Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 58 users online :: 6 registered, 0 hidden and 52 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MCRKilljoy, MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Solenoid actuated hammer valve

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
Sponsored 
  • Author
    Message

Unread postAuthor: wyz2285 » Wed Mar 28, 2012 3:10 am

search: solenoid puh type. My is a pull type and that´s not good for my uses, I should have bought a push type.
  • 0

CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
User avatar
wyz2285
Major General
Major General
 
Posts: 2244
Joined: Sat Mar 06, 2010 7:50 am
Location: Porto, Portugal
Country: Portugal (pt)
Reputation: 12

Unread postAuthor: al-xg » Thu Mar 29, 2012 7:35 am

I just came across a flashing LED lamp project my sister did in technology class at school years ago.

It uses a cheap basic LED flasher IC (http://www.technobase.jp/eclib/OTHER/DA ... /m34xl.pdf).
Image
I just hooked up a MOSFET power transistor instead of the LED, and it now powers a 24W 12V solenoid.

Not something I'd be using, and there are many other ways to do this, but it's a very simple and cheap way to get full auto solenoid pulsing.

The rate of blinking is fixed on each chip, and it seems them come in 1, 2, 4, and 8 pulses per second.
  • 0

User avatar
al-xg
Colonel
Colonel
 
Posts: 643
Joined: Fri Jan 19, 2007 12:29 pm
Reputation: 0

Unread postAuthor: POLAND_SPUD » Thu Mar 29, 2012 11:29 am

I just came across a flashing LED lamp project my sister did in technology class at school years ago.
Pure awesomeness!! I knew there must be a part like this

f### you the NE555 timer!!
  • 0

Children are the future

unless we stop them now
User avatar
POLAND_SPUD
Chief of Staff
Chief of Staff
 
Posts: 5405
Joined: Sat Oct 13, 2007 4:43 pm
Country: Israel (il)
Reputation: 10

Unread postAuthor: wyz2285 » Thu Apr 05, 2012 12:05 pm

I just hooked up a MOSFET power transistor instead of the LED, and it now powers a 24W 12V solenoid.

care to elaborate?
Updata, bigger chamber.
Only missing the firing circiut.
  • 0

Attachments
IMG268.jpg
IMG269.jpg
IMG272.jpg
CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
User avatar
wyz2285
Major General
Major General
 
Posts: 2244
Joined: Sat Mar 06, 2010 7:50 am
Location: Porto, Portugal
Country: Portugal (pt)
Reputation: 12

Unread postAuthor: al-xg » Thu Apr 05, 2012 2:11 pm

I was just drawing out a wiring schematic, but then I realised there is another transistor involved (as I hadn't removed it from the circuit board...).

I've found some info on the original circuit:
http://membres.multimania.fr/ysirjean/D ... Signal.pdf
Weirdly the PDF lists two identical BC 239 NPN transistors. My circuit is identical but I have an M34-2L and a... well I'm not too sure what it is; "13C 55713 R5 E" is printed on it... it may just be used as an amplifier.

Using the M34-2L on it's own is awkward, as you'd end up bypassing the mosfet when linking up the ground wires...
Here's the drawing I was doing until i realised I didn't have enough electronic smarts :?
If you ignore the left hand bit, that's basically how a MOSFET is wired for this application.
Image
maybe someone more familiar with electronics can sort this out ?

Using a relay instead of the mosfet would work as the grounds would be separate.
  • 0

User avatar
al-xg
Colonel
Colonel
 
Posts: 643
Joined: Fri Jan 19, 2007 12:29 pm
Reputation: 0

Unread postAuthor: dewey-1 » Thu Apr 05, 2012 3:00 pm

@al-xg

The circuit you linked to is not even a flashing circuit.
It is 3 red LEDs in series driven by a NPN transistor.

I will make a schematic for you.

Keep in mind that the M34 has a fixed duty cycle and fixed frequency.
Not adjustable.
  • 0

Last edited by dewey-1 on Thu Apr 05, 2012 4:46 pm, edited 1 time in total.
User avatar
dewey-1
Major General
Major General
 
Posts: 1298
Joined: Wed Mar 28, 2007 10:24 am
Location: NE Wisconsin USA
Reputation: 0

Unread postAuthor: sharpshooter11000 » Thu Apr 05, 2012 3:19 pm

Is that a paintball tank? If so, what size is it (as in 20oz or 12oz or something)?
  • 0

My cannons | My QEV cannon |
User avatar
sharpshooter11000
2nd Lieutenant
2nd Lieutenant
 
Posts: 248
Joined: Sat Aug 06, 2011 1:34 pm
Location: UK
Country: United Kingdom (uk)
Reputation: 2

Sponsored

Sponsor
 


Unread postAuthor: wyz2285 » Thu Apr 05, 2012 3:59 pm

12oz co2 paintball tank, service pressure 124bar.
Thanks dewey-1, again :lol:
  • 0

CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
User avatar
wyz2285
Major General
Major General
 
Posts: 2244
Joined: Sat Mar 06, 2010 7:50 am
Location: Porto, Portugal
Country: Portugal (pt)
Reputation: 12

Unread postAuthor: dewey-1 » Thu Apr 05, 2012 5:18 pm

Here is the simplest method to use a M34-xx LED flasher on a solenoid.

There are several disadvantages compared to using dual 555 circuit that I have given to wyz.
  • 0

Attachments
M34-xx-Pulse-Driver.jpg
User avatar
dewey-1
Major General
Major General
 
Posts: 1298
Joined: Wed Mar 28, 2007 10:24 am
Location: NE Wisconsin USA
Reputation: 0

Unread postAuthor: wyz2285 » Thu Apr 05, 2012 5:57 pm

Yap I know, but when I'm still trying to make the dual 555 circuit work, I need something simple to test my solenoid on my guns, also training my welding technique.
  • 0

CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
User avatar
wyz2285
Major General
Major General
 
Posts: 2244
Joined: Sat Mar 06, 2010 7:50 am
Location: Porto, Portugal
Country: Portugal (pt)
Reputation: 12

Unread postAuthor: al-xg » Thu Apr 05, 2012 8:35 pm

The circuit you linked to is not even a flashing circuit.
It is 3 red LEDs in series driven by a NPN transistor


I reckon the circuit I have is a modified version, someone just decided to make the LEDs flash and substituted one of the transistors, but keeping the same PCB and thereby the same name code.
The left hand side NPN transistor has been swapped for the M34-2L and the LEDs flash.


On your schematic, R2 is reducing the voltage to the opto-coupler and r3 is a pull-down resistor for the MOSFET gate ?



Haha, just got the circuit out again to have a look, plugged it in, and now the LED flash green; they used to shine red or at least orange (although some red is still visible), would that suggest they're now getting a higher voltage for some reason ?
  • 0

User avatar
al-xg
Colonel
Colonel
 
Posts: 643
Joined: Fri Jan 19, 2007 12:29 pm
Reputation: 0

Unread postAuthor: dewey-1 » Thu Apr 05, 2012 10:36 pm

al-xg wrote:On your schematic, R2 is reducing the voltage to the opto-coupler and r3 is a pull-down resistor for the MOSFET gate ?

That is correct.

Here is a schematic for that link that has modified circuit.
  • 0

Attachments
m34-xx-al-xg.jpg
User avatar
dewey-1
Major General
Major General
 
Posts: 1298
Joined: Wed Mar 28, 2007 10:24 am
Location: NE Wisconsin USA
Reputation: 0

Previous

Return to Pneumatic Cannon Database

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MCRKilljoy, MSNbot Media, Yahoo [Bot]

Reputation System ©'