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Search: Posts Made By: ADI
Showing results 1 to 25 of 500
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Forum: Multi Rotor Helicopters
12-04-2009, 04:31 PM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi anthrax,

Here's a pic of a 3 way uncut joiner. Available in 2, 3 & 4 way. They're sold in gardening department of hardware store.

Cheers ADI
Forum: Multi Rotor Helicopters
12-04-2009, 01:21 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi Anthrax,

Here's some pics. You can also see the landing gear method of attachment.
The aluminium tube is 9.5mm diameter x 0.8mm wall thickness. I sourced this from a local TV antenna...
Forum: Multi Rotor Helicopters
12-03-2009, 05:25 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Will take some closeup pics tomorrow and post them. Landing gear is made from spring steel. This was taken from a foldup washing basket. 4 arms connect at centre using a 4 way plastic garden...
Forum: Multi Rotor Helicopters
12-03-2009, 04:43 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi Anthrax,

Sorry, I meant cheapest in the Great Planes Rimfire range.
I'd be keen to know how the TGY AerodriveXp motors perform. Wow, certainly a very good price.

Cheers ADI
Forum: Multi Rotor Helicopters
12-03-2009, 04:16 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi anthrax,

Thankyou for prop info. The Rimfire 750 Kv motors are also the cheapest in the whole range.

Cheers ADI
Forum: Multi Rotor Helicopters
12-02-2009, 04:12 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

If a quadrotor is travelling horizontally at constant velocity, this suggests a tilted quadrotor. A level quadrotor would tend to be stationary. We're assuming no wind here.

You can be tilted...
Forum: Multi Rotor Helicopters
12-02-2009, 12:55 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi Guys,

I've done quite a bit of experimentation with complimentary filter of Gyro/Accelerometer.
The system works really well if you have your gains and drift correction time periods set...
Forum: Multi Rotor Helicopters
12-01-2009, 03:42 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

I use SPI for the following reasons:

SPI pads are already on the esc pcb (Originally used for programming of esc micro at factory)
I2C I/O lines are in use on the esc as normal port I/O
SPI...
Forum: Multi Rotor Helicopters
12-01-2009, 01:55 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi Anthrax,

500 Hz is good! So your PID algorithm is also running at 500 Hz ?
You say in earlier post that you built your own esc. You will have been through the same hurdles as me with...
Forum: Multi Rotor Helicopters
11-30-2009, 04:28 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi Anthrax,

Long time ... no talk...
Congratulations on your success! You've built a very stable machine.
I think your problem as shown in the video at 4:30s is a simple software bug. It's...
Forum: Multi Rotor Helicopters
12-09-2008, 05:13 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Busy working. Haven't had much time for quadrotor stuff, but have been quietly planning my next machine with the spare time available.

ADXRS300 gyros
SCP1000-D01 pressure sensor
ADXL202...
Forum: Multi Rotor Helicopters
12-07-2008, 03:57 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi Guys,

How's everyone doing? Hope everyone's well.
I checked out that pulse jet clip tve. ...... crazy stuff.
Anyone working on any new projects ?

Cheers ADI
Forum: Multi Rotor Helicopters
07-12-2008, 07:49 PM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi Tve,

Nice to hear from you again after so long. Hi also to the new guys who have recently posted.

Having read just about everything on the net related to quadrotor design, I feel the...
Forum: Multi Rotor Helicopters
03-29-2008, 12:09 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi bulutadam,

You must control the ESC with PPM signal - not PWM signal.

PPM info here:
http://www.mp.ttu.ee/risto/rc/electronics/radio/signal.htm

Cheers ADI
Forum: Multi Rotor Helicopters
12-20-2007, 03:51 AM
Replies: 3
Views: 5,507
Posted By ADI

RE: quadrotor from scratch ?s

Hi haobuhao ,

A lot of the info you're after can be found here:
http://www.rcuniverse.com/forum/m_1487065/mpage_1/key_/tm.htm

To point you in the right direction ...... PID control is...
Forum: Multi Rotor Helicopters
12-12-2007, 12:41 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

I found a work around by using a freeware serial port logger program. It's binary file is then fed to a binary to ascii file converter program which is then loaded into Excel.



It's not...
Forum: Multi Rotor Helicopters
12-11-2007, 12:11 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi thedinuka,

That's cool. Did you write this program or is it available as freeware or other ?

Cheers ADI
Forum: Multi Rotor Helicopters
12-05-2007, 03:59 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi thedinuka,

The epoxy I used was West System Z105 and the hardener was West System Z206
Their website here: http://www.westsystem.com/

The silicon rubber molding compound is Elastosil...
Forum: Multi Rotor Helicopters
11-03-2007, 09:48 PM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi all,

With this forum pretty much at an end, I thought I'd post some valuable tips to others who might be just starting out building a DF. I'll add to this list of tips as I think of them.
...
Forum: Multi Rotor Helicopters
11-03-2007, 06:04 PM
Replies: 2
Views: 2,276
Posted By ADI

RE: TUBOPTER

Hola mi amigo Español..... qué pasa?

Nice work Danvel! Very interesting machine. Seems that anything is possible, with ingenuity, determination and of course our saviour ... the...
Forum: Draganfly Innovations Products
09-01-2007, 04:20 PM
Replies: 371
Views: 60,707
Posted By ADI

RE: SUCCESS! - A Brushless DF Conversion

Hi Mike,

Nice work on the DF motor conversion. Nice to see that ingenuity is still alive and well.
Just curious about the camera you're using: Does this model give video out in both the still...
Forum: Multi Rotor Helicopters
08-31-2007, 02:54 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Perhaps the ADXR150 is a lot more stable. I haven't tested one yet.
I know that the Murata gyros are a lot more temperature stable than the Tokin gyros.
I have tested both brands.



...
Forum: Multi Rotor Helicopters
08-29-2007, 03:30 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Too thin a rod will encourage oscillation in the rods. Even my 7.4mm rods acted like tuning forks at a certain motor frequency. I had to add a 3mm diameter CF outer perimeter brace between the 4...
Forum: Multi Rotor Helicopters
08-27-2007, 01:49 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

You have to click on "Reply" or "Quote" and then "Click here to upload images and files!" will appear below your text window.
Can't upload if you use "Fast Reply" text window.

ADI
Forum: Multi Rotor Helicopters
08-27-2007, 01:41 AM
Replies: 3,266
Views: 358,603
Posted By ADI

RE: Building a DraganFlyer - need to mix speedcontrollers - HELP

Hi dinuka,

34mm diameter CF rods is huge! My motors are only 24mm diameter as a comparison.
The CF rods I used are archery arrow blanks, bought from an archery supply store. Measurements are...
Showing results 1 to 25 of 500
 
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