Nicoleto

Has any one ever tried to convert the DF Ti to brushless? I think It could be easily done by replacing each brushed motor with:

One Powerzone brushless converter or one Brush2Less Converter
One Brushless controller (Phoenix CC 10)
One brushless motor.

What do you think?

laceycopter

Nope...won't work with the board on the DF or the wiring harness.
We already dicussed this in another thread.

flyingdutchie

Which thread is that?
Correct me if I'm wrong,but the Brush2less for example takes the power output which normally goes to a motor,converts that to a servo signal which can be fed into a brushless esc right? That doesnt have anything to do with wiring harness or board,just a pair of scissors will do the trick.
So one would need four of those converters and four brushless esc's which will make the DF quite heavy I'd say,and I don't think that there is an esc which can react quick enough to make the df flyable though.

laceycopter

The signal needs to be feed to the board for the Gyro's and TI to signal the motors....Put Thoses Sissors Away!!!...hehe
The board is not designed to handle 4 brushless esc's...the harness wires are also to small and you couldn't get bigger wires though the frames...it would need to be Totally redesigned.
Lacey
P.S. I'll try and find the thread were we discussed it.

Nicoleto

Hi Laceycopter. I think there is a way of doing that. You could take the harness wires (only the positive cableof each motor) and connect them to the brush2less converters.

Here are the installation instructions:
http://www.helihobby.com/html/CALIBEP1.html

Then each converter (the brush2less converter) will convert that signal (The signal that goes directly to the brushed motors) to a valid servo signal (Like the signal coming from a regular rx). Finally that servo signal would go to the brushless esc. The only important modification is that the battery must be connected not only to the DF electronics (Sensors DF main board) but also to each one of the brushless esc’s. In that way the esc’c would power the brushless motors directly from the batteries and would use the control signal coming from the DF main board. I theory this configuration should work well. The only drawback I can think off is that the esc’s may not be faster enough to change the blades RPM on time.

Nicoleto

The bigger advantage of this system is that theoretically you could use any brushless motor which means that you could configure a system that could lift a pound or several pounds. It doesn’t matter if your system draws 20, 30 or more amps the important think is that the escs and battery should handle that amperage. You could even construct a High Voltage system and power the DF main board via an external regulator. Of course, to construct such a system you have to modify the frame and I think that xufo-shop will have new x-frames for the DF coming out real soon

Nicoleto

Here is an image with the suggested configuration. Note that one converter, one controller and one motor would be needed in order to replace one brushed motor.

laceycopter

You go ahead and try it.....I'll wait here....hehe
I don't believe the stock board will handle it...and you are going to add LOTS of weight.
I'm thinking it will only fly you to the scene of the CRASH!...
Good Luck...Let me know how it works out.
Happy Flyin,
Lacey

flyingdutchie

The board will operate just the same way as it did,only it's brushed motors are replaced by the converters..no way the board will notice that (or does it have more intelligence than the advertised Thermal intelligence[sm=biggrin.gif] ) Anyway I'm not gonna try it since my board died (anybody interested?).My x-ufo parts are on their way.

Hammer_DE

@nicoleto

i agree with laceycopter you can't do it in this way.

The only thing it would be happen - you burn your board and crash your DF.

laceycopter

Thanx for backin me up Hammer.... .... I hate to see people smoke their boards...
If only they knew how much work you guys put into them to make them brushless.
as soon as the your whole package is available I'll be ordering one....(workin on my german so I can order).
Happy Flyin,
Lacey

Hammer_DE

Hi laceycopter,

we started a absolute new project. UAVP = Universal Aerial Video Platform (nothing to do with x-3d)
this Project is (Software for the Flyer) OpenSource and the Software Developer ist Wolfgang Mahringer from Austria
and the new System is Brushless.

The new Flyers are in DraganFlyer Size 500 - 540mm from Axis to Axis.

The Website to this Project = www.uavp.de (also in english)

I have some Pics and Vids for You...

http://www.rcmovie.net/view_video.ph...c72faacf0cb8ac
http://www.rcmovie.net/view_video.ph...4f2c82958de8cf
http://www.rcmovie.net/view_video.ph...a196f8ad173178
http://www.rcmovie.net/view_video.ph...0db9e32851ebf9
http://www.rcmovie.net/view_video.ph...3749885523d6a2
http://www.rcmovie.net/view_video.ph...3de768ac819ffb
http://www.rcmovie.net/view_video.ph...4fa0150b875b86

and this system is available right now...

flyingdutchie

Hammer,are the mainboards fully assembled or not? and is there a stabilisation system for the heli?

Hammer_DE

@flyingdutchie

The project is OS, in this case the mainboards is not fully assembled, but i know some of the german Forum-members makes this
for the other's they can't...

The Board works with 3 Gyro Breakout Board - ADXRS300 - 300 degree/sec, 1 Triple Axis Accelerometer Breakout - LIS3LV02DQ
and optional with 1 compass module, 1 gps module and with a Barometric Pressure Sensor - SCP1000 - Breakout.

So, you can build a very fast and powerful FunFlyer or a very stable Aerial Video or Photo Platform.

The modules are from sparkfun.com.

On two of my videos, you can see flights with the triple axis accelerometer, this thing don't need a pilot with rc...

yvesOttawa

Hammer that is awesome! I can see the attraction to this open source project since I am already ordering parts from Sparkfun.

But the frame has to be purchased from http://www.rc-manufaktur.de/ which I cannot find an English version of the site. I don't speak German and would love to be able to buy this frame kit.

Can you help?

Yves (in Ottawa Canada)

yvesOttawa

Never mind hammer, I found the online store.

Hammer_DE

Hi Yves,

yes i can you can also purchase the Frames from www.lipoly.de
and in this shop (lipoly) you can order all other needed parts also...

This is a very good fullsortiment Shop for our OS Project, the
complete shop is in english or in german.

The modules adxrs or the other sensor, can be purchased (for all outside german)
dreict from sparkfun. it is cheaper and faster for you.

Greetz
Hammer

... but you can also build a simple frame by yourself to fly

Nicoleto

Hi Hammer_DE. Any chance you could sell a complete kit. (Electronics. BL motors, frame ETC)? It doesn’t’ have to bee assembled. It’s just that it would be easier to order or buy a kit from one site only so one wouldn’t have to pay more than one shipment.

Hammer_DE

@nicoleto

in the shop from lipoly.de, you can buy different complete kits.
(only electronic parts, e-parts with frame, e-parts- frame, motors and so on...)

flyingdutchie

Can you tell us what the difference is between the uavpset board and the wolferl board?

Nicoleto

Great, I think I’m going to sell my DF and buy one UAVP Set 4D. This system is very flexible and powerful, just what I was looking for.

Hammer_DE

@nicoleto
this project is realy powerfull and good for the future... (opensource software)

@flyingdutchie
the uavpset is the (also OS Software-Interface) Software to program the wolferlboard.
(Homepage www.uavp.de)

in the shop the uavpset's are the different part-sets for the flyer and the wolferboard
is the motherboard (single) of the flyer.

Nicoleto

Hi Hammer_DE. Regarding de GPS module, which one do you recommend I could use? What I really want is to buy the complete set. I would buy most of the things from Lipoly.de but they do not sell the GPS module and I'm not sure which module to select from Sparkfun.

Thanks for your help

Hammer_DE

the easy way is, send an email to [email protected] and ask for Daniel Rinninsland,
he knows all about our project and can help you very fast.

Greetz
Hammer

Nicoleto

Thanks again Hammer you’ve been very helpful.

Regards
Nick