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Sergey_new_pcb
23:45:51 Wed
Jul 9 2014

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

I have a few white displays right now (thanks to Carpecervisi) so just let me know if you want your board to be a limited edition.

E-mail: e-go[you-know-what]inbox[d0t]ru
Skype: sergey.pismensky
Phone: +7-90-90-500-800

  
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Sergey_new_pcb
14:16:39 Sun
Apr 13 2014

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Attention Italian customer whose mailbox is located at tiscali.it.

I found both messages from you in my spambox and replied to them. Check your spambox too, it's likely that my replies will be considered "suspicious mail" as well.

  
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DUBB
15:21:20 Thu
Mar 20 2014

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Yeah, those silicone buttons work great. I actually used the "nipples" from underneath the joypad buttons on mine, same thing. I had to glue in a little bit of plastic under them to take out the slack travel so they have a nice, positive feel. This is mine nest to GD's bumblebee. I stuck hard caps on my buttons, so the silicone is pretty much just for springyness.




---
In my experience, the secret to happiness is learning to sort out the occasional good idea from an endless body of bad ones.

I'm a Toxic Agent on a dangerous mission so secret that even I don't know what it is, and if I did, I'd have to kill myself!

"If you set a man a fire, you'll keep him warm for a night. But if you set a man on fire, you'll keep him warm for the rest of his life!"
 
 
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camracer
14:27:39 Thu
Mar 20 2014

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

You can do the buttons in a bunch of different ways.

I did mine by cutting some rubber buttons off an old TV remote control I had lying around. Cut them off the backer leaving a "tab" of rubber on them. That will hold them in there quite well.







---Cam



---
2010 DROZD TACTICAL ASSAULT RIFLE: 2010 regular Drozd, 23" JimC tactical rifle barrel, JimC AR stock, Leapers 3-9x32 "Bug Buster" scope, Walther tactical laser/light combo, Fab Defense T-Pod tactical foregrip, Sergey's 2000rpm custom full-auto circuit board, Prototype AR style 9500 round dual drum magazine
 
 
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gy954
00:47:19 Tue
Mar 18 2014

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Hi Sergey, camracer, DUBB, drozdandconfused, and all:

It's been a long time since I got my version 3 board or posted here. Finally I can do both, because I got around to installing the board. The only problem I have is with the buttons. I haven't figured out how to keep them from falling out of the gun's body. Otherwise, here she is! I would love to hear from you guys. It was your posts here that lead me through the installation process, so props to you all.

  
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Sergey_new_pcb
00:23:40 Sat
Feb 22 2014

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Hello everyone.

It looks like a suitable solution at a very reasonable price. I didn't actualy get to programming procedure, maybe there are different modules designed to monitor different batteries.

I received another link to a similar circuit in my e-mail (thanks Jim). Here it is: http://www.hobbypartz.com/79p-8003-voltagemonitor.html

Case closed.

  
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camracer
13:27:19 Fri
Feb 21 2014

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Hi Sergey.

Yes, well said. Agreed. I only use my indicator to make sure my battery charge is not getting too low (bad for rechargeable lithiums for those who are not aware).

A while back, I converted a NiCad DeWalt drill pack to use an 8000mAh LiPo pack.

That pack I installed this low voltage warning beeper circuit.
http://www.amazon.com/Hobbymate-Cells-Battery-Voltage-Monitor/dp/B009Z7LW3I/ref=sr_1_2?ie=UTF8&qid=1392988310&sr=8-2&keywords=US+Ship+Hobbymate+5+Cells+Lipo+Battery+Low+Voltage+Monitor+LED+%2F+ALARM

(Except mine was a 5S unit for my application)

Sergey, would this not work for what you are talking about?

---Cam




---
2010 DROZD TACTICAL ASSAULT RIFLE: 2010 regular Drozd, 23" JimC tactical rifle barrel, JimC AR stock, Leapers 3-9x32 "Bug Buster" scope, Walther tactical laser/light combo, Fab Defense T-Pod tactical foregrip, Sergey's 2000rpm custom full-auto circuit board, Prototype AR style 9500 round dual drum magazine
 
 
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Sergey_new_pcb
05:11:27 Fri
Feb 21 2014

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Hello Cam and everybody.

Though it's another great evidence of how skillful Cam's hands are it's not exactly what a Drozd/Blackbird needs. My idea is that when you pull the trigger voltage may drop down below a certain point (which is sometimes stated on Li cells). If you measure batteries voltage after you release the trigger it can be above this point again due to the batteries nature -- the equivalent circuit diagram would include an "ideal" voltage source and a resisitor conected in series with it. Thus, the greater power consumption is, the lower voltage we measure at the battery terminals. When the load is very small or zero, the voltmeter will show "ideal" cell voltage which can be misleading. We need some smarter circuit that would beep or blink AFTER it registers short voltage drops below threshold value.

This would involve some R'n'D and it's going to be a very specific circuit (I won't be able to sell many of them) so I'm not sure it's worth getting involved in it.

  
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camracer
15:16:02 Wed
Feb 19 2014

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

I put a battery voltage indicator on my Blackbird stock. I have five 18650 batteries in the stock. Full charge 21v. I use it to make sure I do not drop voltage below 14v on my rechargeable batteries.

I push a button to check the voltage. It is only on when i push the button.







---Cam



---
2010 DROZD TACTICAL ASSAULT RIFLE: 2010 regular Drozd, 23" JimC tactical rifle barrel, JimC AR stock, Leapers 3-9x32 "Bug Buster" scope, Walther tactical laser/light combo, Fab Defense T-Pod tactical foregrip, Sergey's 2000rpm custom full-auto circuit board, Prototype AR style 9500 round dual drum magazine
 
 
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Sergey_new_pcb
23:45:06 Tue
Feb 18 2014

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Hello everyone.

It's been a while since I posted to this thread and I'm glad to be here again.

Gentlemen, I need your opinion.

I receive messages from time to time in which Drozd/Blackbird owners ask for voltmeter to check batteries condition. Each time I receive a message like this I need to explain that this task cannot be done with "just a voltmeter". It's because the current drawn by Drozd/Blackbird is not smooth. It's graph looks like saw teeth. Conventional voltmeters demand that voltage remains stable for at least 1/3rd of a second to measure it precisely.

In order to prevent your batteries from over-discharging we need a comparator or digital-to-analog converter (DAC) fast enough to register short but deep voltage drops observed at the peak current consumption moments. Then, I think we don't need any display because when you're not shooting the battery isn't loaded, it'll be even worse to watch some display while shooting. I think we need to use a buzzer instead of a display.

We also need some hardware/software to stretch those beeps (up to 0.5-1 sec) so they can be heard more easily after you release the trigger.

Finally, different users will need those battery monitors with different threshold values. I guess I'll have to add a small 3-pins connector for two detacheable buttons (up and down) to give the user ability to adjust the tripping point using a conventional voltmeter or multimeter. I will be able to ship those little circuits pre-adjusted to a certain value specified by the customer.

Now, the main problem for me is that I need to try to estimate future demand for circuits like those. I guess its price will be about $60 including shipping from Russia to US/Canada (please understand that it's not that I'm too greedy, it's the circuit being too specific so it will never be sold in volumes like hundreds of pieces and R'n'D cost won't spread around these quantities).

Questions for you:

Do

[ Continued ]
View Rest Of Post

  
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camracer
17:54:10 Wed
Dec 18 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

That's great news Sergey!




---
2010 DROZD TACTICAL ASSAULT RIFLE: 2010 regular Drozd, 23" JimC tactical rifle barrel, JimC AR stock, Leapers 3-9x32 "Bug Buster" scope, Walther tactical laser/light combo, Fab Defense T-Pod tactical foregrip, Sergey's 2000rpm custom full-auto circuit board, Prototype AR style 9500 round dual drum magazine
 
 
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Sergey_new_pcb
19:56:20 Fri
Dec 13 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Some good news from this side of the pond. PayPal now allowes Russians to receive money too (spending money was never restricted) so I FINALLY have my own PayPal account. It'll make sending funds easier and cheaper.

George from NC, I'm sending your board tomorrow.

  
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DUBB
23:31:39 Sat
Nov 23 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Mine runs so strong that I have a toggle switch on the jumper pins, and I ground one of the eccentric lobes off the edge of the slip disc to slow the bb shaker down to a reasonable speed.



---
In my experience, the secret to happiness is learning to sort out the occasional good idea from an endless body of bad ones.

I'm a Toxic Agent on a dangerous mission so secret that even I don't know what it is, and if I did, I'd have to kill myself!

"If you set a man a fire, you'll keep him warm for a night. But if you set a man on fire, you'll keep him warm for the rest of his life!"
 
 
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ninjagame
04:51:38 Wed
Nov 20 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Thanks dubb

  
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DUBB
02:26:19 Thu
Nov 14 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Quote: ninjagame at 11:21:39 Tue Oct 29 2013

Is the Nichibo mag motor what Ray offers as the 'upgraded motor'?

Thanks ahead

Yes, Ray has the right motors, and can install them, too.



---
In my experience, the secret to happiness is learning to sort out the occasional good idea from an endless body of bad ones.

I'm a Toxic Agent on a dangerous mission so secret that even I don't know what it is, and if I did, I'd have to kill myself!

"If you set a man a fire, you'll keep him warm for a night. But if you set a man on fire, you'll keep him warm for the rest of his life!"
 
 
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ninjagame
11:21:39 Tue
Oct 29 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Is the Nichibo mag motor what Ray offers as the 'upgraded motor'?

Thanks ahead



---
It's a jungle out there.
 
 
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Sergey_new_pcb
16:46:50 Sat
Oct 26 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Let me remind you what the purpose of the jumper on the board is. You can run your Blackbird in three different modes.

1. Like-it's-never-been-modified (when your batteries voltage is around 9 volts and 15 V mag motor voltage regulator is bypassed).

2. Safe mode (when your batteries voltage is up to 24 volts but mag voltage is limited at 15 volts to avoid damaging stock Blackbird mag motor).

3. Wild mode (when you don't care about mag motor lifespan or have replaced it with Nichibo part mentioned earlier).
[1 edits; Last edit by Sergey_new_pcb at 16:49:29 Sat Oct 26 2013]

  
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camracer
18:45:21 Thu
Sep 19 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Quote: motrdyd at 21:24:16 Tue Sep 17 2013

thanks cam
thats how i have it to the front of gun what is the max volts u can run on the upgraded mag motor just the mag not gun i run 2 battery packs


thanks
motrdyd


The replacement motor (Nichibo QJT) is rated to 30v. More than you'll ever put into the gun.



---
2010 DROZD TACTICAL ASSAULT RIFLE: 2010 regular Drozd, 23" JimC tactical rifle barrel, JimC AR stock, Leapers 3-9x32 "Bug Buster" scope, Walther tactical laser/light combo, Fab Defense T-Pod tactical foregrip, Sergey's 2000rpm custom full-auto circuit board, Prototype AR style 9500 round dual drum magazine
 
 
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motrdyd
21:24:16 Tue
Sep 17 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

thanks cam
thats how i have it to the front of gun what is the max volts u can run on the upgraded mag motor just the mag not gun i run 2 battery packs


thanks
motrdyd



---
MOTRDYD I'M OUT SUCKA'S
 
 
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camracer
22:30:02 Thu
Sep 12 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

The position closer to the LED display limits voltage to 15v. The other position will give you FULL battery voltage (whatever you may put into it) to the mag motor.



---
2010 DROZD TACTICAL ASSAULT RIFLE: 2010 regular Drozd, 23" JimC tactical rifle barrel, JimC AR stock, Leapers 3-9x32 "Bug Buster" scope, Walther tactical laser/light combo, Fab Defense T-Pod tactical foregrip, Sergey's 2000rpm custom full-auto circuit board, Prototype AR style 9500 round dual drum magazine
 
 
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motrdyd
14:43:11 Mon
Sep 9 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

hey all
havent been around for awhile how does the jumper on sergey board work again if it in the front spot and the back spot hope everybody good and dubbs finger gets better


thanks
motrdyd



---
MOTRDYD I'M OUT SUCKA'S
 
 
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Sergey_new_pcb
11:59:59 Sun
Jun 30 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Hello everyone.

Some good news. First, France has just joined the club. Congratulations!

Second, another batch of boards is on the way to Ray so www.drozdmax.com will soon have them in stock. Those boards are still assembled by hand but instead of green soldering mask (necessary for automated soldering) I use transparent moisture-protective varnish. So, the boards I send to Ray (including two previous shipments) and individual customers look like this:





Isn't she loooovely? :smile:

Also, let me remind you how to mount button caps I send along with each board.



Colors designate:
Black -- plastic foregrip
Gray -- button-cap
Blue -- flexible plastic film
Yellow -- glue

How to contact me:
E-mail: e-go[you-know-what]inbox[dot]ru
Skype: sergey.pismensky
Phone: +7-90-90-500-800.
[3 edits; Last edit by Sergey_new_pcb at 11:55:11 Mon Jul 1 2013]

  
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Sergey_new_pcb
04:29:54 Mon
Jun 3 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Sorry. Will do it this Monday.

  
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green_dots
21:09:19 Sun
Jun 2 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Sergey,I need you to respond to my SKYPE message. GD

  
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DUBB
17:45:05 Sun
Jun 2 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

I took most of my right thumbnail off, all the way down to the bone, sharpening a ninja throwing star to take to school on my old man's bench grinder. A talented surgeon ("Max the Plastic Man) who happened to be roommates with my childhood athsma doctor (Doctor John), grafted in enough skin to fill the hole, but i still only have segments of nail growing on that thumb. I went to my regular family care doctor, first (the very attractive Dr Susan), and she sent me to Max the Plastic Man. This was possible, because I had introduced Dr John to Dr Susan, some time before, they had offices in the same building, but had never met. Appearantly, it was love at first sight, and eventually Dr Susan became Mrs Dr John. It's funny, since the had managed not to run into each other for about 5 years in the same building. Go figure.



---
Amendment II

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.
 
 
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radical
07:57:57 Sat
Jun 1 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

I believe my nephew had a few more creative expletives to add to that comment.

  
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camracer
21:41:31 Thu
May 30 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Oww!!



---
2010 DROZD TACTICAL ASSAULT RIFLE: 2010 regular Drozd, 23" JimC tactical rifle barrel, JimC AR stock, Leapers 3-9x32 "Bug Buster" scope, Walther tactical laser/light combo, Fab Defense T-Pod tactical foregrip, Sergey's 2000rpm custom full-auto circuit board, Prototype AR style 9500 round dual drum magazine
 
 
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radical
02:15:18 Thu
May 30 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

They saved my nephews finger. Lost it playing monkey on the boat winch. Then the IQ .05 kid decides to turn it on!

  
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camracer
00:01:30 Thu
May 30 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Heh!

Leeches can cure cancer.... at least that is what my witch-doctor said.



---
2010 DROZD TACTICAL ASSAULT RIFLE: 2010 regular Drozd, 23" JimC tactical rifle barrel, JimC AR stock, Leapers 3-9x32 "Bug Buster" scope, Walther tactical laser/light combo, Fab Defense T-Pod tactical foregrip, Sergey's 2000rpm custom full-auto circuit board, Prototype AR style 9500 round dual drum magazine
 
 
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DUBB
12:49:56 Wed
May 29 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

Quote: radical at 04:58:15 Wed May 29 2013

DUBB, honestly, I'm starting to feel like a 2nd Amendment HOARDER!

Now let's not have any more of that anti-gun proliferation talk, or we'll have to put the leeches on you again.



---
Amendment II

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.
 
 
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radical
04:58:15 Wed
May 29 2013

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Re: Drozd Blackbird "Sergey's board - 2" (9-24V, 400-2000 RPM, Full auto, 4-12 m

DUBB, honestly, I'm starting to feel like a 2nd Amendment HOARDER!

  
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