Tarot FY 680 and a bit Hexacopter

[pk-surfing]

Totally impressed by the focus and dedication Marcin and Coyote are showing with this gear, fingers crossed the first power on tests give results you want.... :)

PK

[Coyote]

Motor No.1 rewound, was a ballache to say the least :)

Not sure if it works, on the meter is reads correct 10.3 ohms over two phases, on a normal ESC it runs very very slow, so the windings have lowered the KV. But no idea how to test if its going to work until I have a controller in my hands

[Coyote]

So the carbon turned up, note to self 3mm is far too overkill :)

Anyway, with the motors rewound I cracked on with the Gimbal :

1) Made the Gopro camera base.
2) fitted a bearing to the camera mount
3) Fitted the rewound motors
4) Started the carbon braces



The base is cut for connection to the Tarot, I need to fix dampers to that and the other box section, maybe tonight maybe tomorrow

[Coyote]

Base plate for mounting to Hex done.

The plate will also be used to mount the brushless gimbal controller too.

I used four of the Tarot dampers kindly supplied by DakarSG :)

[Dizzy]

Base plate for mounting to Hex done.

The plate will also be used to mount the brushless gimbal controller too.

I used four of the Tarot dampers kindly supplied by DakarSG :)

Thats looking the biz coyote nice job  :D

[wgt40w]

Coyote - great work as usual, but

I suggest you consider bracing the approx. 45 degree bend on the alum sq. section - from behind pan motor up to Base Plate. Any vibration and the weight of the camera will put a great strain on this bend and an even greater strain where the alum sq section meets the base plate.

[Coyote]

Thanks Diz

Hi WTG40w, I was going to brace the 45`s, but after ROV mentioned how the CG was I checked, it was just a little further forward than I thought it would be so brought the camera back a bit. I`m now happy with the CG now.

[Dizzy]

looking like sumit from war of the worlds now lol this is going to be interesting to view when your up and running  :D

dizzy

[wgt40w]

Thanks Diz

Hi WTG40w, I was going to brace the 45`s, but after ROV mentioned how the CG was I checked, it was just a little further forward than I thought it would be so brought the camera back a bit. I`m now happy with the CG now.

That looks much stronger / less susceptable to vibrations now.

Camera very low to ground - ? too low - looks like the slightest landing problem and you'll be landing on the camera !!

[Coyote]

You can probably see the clearance better in the video blow

So with motors rewound, after trying them on a standard ESC I had my concerns with will they have enough torque. So after an initial test without gopro weight I tried it out with full weight on board.

Gimbal motor test

So they do have enough torque to pull the weight around :) Obviously nothing else can be learnt other than the rewind has worked fine.

I`m only holding the gimbal to keep it level because its just sat on two bearings for the roll axis BTW

[Coyote]

More progress today, but not much

1) Fitted MPU6050 IMU sensor for the controller board under the camera base



2) Fitted the wires to the IMU and motors





3) Wrapped the IMU wires to protect against chaffing, no one like chaffing do they :)

[3DJIM]

Nice Ian, looks all set for action :)

Jim.

[Coyote]

Cheers Jim, its in desperate need of a controller though or its not happening lol

[Coyote]

I didnt know what result I was going to get from this test, but I did it anyway.

Camera swinging free on the gimbal
No controller

Just a test to see if like the other gimbal I was getting vibrations or jello I could address before the controller  came. What I was expecting was the camera swinging around at random and no real worth to the test, turns out I was wrong

gimbal vibration test

It shows no vibrations at all, rock solid picture, so I`m very happy with my DIY gimbal so far. If I get interactions once the controller is on I then know its nothing to do with the gimbal, its either settings or IMU issues.

[Dizzy]

Exellent job coyote thats a worry off your mind then just one more hurdle to go The controller  ;)

bet your delighted with that test  :)

dizzy