RE: New Brushless DF Board Soon Available !!  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       


Miniature Aircraft USA Ion-X - RTF
Seller:  1surfer
Details:   $5,000.00   |  10/5/2008   |  Classified Ad
We will rotate YOUR AD in this spot if you select "Forum Featured" when placing or editing your ad!

All Forums >> RC Helicopters >> Draganfly Innovations Products >> RE: New Brushless DF Board Soon Available !!
Page: <<   < prev  1 [2]

Login
Message << Older Topic   Newer Topic >>
RE: New Brushless DF Board Soon Available !! - 11/13/2007 6:50:03 PM   
Old Man Mike


 

Posts: 267
Joined: 4/21/2007
From: Huntertown, IN, USA
Status: offline
quote:

ORIGINAL: Blackdragan

quote:

8.Before plugging in the DF battery, turn the power switch ON. This will be the normal procedure for bringing up the DF with brushless motors. Now plug in the battery and you should hear a little tune from the brushless motor followed by a single beep.


Mike,

With the new brushless board does the start up procedure remain the same as above or do you first connect the battery and then turn on the power switch?

Thanks,

John


Yes. The only difference is that the motors will beep three times followed by a single beep. The procedure after that is the same as with the normal DF.

Mike

(in reply to Blackdragan)
       Post #: 26

RE: New Brushless DF Board Soon Available !! - 11/14/2007 4:01:27 AM   
Old Man Mike


 

Posts: 267
Joined: 4/21/2007
From: Huntertown, IN, USA
Status: offline 		Dammar now has a special webpage for the brushless PWB:

Brushless Controller Board

The small frame is for the original DF with motors spaced approximately 230 mm from the center.

The large frame is for platforms with motors spaced approximately 330 mm from the center such as discribed in this thread:

1000mm Custom Quad Copter


Mike

(in reply to Old Man Mike)
       Post #: 27

RE: New Brushless DF Board Soon Available !! - 11/16/2007 6:45:06 PM   
Blackdragan


 

Posts: 85
Joined: 8/18/2005
From: Sioux Falls, SD, USA
Status: offline 		Mike,

What Ti setting would you recommend when using the new brushless board with the small frame? I using a Futaba T6EX, which has the round control knob on top of the radio.

Thanks,

John

(in reply to Old Man Mike)
       Post #: 28

RE: New Brushless DF Board Soon Available !! - 11/17/2007 1:02:50 AM   
Old Man Mike


 

Posts: 267
Joined: 4/21/2007
From: Huntertown, IN, USA
Status: offline
quote:

ORIGINAL: Blackdragan

Mike,

What Ti setting would you recommend when using the new brushless board with the small frame? I using a Futaba T6EX, which has the round control knob on top of the radio.

Thanks,

John


Set it at center position or just a little to the left of center.

Mike

(in reply to Blackdragan)
       Post #: 29

RE: New Brushless DF Board Soon Available !! - 11/30/2007 12:52:10 PM   
jesolins


 

Posts: 65
Joined: 2/19/2007
From: San Antonio, TX, USA
Status: offline 		Mike,
Can you please help me understand the requirements for the large/small frame Brushless DF FCB? I understand the dimensions as a requirement, but I was wondering how different gross weights would be considered in the different versions? I am guessing here a bit, but I presume the calibration difference between the large/small DF FCB has to do with the weight differences too. So if I got the large frame calibrated DF FCB and mounted it on a less than 33cm arm length (small) frame, would that mean I could carry a larger payload with more stability on the smaller frame? You mentioned in an earlier post that this combination, which I presume is in a standard weight configuation, would occillate a bit, but how much? To the point of loss of control, or just enough to be "jittery", sort of like when the TI gets a bit out of whack? Conversely, would that make the small frame calibrated DF FCB mounted on a small frame more of a "sport flyer"?
Thanks,
Jim

quote:

ORIGINAL: Old Man Mike

Dammar now has a special webpage for the brushless PWB:

Brushless Controller Board

The small frame is for the original DF with motors spaced approximately 230 mm from the center.

The large frame is for platforms with motors spaced approximately 330 mm from the center such as discribed in this thread:

1000mm Custom Quad Copter


Mike



< Message edited by jesolins -- 11/30/2007 4:24:42 PM >

(in reply to Old Man Mike)
       Post #: 30

RE: New Brushless DF Board Soon Available !! - 12/1/2007 9:50:58 AM   
Old Man Mike


 

Posts: 267
Joined: 4/21/2007
From: Huntertown, IN, USA
Status: offline
quote:

ORIGINAL: jesolins

Mike,
Can you please help me understand the requirements for the large/small frame Brushless DF FCB? I understand the dimensions as a requirement, but I was wondering how different gross weights would be considered in the different versions? I am guessing here a bit, but I presume the calibration difference between the large/small DF FCB has to do with the weight differences too. So if I got the large frame calibrated DF FCB and mounted it on a less than 33cm arm length (small) frame, would that mean I could carry a larger payload with more stability on the smaller frame? You mentioned in an earlier post that this combination, which I presume is in a standard weight configuation, would occillate a bit, but how much? To the point of loss of control, or just enough to be "jittery", sort of like when the TI gets a bit out of whack? Conversely, would that make the small frame calibrated DF FCB mounted on a small frame more of a "sport flyer"?
Thanks,
Jim

quote:

ORIGINAL: Old Man Mike

Dammar now has a special webpage for the brushless PWB:

Brushless Controller Board

The small frame is for the original DF with motors spaced approximately 230 mm from the center.

The large frame is for platforms with motors spaced approximately 330 mm from the center such as discribed in this thread:

1000mm Custom Quad Copter


Mike




Jim,

It really does not matter much what weight you are carrying with the small frame, it is better to have the small frame PWB version instead of the large frame PWB version. That said, you can probably fly either frame size with either version of the PWB but it would not be optimum. Here is what you can expect if you mix things up:

1) Flying Small frame with Large frame PWB - tendency to oscillate

2) Flying Large frame with Small frame PWB - overly sensitive to operator controls and oscillation in TI at take-off.

That has been my experience with the limited testing done with a mismatch between the frame and pwb version.

Mike

(in reply to jesolins)
       Post #: 31

RE: New Brushless DF Board Soon Available !! - 12/1/2007 1:32:23 PM   
jesolins


 

Posts: 65
Joined: 2/19/2007
From: San Antonio, TX, USA
Status: offline 		Thanks Mike,
You helped me decide. I will go for the large frame PWB. It will be easier for me to see waaaaayyyy up there... I sure do wish this was an on-board selection though to have the option of changing and optimizing performance.
Cheers,
Jim

(in reply to Old Man Mike)
       Post #: 32

RE: New Brushless DF Board Soon Available !! - 12/8/2007 4:09:23 AM   
geoffbrown


 

Posts: 14
Joined: 12/7/2007
From: , IL, USA
Status: offline 		Mike,

If my board has the two sets of connector rows in the front I have the new style?
So then I just need to send it in for an upgrade? I didn't see anything about the upgrade
of existing boards on the draganflyer website link. Thanks for any info.

Geoff

(in reply to jesolins)
       Post #: 33

RE: New Brushless DF Board Soon Available !! - 12/8/2007 4:57:11 AM   
Old Man Mike


 

Posts: 267
Joined: 4/21/2007
From: Huntertown, IN, USA
Status: offline
quote:

ORIGINAL: geoffbrown

Mike,

If my board has the two sets of connector rows in the front I have the new style?
So then I just need to send it in for an upgrade? I didn't see anything about the upgrade
of existing boards on the draganflyer website link. Thanks for any info.

Geoff


Geoff,

It certainly sounds like you have the board that can be upgraded to the brushless version for $50. I think that Dammar just did not include the upgrade price on the website because there were so few of them sold. But he approved my posting at the start of this thread so I am sure he will honor the $50 upgrade statement. I recommend you send him an email for confirmation.

Mike

(in reply to geoffbrown)
       Post #: 34

RE: New Brushless DF Board Soon Available !! - 12/8/2007 6:11:37 AM   
geoffbrown


 

Posts: 14
Joined: 12/7/2007
From: , IL, USA
Status: offline 		Thanks Mike!! I bought BB_DF's equipment from him and am going to go brushless.
Thanks for all of the work you did to make that happen. Really amazing!

(in reply to Old Man Mike)
       Post #: 35

RE: New Brushless DF Board Soon Available !! - 12/8/2007 12:50:23 PM   
jesolins


 

Posts: 65
Joined: 2/19/2007
From: San Antonio, TX, USA
Status: offline 		Here is the email Mike Dammer sent to me regarding the board version to which you are referring:

"Mike Dammar <MDammar@spectrolutions.com> wrote:
We can upgrade the new style boards for $55.00 (includes return shipping via US priority airmail)
We test fly the board, add the connectors, change the firmware, and modify some of the circuitry.
It will then work only in the configuration requested ( large or small frame diameter).
If you want to do this , just send the board, along with a check or money order to the address shown on our website www.spectrolutions.com
Alternately, you can send a paypal payment directly to sales@spectrolutions.com with a note stating it is for a brushless upgrade. Print the papal receipt and include it with the board when you ship it.
Best regards,
Mike Dammar
Spectrolutions Inc"

quote:

ORIGINAL: Old Man Mike


quote:

ORIGINAL: geoffbrown

Mike,

If my board has the two sets of connector rows in the front I have the new style?
So then I just need to send it in for an upgrade? I didn't see anything about the upgrade
of existing boards on the draganflyer website link. Thanks for any info.

Geoff


Geoff,

It certainly sounds like you have the board that can be upgraded to the brushless version for $50. I think that Dammar just did not include the upgrade price on the website because there were so few of them sold. But he approved my posting at the start of this thread so I am sure he will honor the $50 upgrade statement. I recommend you send him an email for confirmation.

Mike



(in reply to Old Man Mike)
       Post #: 36

RE: New Brushless DF Board Soon Available !! - 12/11/2007 6:23:26 AM   
geoffbrown


 

Posts: 14
Joined: 12/7/2007
From: , IL, USA
Status: offline 		Thanks Jesolins

(in reply to jesolins)
       Post #: 37

RE: New Brushless DF Board Soon Available !! - 12/20/2007 11:40:18 PM   
AOW Lusetti


 

Posts: 20
Joined: 12/17/2007
From: simi valley, CA, USA
Status: offline 		If I were to go and purchase a brand new SAVS would it have the upgradable board ? Does anyone know ?

(in reply to geoffbrown)
       Post #: 38

RE: New Brushless DF Board Soon Available !! - 1/7/2008 9:29:39 AM   
Old Man Mike


 

Posts: 267
Joined: 4/21/2007
From: Huntertown, IN, USA
Status: offline 		I received the following note from Mike Dammar:

Mike,

We just got two brushless boards from two different customers with a ground trace blown between the 5 volt regulator near the black crystal, and the crystal ( near the micro controller)

This ground also goes over to the 3 pin headers for the speed controllers.

Not sure how this would happen.

A short to +5 shouldn’t do it, that is current limited to about .5 amps

The only other thing I can think of is if the speed controllers are becoming ungrounded and all the current is back flowing through the servo connectors….

This is probably it, in fact there is probably always a couple tenths of a volt difference between the system ground, and the ground that the speed controllers are seeing.

If that is the case, it will necessitate jumpering the FETS to eliminate the possibility of a ground differential.

You might want to post this on your site.

You can easily see the burned trace on the bottom of the board near the corner of the crystal when this happens.

Best regards,
Mike Dammar
Spectrolutions Inc.

What this means is the following:

1) If you are using the single 8 pin connector on the bottom of the PWB to connect to the ESC power, then you should solder a wire across each of the FETs as shown in the picture.

2) I have always recommend direct wiring of the ESC power to the Battery Ground and Fuse. You do not need to do the FET bypass above if you go this way. Here is how I did it on my board:


Mike

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize

(in reply to AOW Lusetti)