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 :: 4 registered, 0 hidden and 54 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

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

The Team
Administrators
Global Moderators
global_moderators.png CS

AS-[WIP]-50

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
Sponsored 
  • Author
    Message

Unread postAuthor: smirpab » Mon Nov 05, 2012 1:00 pm

Hi all,

The project still ongoing, having received my adapter G36/M4 last Friday, I finally got to work on it.

So it's pretty simple, I cut all the dead volume of the room, once adapted to piston charger, you get this:
Image

I also ordered last month a prototyping PCB for Arduino Uno to put all the electronics:
Image

I'm still missing the charger that is being delivered, I will have to receive Wednesday to Thursday.
So soon find it for shooting video with a real supply of ammunition!
  • 0

User avatar
smirpab
Corporal
Corporal
 
Posts: 75
Joined: Sat Jan 23, 2010 6:50 pm
Location: France
Reputation: 0

Unread postAuthor: POLAND_SPUD » Mon Nov 05, 2012 1:51 pm

Nice
keep us updated

have you considered programming an attiny chip and putting the entire circuit on a perfoboard (for the final version naturally)?
that way you could make it more compact and still have arduino for other stuff
  • 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: smirpab » Mon Nov 05, 2012 1:58 pm

It is true that it is a good idea!
But I do not know programming set "Attiny".
  • 0

User avatar
smirpab
Corporal
Corporal
 
Posts: 75
Joined: Sat Jan 23, 2010 6:50 pm
Location: France
Reputation: 0

Unread postAuthor: POLAND_SPUD » Mon Nov 05, 2012 3:15 pm

http://www.youtube.com/watch?v=30rPt802n1k

or if attiny wouldn't be up to the job you might as well use an atmega chip
  • 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: smirpab » Mon Nov 05, 2012 3:42 pm

Thank you very much for the video.
If I do not have enough room to put my Arduino Uno in the carcass, I réviserai my choice ;).
  • 0

User avatar
smirpab
Corporal
Corporal
 
Posts: 75
Joined: Sat Jan 23, 2010 6:50 pm
Location: France
Reputation: 0

Unread postAuthor: smirpab » Tue Nov 13, 2012 5:07 pm

Some pictures of Developed :

Image

Image

Image

Image
  • 0

User avatar
smirpab
Corporal
Corporal
 
Posts: 75
Joined: Sat Jan 23, 2010 6:50 pm
Location: France
Reputation: 0

Unread postAuthor: smirpab » Mon Nov 19, 2012 1:33 pm

[youtube]http://www.youtube.com/watch?v=KIOoXGU7nVs&list=UUpT_F_af36MsUB9JXDsPhAg&index=1&feature=plcp[/youtube]
  • 0

User avatar
smirpab
Corporal
Corporal
 
Posts: 75
Joined: Sat Jan 23, 2010 6:50 pm
Location: France
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: Petitlu » Mon Nov 19, 2012 2:09 pm

Nice !!! :hello1:
  • 0

User avatar
Petitlu
Brigadier General
Brigadier General
 
Posts: 807
Joined: Fri Jun 03, 2011 4:52 am
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Mon Nov 19, 2012 2:35 pm

Oooooh very nice! Power is not extraordinary but I love the selectable rates of fire and reliable feeding, bravo!
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: smirpab » Mon Nov 19, 2012 2:47 pm

Thank you!

There will surely other test later
  • 0

User avatar
smirpab
Corporal
Corporal
 
Posts: 75
Joined: Sat Jan 23, 2010 6:50 pm
Location: France
Reputation: 0

Unread postAuthor: ThorSpuds » Tue Nov 27, 2012 10:35 am

Very nice! Love the design.
  • 0


ThorSpuds
Private
Private
 
Posts: 2
Joined: Tue Nov 27, 2012 10:33 am
Reputation: 0

Unread postAuthor: al-xg » Tue Nov 27, 2012 2:39 pm

Well considering it's only being used at 3 and 4 bar, there is scope for quite a bit of extra power as long as the flow through the 3/2valve is good enough to fill the chamber in time at higher pressures.


Can you adjust the rate of fire of the 3 round burst separately from the full auto?
When I was experimenting with my code I found that the 3 round burst seemed a lot cooler when it was faster than the basic full auto :)
  • 0

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

Unread postAuthor: smirpab » Tue Nov 27, 2012 3:41 pm

Thank you!

The rate remains the same for all, if I'm 8cp/s semi-automatic, when I pass in automatic or burst 3cps, I'll always be 8cp/s.
  • 0

User avatar
smirpab
Corporal
Corporal
 
Posts: 75
Joined: Sat Jan 23, 2010 6:50 pm
Location: France
Reputation: 0

Unread postAuthor: GonzoInferno » Tue Nov 27, 2012 6:11 pm

I really appreciate the steady progress on this project. Coming along nicely. And kudos to you for keeping to your original concepts. If keeping my boss happy (and wife and children and pets and etc) didn't take all of my time... oh the possibilities.
  • 0

User avatar
GonzoInferno
Private First Class
Private First Class
 
Posts: 30
Joined: Mon Nov 05, 2012 8:24 am
Location: New Orleans, LA
Reputation: 0

Unread postAuthor: smirpab » Thu Dec 13, 2012 3:18 pm

Hi all,

For two days, I could make a silencer for my pac.
It consists of a stainless steel tube 304L 1 "1/4" (Ø42mm). For noise reduction, I opted for the towel 5/6tours "professional" with behind wool insulation for tanks that are carried out in boiler.

It reduces a lot of noise, I was impressed, vacuum, I heard that the exhaust air out of the distributor.

Once everything is soldered, the more I machined around the poor:

Image

Image

Image

Image
  • 0

User avatar
smirpab
Corporal
Corporal
 
Posts: 75
Joined: Sat Jan 23, 2010 6:50 pm
Location: France
Reputation: 0

PreviousNext

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'