Build KapteinKUKs Simple and Low Part Count Quad, Hex and Tricopter Flight Controller - Page 347 - RC Groups
Thread Tools
Sep 06, 2010, 05:56 PM
Tinkerer
don_cocinero's Avatar
Quote:
Originally Posted by jonnyc67
Nice looking T-tri looks like it's very agile. do you cut down the shafts on those motors?
You can actually reverse the shaft on the KDA20-22 as shown here.
Sign up now
to remove ads between posts
Sep 06, 2010, 06:23 PM
Registered User
jonnyc67's Avatar
How about this for a fuselage/body for a T tricopter......
I was thinking lightweight depron construction any takers...
Sep 06, 2010, 06:27 PM
Friend is a 4 letter word...
JussiH's Avatar
I find it pretty daft to use a hammer to remove the shaft from a motor

Sensible people use a drill press and an old (smaller) axle to press out the shaft.....
Sep 06, 2010, 06:51 PM
Registered User
jonnyc67's Avatar
I'd rather use my pillar drill, or the tailstock of a lathe (or my hydraulic press )to press shafts out be honest - I suppose a hammer would do for field repairs, but it's pretty easy to bend the shaft out of true...
I'm probably going to cut down the shafts in my old motors when they get transplanted to a new project, was just curious if KK had cut down the shaft in the tail motor of his T tricopter as I couldn't see it sticking out.
Sep 06, 2010, 07:17 PM
321
321
mixed styles flight
Quote:
Originally Posted by kapteinkuk
Here is my newest toy, a T-style tricopter.
...
Nice and light!

My recent build is half-way between a traditional tricopter and a T-copter and it looks like we did the same thing. I kept the equilateral triangle motor layout and CG, but relocated the arms. The layout seems to have worked out just fine, but there are still some other bugs to iron out.
Sep 06, 2010, 10:49 PM
Tinkerer
don_cocinero's Avatar
Quote:
Originally Posted by jonnyc67
... - I suppose a hammer would do for field repairs, but it's pretty easy to bend the shaft out of true...
Only if the only tool you possess is a mallet.
Sep 06, 2010, 10:53 PM
Tinkerer
don_cocinero's Avatar
Quote:
Originally Posted by 420RcPilot
I find it pretty daft to use a hammer to remove the shaft from a motor

Sensible people use a drill press and an old (smaller) axle to press out the shaft.....
Sensible people acquire the skills that enable them to work efficiently without having to fill a room with machines.
Sep 06, 2010, 11:02 PM
That tree again!!!!
thanhTran's Avatar
Quote:
Originally Posted by don_cocinero
You can actually reverse the shaft on the KDA20-22 as shown here.
It looks like the new KDA motors recently add this feature. It has the c-clip slots at both ends of the shaft. The old one I have don't have the c-clip slot at the other end, and you would have to cut it before you could reverse it.
I was wondering why I see the slot on the top of the shaft, now I know why
Last edited by thanhTran; Sep 06, 2010 at 11:17 PM.
Sep 06, 2010, 11:16 PM
That tree again!!!!
thanhTran's Avatar
Quote:
Originally Posted by kapteinkuk
Here is my newest toy, a T-style tricopter. It has a motor to motor distance of 50cm, and is made of 15x25x0.6 mm alu ....


...
Really nice work & flying Kaptein! Nice tail motor holder you have there. I like the idea that the motor is mounted directly on it.

Seems like you're getting a lot more aggressive on your flying . How are those hot glue and zip tie hold up in that last crash? And did I hear machine gun firing in the background?
Sep 07, 2010, 01:03 AM
Registered User
Quote:
Originally Posted by thanhTran
Really nice work & flying Kaptein! Nice tail motor holder you have there. I like the idea that the motor is mounted directly on it.

Seems like you're getting a lot more aggressive on your flying . How are those hot glue and zip tie hold up in that last crash? And did I hear machine gun firing in the background?
Thats what I heard too.... Then I realized it was the wood peckers who keep getting freaked out by the alien craft trying to scare them off with an amp connected to their beak mikes!



Kaptein.... I have seen the T copter thread that got a bit nasty on rcgroups and I have a very clever friend here in the UK who independantly has been building a T. Both projects seem to be based on the scope of heavy lift. Is that why you ventured into this layout ? Or just because you could?

Has anyone run a KK in conjunction with a DOSD+v2 yet? All the new features that have been added to it recently means that I think its a fairly easy and relatively inexpensive way to get gps and by next week waypoints etc....

Thats my plan anyhow.... But my Tri is on hold whilst I set the DOSD up in my twinstar first (any cock ups on my part will be cushioned by the luxury of a glide before a thump!! Would be interested to hear anyone elses thoughts

regards
Paul
Sep 07, 2010, 01:23 AM
Registered User
SupraGo's Avatar

How do I fix...


Setup.
Tricopter with motor to center 21". TH V6 board. Tri V1.5 software.
Have gain on all 3 pots all the way to max, but I'm not getting symptoms of high gain, rather that I don't have enough gain. Turned pots all the way down(CCW) and it's for sure low gain.
I have looked at the TriCopterV1_5.asm and think that changing PotScaleRoll & PotScalePitch might do what I want. I changed from the default value of 10 down to 9 for both but didn't see any difference. I'm using AVR Studio. Do I have to do something different here before I upload or same as normal upload.
Suggestions please...
Bill
Sep 07, 2010, 01:27 AM
Registered User
Quote:
Originally Posted by thanhTran
The black probe goes to any outer pins of the Motor connectors (the negative pin). The red probe goes to the middle pin of the gyro board. If there is zero volt there then you need to probe into the gyro board or the gyro chip itself. The gyro board has 3 pins: GND, gyro out(middle should be around 1.33v), and Vcc(should be around 4.6v)

Thanh
Hey Thanh, what software version are these reading for? Mine is V4.4 and middle pin gives only 0.1V and Vcc is 0.83V. I tried to reduce pot but readings doesn't change.
I still don't know why I can't arm/disarm. The board gives steady LED approx 2 secs after power on and arm instantly.

Help!!
Sep 07, 2010, 02:12 AM
Registered User
bob4432's Avatar
Quote:
Originally Posted by skye
Hey Thanh, what software version are these reading for? Mine is V4.4 and middle pin gives only 0.1V and Vcc is 0.83V. I tried to reduce pot but readings doesn't change.
I still don't know why I can't arm/disarm. The board gives steady LED approx 2 secs after power on and arm instantly.

Help!!
in regards to arm/disarm - 4.4 doesn't have arm/disarm - 4.5 is when it was implemented, the current firmware for quads of this posting
Sep 07, 2010, 02:15 AM
No, it's the same plane ...
jjk77's Avatar
Quote:
Originally Posted by thanhTran
And did I hear machine gun firing in the background?
I think everybody is hearing what he wants to hear .
But i assume that these sounds are only the air hammer sounds from the nearby junkyard (seen on kapteinkuks pan/tilt video). I've seen this technic of metal separation at a local junkyard and it makes exactly these sounds

regards
jjk

ps: My diploma theses is ready and now i could start to build my own tricopter
Last edited by jjk77; Sep 07, 2010 at 02:35 AM.
Sep 07, 2010, 02:35 AM
That tree again!!!!
thanhTran's Avatar
Quote:
Originally Posted by skye
Hey Thanh, what software version are these reading for? Mine is V4.4 and middle pin gives only 0.1V and Vcc is 0.83V. I tried to reduce pot but readings doesn't change.
I still don't know why I can't arm/disarm. The board gives steady LED approx 2 secs after power on and arm instantly.

Help!!
Hey Skye

I lost count of which software that has the arm/dis-arm feature. Please see Bob's post.

Regarding the voltage values, they are not affected by the software version. If you're turning the pots, only the middle pin's voltage changes. The number seems too low. The voltage at the right pin of the pot (look from top) or voltage of C11 should be around 1.6v and middle pin of the pots when pots are in the middle is supposed to be around 0.8v. If not, you should check the resistor R9 & R10.

-Thanh


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Quadrotor brushless controller airbotix Multirotor Drone Talk 63 Aug 06, 2010 11:15 AM
Discussion ALPO -Aerobatic Low Parts count Original design. Brian Courtice Foamies (Scratchbuilt) 8 Sep 21, 2009 03:57 AM
Discussion Any tips for my first flight with a low wing plane? Warthog_Fan Fuel Plane Talk 4 Sep 06, 2009 07:53 AM
Help! Need help with Low-cost QuadRotor Hero.sl Coaxial Helicopters 5 Jun 28, 2009 02:26 AM
Question Searching Simple Controller for Free Flight flymax Power Systems 8 Jan 07, 2006 10:07 AM