Author Topic: My Mavic 4.1  (Read 1756 times)

Offline stado65

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My Mavic 4.1
« on: May 06, 2020, 09:46:47 AM »
Hi,

I finally managed to make my own build of the CdRsKuLL incredible design :D
I started more than one year ago and now it flies !

I still have to add a camera and a VTX.

Here are the characteristics :
2212 980 kV motors
BlHeli_S 20A ESCs into the arms
8331 folding propellers
Omnibus F4 Pro with INAV 2.4.0
BN 880 GPS + Magnetometer
R1 D16 SBUS Receiver with SmartPort telemetry
3S 2200 mAh battery
WS2812 leds
Jumper T16 transmitter with INAV Lua Telemetry

« Last Edit: May 17, 2020, 11:40:31 AM by stado65 »

Offline stado65

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Re: My Mavic 4.1
« Reply #1 on: May 06, 2020, 09:48:41 AM »
More photos

Offline stado65

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Re: My Mavic 4.1
« Reply #2 on: May 13, 2020, 11:06:56 AM »
I added front white leds and rear status leds (GPS & Battery).
The INAV LUA script on the Jumper T16 is absolutely marvellous !

Offline stado65

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Re: My Mavic 4.1
« Reply #3 on: May 14, 2020, 10:30:19 AM »
I am a bit confused about which camera and gimbal to install.
I'm thinking of a 2-axis BGC 2.2 board with 2204 motors and a Hawkeye Firefly 2 camera.
Any advice ?...

Offline stado65

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Re: My Mavic 4.1
« Reply #4 on: May 16, 2020, 05:03:27 PM »
It flies well  :)
« Last Edit: May 17, 2020, 11:45:23 AM by stado65 »

Offline Bioethical

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Re: My Mavic 4.1
« Reply #5 on: May 27, 2020, 04:15:39 AM »
Amazing Job, Congratulations!

Offline stado65

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Re: My Mavic 4.1
« Reply #6 on: May 27, 2020, 08:43:23 AM »
Thanks Bioethical !
The job of CdRsKuLL is really amazing, I only slightly modified a few parts in order to adapt them to my electronics.
It flies very smoothly and silently however it lacks a stabilized camera :(

Offline j87

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Re: My Mavic 4.1
« Reply #7 on: May 28, 2020, 01:59:53 PM »
Hi stado65, well built!

Did you have to make any adjustments to fit the ESCs into the arms? Are the 20A's a good match for the 980kv motors?

Is it possible to just skrew on the 8331-props directly onto the motors?

Offline Bioethical

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Re: My Mavic 4.1
« Reply #8 on: May 29, 2020, 02:14:09 AM »
Be careful if you have to drill the center of the props do it very patiently and in straight fashion; use the proper drill bit size.
The ESC should be the smaller ones in the market, 18AMP would be good.

Offline stado65

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Re: My Mavic 4.1
« Reply #9 on: May 29, 2020, 08:02:33 AM »
Hi,

Regarding the arms, I printed the ones adapted to integrate ESCs without any modifications (STL available somewhere in this forum).
I tried 30A ESCs but they were too big. FVT Littlebee 20A are OK.
As Bioethical said, 20A is fine. The motors specs are 10.6A max @ 11.1V. It is not a racer, you are seldom full throttle  ;)
For the record, I measure around 7A total consumption while hovering (less than 2 Amps per motor).

For the props, I did not drill anything. I bought chinese Mavic 2 folding props. I removed the small axes retaining the blades.
Then I 3D printed a central part adapted to my motor's shaft and reinstalled the blades on this part with small screws.
I can post a close-up if needed.
« Last Edit: May 29, 2020, 08:13:22 AM by stado65 »

Offline j87

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Re: My Mavic 4.1
« Reply #10 on: May 29, 2020, 10:59:03 AM »
Thanks for your replies guys!

Replacing the blades-holders themselves is quit smart, I'll look into that. Thanks for the tip!


// Edit:
In case someone is looking for the adjusted STLs as well: https://diyrc.co.uk/mavic-build-diaries/mavic-f3-v4-1-escs-in-legs/msg3281/

https://drive.google.com/open?id=0B39XsJ4GF1aVWDQzUGJrTmJteVU

Both STL's should be in there - just mirror the arms in your slicer for all 4 :)
« Last Edit: July 05, 2020, 01:49:30 PM by j87 »