Flexacopter -----The Making of an octocopter "KRATOS"-----
- Thread starter holco
- Start date
ChrisViperM
Active Member
Thanks....but no need for floor wax....will get Italian marble...but a few boxes of Kleenex arround the work-shop might be needed....
Chris
holco
Member
Like everybody know's by now (we hope) is that our motto is measuring is knowing 
so we ordered two sets T-motor carbon propellers in the size 14x5 and 15x5.
The propellers are looking really good and the one's we received where spot on in balance and ready for direct mounting, although not extremely light they are much lighter than our reference Xoar wooden propellers :thumbsup:
Xoar 14x6 wood (after balancing) 26g
T-Motor carbon 14x5 16g
T-Motor carbon 15x5 19g
Because the T-Motor carbon propellers gave us a very good first impression Pieter already started to design a propeller adapter for the Plettenberg Orbit motors
One disadvantage and I think that's counts for all carbon propellers is that the carbon propellers akt like some kind of diapason, more than one time I was thinking that the bearings of our test motor where defective (I even ordered two sets replacement bearings LOL) luckily after a test-rig reference check with a wooden Xoar 14x6 propeller the motor sounded like new again the naturally damping of wood was clearly audible.
The test video's, (because of the improvised prop mounting no more than 2kg lift )
As reference the Xoar 14x6 prop
so we ordered two sets T-motor carbon propellers in the size 14x5 and 15x5.The propellers are looking really good and the one's we received where spot on in balance and ready for direct mounting, although not extremely light they are much lighter than our reference Xoar wooden propellers :thumbsup:
Xoar 14x6 wood (after balancing) 26g
T-Motor carbon 14x5 16g
T-Motor carbon 15x5 19g
Because the T-Motor carbon propellers gave us a very good first impression Pieter already started to design a propeller adapter for the Plettenberg Orbit motors
One disadvantage and I think that's counts for all carbon propellers is that the carbon propellers akt like some kind of diapason, more than one time I was thinking that the bearings of our test motor where defective
(I even ordered two sets replacement bearings LOL) luckily after a test-rig reference check with a wooden Xoar 14x6 propeller the motor sounded like new again the naturally damping of wood was clearly audible. The test video's, (because of the improvised prop mounting no more than 2kg lift )
As reference the Xoar 14x6 prop
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Silverburn
Member
Not sure you can compare a 1450 prop to a 1460 prop; you will get more lift. Likewise 15" to 14".
im intrigued by the dampening effect of the wood though. Is there any evidence of reduced vibes reaching the controller? If so, I want a set ASAP!
im intrigued by the dampening effect of the wood though. Is there any evidence of reduced vibes reaching the controller? If so, I want a set ASAP!
We are not interrested in this test about size. Just how much energy you put into a motor-prop combination to get the same results in lift.
Lower amps at same lift = longer flight.
View attachment 11573
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holco
Member
Kratos measurements and weight's.
Kratos with lipobox and quick release but without pre installed wire and motor mounts
Pre installed 16,8 meter 16AWG (motor / ESC) / 11,2 meter 22AWG (lighting / buzzer)
Kratos ESC-plate
16000mAh 6S/2P
Wiredamper with installed wire and 16x m2.5 bolts
Total span 1094mm
Quick-release complete
Orbit 15-24
Motor mount with clamps and bolts
Motor ESC set
Minimum 11AWG pure copper power distribution plates
Motor to Motor center 1042mm
Kratos with lipobox and quick release but without pre installed wire and motor mounts
Pre installed 16,8 meter 16AWG (motor / ESC) / 11,2 meter 22AWG (lighting / buzzer)
Kratos ESC-plate
16000mAh 6S/2P
Wiredamper with installed wire and 16x m2.5 bolts
Total span 1094mm
Quick-release complete
Orbit 15-24
Motor mount with clamps and bolts
Motor ESC set
Minimum 11AWG pure copper power distribution plates
Motor to Motor center 1042mm
ChrisViperM
Active Member
Heheheh....you kept word.
That case looks damn sweet......I guess you just sold one :tennis:
Will there also be one for the CS 3-axis gimbal....?
Have a very nice weekend.....
Chris
That case looks damn sweet......I guess you just sold one :tennis:
Will there also be one for the CS 3-axis gimbal....?
Have a very nice weekend.....
Chris
holco
Member
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Kratos time!!!
Yesterday, finally, was the day.. I picked up my Kratos..:nevreness:
I'm awaiting the coming of the DJI A2 before choosing my FC system.
And also the kind of BL Gimbal I end up choosing, depends on it.
Things seem to develop so fast these days, that I will finish "building" it before choosing either of those.
Also I'm still awaiting the soon to be delivered DJI retracts to have FlexaCopter find a way to attach it to the base plate.
Anyway, of course I wouldn't want to deprive you lurkers out there some nice "outta da box" pictures..
Yesterday, finally, was the day.. I picked up my Kratos..:nevreness:
I'm awaiting the coming of the DJI A2 before choosing my FC system.
And also the kind of BL Gimbal I end up choosing, depends on it.
Things seem to develop so fast these days, that I will finish "building" it before choosing either of those.
Also I'm still awaiting the soon to be delivered DJI retracts to have FlexaCopter find a way to attach it to the base plate.
Anyway, of course I wouldn't want to deprive you lurkers out there some nice "outta da box" pictures..
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ChrisViperM
Active Member
heheheheeh.....lucky you.
I still wait for my Kratos since Mario is also getting a "suit-case" for my CS 3-axis gimbal in addition to the Kratos suite-case......we want to travel in style :tennis:
As for the Flight Control: Since they made the whole development of the Kratos with the ZeroUAV YS-X6 and the fact that I have one laying arround, I will use the ZeroUAV. I'm sure Mario will give me their configuration values, which speeds things up a bit....and if DJI come up with a new flight control, no one knows how many FW-updates it needs until you can use it.....I have learned my lesson with DJI.
For the retracts, also have a look at the Droidworkx retracts....they are a lot more stabil than the fragile DJI retracts.
As for Gimbals, also have a look here: http://www.rcgroups.com/forums/showthread.php?t=1817209&highlight=brush+gimbal
This brushless gimbal mania is a pure mess at the moment....lots of small guys with no money for development are trying to cash in on the "BL-Boom" at the moment, and the gimbal from the RC-Groups link looks very promising to me.....would be a perfect fit for the Kratos.
Enjoy the building of your baby....
All the best
Chris
I still wait for my Kratos since Mario is also getting a "suit-case" for my CS 3-axis gimbal in addition to the Kratos suite-case......we want to travel in style :tennis:
As for the Flight Control: Since they made the whole development of the Kratos with the ZeroUAV YS-X6 and the fact that I have one laying arround, I will use the ZeroUAV. I'm sure Mario will give me their configuration values, which speeds things up a bit....and if DJI come up with a new flight control, no one knows how many FW-updates it needs until you can use it.....I have learned my lesson with DJI.
For the retracts, also have a look at the Droidworkx retracts....they are a lot more stabil than the fragile DJI retracts.
As for Gimbals, also have a look here: http://www.rcgroups.com/forums/showthread.php?t=1817209&highlight=brush+gimbal
This brushless gimbal mania is a pure mess at the moment....lots of small guys with no money for development are trying to cash in on the "BL-Boom" at the moment, and the gimbal from the RC-Groups link looks very promising to me.....would be a perfect fit for the Kratos.
Enjoy the building of your baby....
All the best
Chris
Hey Chris!
Sorry for the late reply!
Had to work, and awaiting basic stuff like cabling, plugs, etc before I can start my build.
Just done some prep work for now..
I will receive the S800 retracts this week, if customs works normally, and check out if it is good for the Kratos or not.
Definitely keep your suggestion at hand for a Droidworkx. But the weight is more and I won't be able to connect it the way I want to.
Another option is to wait for the Flexacopter one, that has gear rotating with camera..
But I decided to wait for the A2 before purchasing expensive electronics. So my bird won't fly until then.
At least the solder work will be done.. ;-)
Thanks!
Koen
Sorry for the late reply!
Had to work, and awaiting basic stuff like cabling, plugs, etc before I can start my build.
Just done some prep work for now..
I will receive the S800 retracts this week, if customs works normally, and check out if it is good for the Kratos or not.
Definitely keep your suggestion at hand for a Droidworkx. But the weight is more and I won't be able to connect it the way I want to.
Another option is to wait for the Flexacopter one, that has gear rotating with camera..
But I decided to wait for the A2 before purchasing expensive electronics. So my bird won't fly until then.
At least the solder work will be done.. ;-)
Thanks!
Koen
ChrisViperM
Active Member
Hey Chris!
Another option is to wait for the Flexacopter one, that has gear rotating with camera..
Thanks!
Koen
WHERE AND WHEN ??????????
Chris