disarmed, solid armed, fast blink + beep on low battery.

3689498602?profile=original

The CG and the APM location moved a little bit, but it can fly as regular X quad. (don't pull back too much)

I just changed the AP_MotorsQuad.cpp X frame set-up to:


add_motor(AP_MOTORS_MOT_1, 55, AP_MOTORS_MATRIX_MOTOR_CCW, AP_MOTORS_MOT_2, 1);
add_motor(AP_MOTORS_MOT_2, -125, AP_MOTORS_MATRIX_MOTOR_CCW, AP_MOTORS_MOT_1, 3);
add_motor(AP_MOTORS_MOT_3, -55, AP_MOTORS_MATRIX_MOTOR_CW, AP_MOTORS_MOT_4, 4);
add_motor(AP_MOTORS_MOT_4, 125, AP_MOTORS_MATRIX_MOTOR_CW, AP_MOTORS_MOT_3, 2);

Setup

Motors: Tiger MS2212-13 980KV

ESC: jDrones 18A (Flashed with SimonK FW)

I really like the 10X5 Graupner e-props (or new Carbon 10X5 e-props) with 4S 3000mah lipo, after some fine-tuning its very sharp fly.

Here some raw clips from Arducopter 2.8.1 tuning flights:

BTW Jani from jDrones (that where I CNC all my custom frames ;) ) has put together fancy RTF kit, so check that one out.

EDIT:

The top outside hols for the arms are ~0.5mm off, I think so chek it before cuting.

ARDU_DIS_APM25.DXF

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Comments

  • I got about the same frame but want to fly it proper, is the maybe a custom firmware available for this setup?

  • Uh, I really am an idiot! I measured the angles between the arms and the longitudinal axis (the red line in your drawing). This is obviously wrong...

  • Developer

    @Markus, the angles are for the center of APM as it mounted on the frame.

  • Perhaps I'm an idiot but I get quite different angles from my TBS Disco than 55° and 125°. Especially for the first value which is at my Disco around 70° (the second around 129°). I cannot measure it super accurat but I am sure that quite more than 55°. Strange...

  • Developer

    Normal 2.9 quad is working just fine with it and there is also alternative HEX file available on jDrones/jDoc site soon. We try to keep custom firmwares available for this frame.

  • Developer

    @Isaac, you can use it with normal X quad settings.

    Video of 2.9 on that frame, all default, in X quad mode, unbalanced epp props

      

  • I'm thinking that this frame looks pretty impressive.
    http://www.valuehobby.com/multicopters/frames/spider-quadcopter-1.html

  • It it necessary to change the code to get this frame to work or would it work with the default V quad settings?

  • Looks good.  I too am working on a clone version of the TBS Discovery, only mine was a bought clone and Im using multiwii on the Flyduino Mega Board, GY-86, GPS, er9x flashed TX, SimonK flashed ESC, all my software is open source! My Quadcopter Build

  • Nice job, and thanks for sharing the DXF. Are you going to try AC2.9? I'm curious how well 2.9 works with hard mounting.

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