Brushless Nano Cpx. Post your setup and discussion thread.

[Dylwad]

Originally Posted by Bjanzen

Okay then..... Guess I will wait til you send me a new one..... I placed my order last night. I am sure your skills are much better than mine and WELL WORTH the 5 bucks ;-) I tried to solder to those spots and first time I unplugged my lead I pulled the positive pad off the board :-( Signal seems loose now as well. I ordered a set of three prongs..... Maybe you can just leave it on the board for me.... Hint hint ;-)

Flashing gets easier after you do it 500+ times the Atmel blheli was a pain, 6 wires to mcu pins to flash, and no blheli setup software, had to edit code to change settings.....

[Bjanzen]

Originally Posted by Dylwad

Flashing gets easier after you do it 500+ times the Atmel blheli was a pain, 6 wires to mcu pins to flash, and no blheli setup software, had to edit code to change settings.....

My hat is off to guys like you who have pioneered the field for us....... I wasn't having much fun with mine in stock form and tried a second motor to get the same results..... BL was my only option ;-) I was to impatient to wait for the kit so I gave it a shot.......

[Dylwad]

Originally Posted by Bjanzen

My hat is off to guys like you who have pioneered the field for us....... I wasn't having much fun with mine in stock form and tried a second motor to get the same results..... BL was my only option ;-) I was to impatient to wait for the kit so I gave it a shot.......

Im just following along with some of this stuff too

[pjacq]

Originally Posted by Dylwad

I like it whats the weight on the spacers?

I just check them and with my small scale they are under a gram(.75)
I like how solid they make the fra me ......no gear in the mail yet so one more day top waisted should of order from you ............

[indoorheli]

Originally Posted by The.K

Hey indoorheli thanks a lot

i totally agree with you about 5!
and a ratio of 1.75 for 4 seconds if the tail holds is really great, and never be achieved with a mCP.
I'll get my greedy hands on one as soon as i'm done with this freakin' thesis, again thanks for your feedback.

one more question, is it enough to wear the motors in for like 3-4 hower flights (no right pyros) with about half throttle?

Prost

It probably is but I am the wrong person to ask about proper break in....I am very ruff on my motors. Most of the micro helis i own I run back to back batteries at full power from battery 1

Originally Posted by Dylwad

Looks good, still dont like the long shaft needed using an unmodded hp03s though.

I dont use a longer shaft on the stock hp03s. I just took about 1mm or so from the bell. It still is quite tuff and I have crashed it a lot and it hasnt shown any signs of coming loose or bending.

[thanasi]

Ok went through my first motor yesterday time to go Bl, got a question as i have been out of the loop on bl setups !

I wanna do the hpo3s 13500kv with a xp-3a esc,7 tooth looking for mild, do i have to flash esc to get to work, do i need a convertor like my mcpx has.
Or u guys flash these esc's to get GOV to work ? hope i dont sound to dumb lol

Tanks Tom

[indoorheli]

If you flash the xp3a you dont need a converter. Dylan will flash one for you for 5 bucks... I think. Or you can order the usb flash stick from him and flash the esc yourself

[thanasi]

Cool, thanks indorheli now i get it dah !
Was planning getting my motor from him so i guess ill get it all one shot.
How does govern come into play or is everyone just using a flat TC and calling it govern @ what ever their target rpm they want

thanks again

[sskaug]

Originally Posted by thanasi

Cool, thanks indorheli now i get it dah !
Was planning getting my motor from him so i guess ill get it all one shot.
How does govern come into play or is everyone just using a flat TC and calling it govern @ what ever their target rpm they want

thanks again

The XP 3A ESCs flashed with BLHeli surely have a governor for real

[Daryoon]

@thanasi

Listen to sskaug. He wrote the BLHeli firmware that's being used everywhere. Companies like Oversky are creating ESC with his code already flashed in them.

The HW convertor that you used for the mCPX brushless conversion works fine...but it's kindda old style in light of the BLHeli firmware.

With BLHeli, you get rid of the ESC and it's associated wiring. So lighten the setup. Then you can use the software BLHeli Setup GUI program to set up various parameters to dial your brushless set up in. Including set the governor mode. Kindda like the Big helis.

Screenshot of BLHeli Setup 8.0

[thanasi]

Daryoon cool info i got lots to read, I did do some reading last night on blheli
wow way over my head.
Love it , im going to try and wait for dylans kit ha ha thanks for the read

[4712]

I think, sooner or later, I will join the nano club

Originally Posted by Dylwad

Blhelisetup 7 has a bug for me when flashing new escs though, have to erase the chip first, or flash with an older version first.

8 was just released last night too, havent tried it yet though

Dylan, did You try the V8? Still buggy?
Unfortunately, I get very little feedback in general.
May be that this is a good sign ...
But it is not easy to make advancements and improvements.

[Daryoon]

@thanasi

It's way over many of our heads. However, it's easy to simply use it. LOL

The programming toolsticks are cheap now.

You can buy the ESC already flashed and the toolstick, all from one place. Dylan from Astroid-Designs has all the parts needed.

[Dylwad]

Originally Posted by 4712

I think, sooner or later, I will join the nano club


Dylan, did You try the V8? Still buggy?
Unfortunately, I get very little feedback in general.
May be that this is a good sign ...
But it is not easy to make advancements and improvements.

V8 does the same thing still, I didnt mention it to you since 7 was Beta and the workaround isnt that hard, just annoying when your used to being able to just hit flash ESC.

If I want to update a flashed ESC to 8 it works fine, if I want to flash a new ESC I get a write protected error and have to go into expert mode and erase chip first, than it will take a flash no problem. Tried to attach Log file but Helifreak wont let me Txt file attached

Dylan

[Daryoon]

For log files, since they are all text. Simply use Pastebin. Then put the link here. That's my suggestion.

[Dylwad]

Originally Posted by Daryoon

For log files, since they are all text. Simply use Pastebin. Then put the link here. That's my suggestion.

Log file was .tlg but you can save it as txt.

[KlaimXI]

I need a little help. I'm using a XP-3A BLHeli 8.0 and a HP03S 16600 8T pinion. Let the questioning begin!

1: How many poles does the motor have? I took an educated guess and counted 9 poles.

2: When I spool up at zero pitch it reaches full speed then bogs heavily with any pitch. I've tried 95% and 100% governed throttle both get the same bogging. What could be the issue? ::edit:: low battery

3: When I soldered the motor to the esc, it spins backwards so I just reversed the motor direction in BlHeliSetup. is that going to affect the performance?

Thanks for your time. you guys are awesome!

[Dylwad]

Originally Posted by KlaimXI

I need a little help. I'm using a XP-3A BLHeli 8.0 and a HP03S 16600 8T pinion. Let the questioning begin!

1: How many poles does the motor have? I took an educated guess and counted 9 poles.

2: When I spool up at zero pitch it reaches full speed then bogs heavily with any pitch. I've tried 95% and 100% governed throttle both get the same bogging. What could be the issue? ::edit:: low battery

3: When I soldered the motor to the esc, it spins backwards so I just reversed the motor direction in BlHeliSetup. is that going to affect the performance?

Thanks for your time. you guys are awesome!

Motor is 6 pole but it doesnt matter, blheli doesnt need to know or use that info besides for the calculator in blheli setup, and that calculator is only a general guide for using Gov Setup mode.

16600kv likes a 7 tooth (6 tooth would be good too if it was available), hyperion 180 or 240's and 24 gauge wire from the esc to battery. Even the best 150-160 mah UM cell has a hard time with the 16600kv with a 7 tooth.

95-100% throttle is not governed, try 75% flat and work your way up until the tail holds good during pitch pumps. Start with p and I gains at 2.00.

Doesnt matter if you have the motor reversed in software, whatever it takes to make it spin the right way.

8 tooth, weak batteries and small wires are most likely your issues.

Dylan

[4712]

Thanks Dylan,

Originally Posted by Dylwad

If I want to update a flashed ESC to 8 it works fine, if I want to flash a new ESC I get a write protected error and have to go into expert mode and erase chip first, than it will take a flash no problem.

I don't know exactly, how You get to this point...
The reason might be the Lockbyte, which is different set for different BESC's in factory state. Could You please a "Read Memory" at the expert page at Start:0x1DFF and Length:1 before You erase the chip?

Tried to attach Log file but Helifreak wont let me Txt file attached
Dylan

Simply rename the file from *.tlg to *.txt and post

EDIT: I released a new revision 8.0.0.2. I changed the handling of partially locked BESC with reading the lockbyte first. Please check out...

[4712]

Originally Posted by Daryoon

For log files, since they are all text. Simply use Pastebin. Then put the link here. That's my suggestion.

Not all log files are text files
I use a homemade special format (saves the whole treeview with all attributes) and picked the *.tlg extension.