Anymore info on the PLC? I am very interested! Chris. b
On May 2, 11:33 am, Mark_123522 <[email protected]> wrote: > Ben: > OK, I get it. > 555 runs the solid state relay, and relay runs the high pressure air > valve. > Using the solid state relay solves all the high current switching > problems - cool design! > > Mark > > On May 1, 9:10 pm, Ben Holko <[email protected]> wrote: > > > > > > > My development marker is just a 24v 1000psi air valve hooked up to a > > barrel. The 555 one shot circuit works by when feeding an input (pressing > > fire) it switches a solid state relay for duration (N). Where N is set by > > the combination of a capacitor and resistor. I used a pot for adjustability > > of the relay duration, this gives me dial-in adjustability from 0 to about > > 0.5 seconds. The relay operates the air valve. It works, and works very > > well, the problem with self-made markers is reliable reloading.....musket > > style operations are actually fairly easy. So I am using this to control > > the firing (amount of time the lead valve is open) and you are using it for > > essentially the same thing, except you have lower pressure and are feeding > > the magazine with air as opposed to the barrel. > > > What manufacturer/part # is your Nano PLC? > > > Ben > > > -----Original Message----- > > From: [email protected] [mailto:[email protected]] > > On Behalf Of Mark_123522 > > Sent: Sunday, 2 May 2010 3:53 AM > > To: R/C Tank Combat > > Subject: [TANKS] Re: Got PaintBall Feed Figured out!!!!! > > > Ben: > > What were you timing? Why were you timing it? > > The 555 sounds good for a DYI. > > > I think I need 3 timers for my application. > > One to shut off the trigger, about 50 milliseconds after the trigger is > > initiated. > > Another to delay the initiation of the magazine air pulse. > > Another to time the duration of the magazine air pulse. > > > You can get a "Smart Relay" or a "Nano PLC" for as low as $80. > > They are fully programable, you could do about any sequencing job with one. > > The one I ordered has 6 inputs, 4 relay outputs, and a small display. > > It runs off of 24 volts and is industrally hardened. > > With the display, I can adjust all the timing in the field, if necessary. > > > Ben: Thanks for the offer of help, but I am going to go the "lazy mans way". > > Also: I have a time constrant - theres only a few weekends to get the tank > > ready for the Gettysburg Pensyvania battle! > > > Mark > > > On Apr 29, 6:16 am, Ben Holko <[email protected]> wrote: > > > Nice work Mark, this is a good looking setup. > > > > The timing portion of your reload pulse can be accomplished by building a > > > one-shot 555 timer circuit. I built one exactly the same to control the > > > 24v firing valve I have for the homemade marker, so just let me know if > > > you need a hand with that. > > > > Ben > > > > -----Original Message----- > > > From: [email protected] > > > [mailto:[email protected]] On Behalf Of Mark_123522 > > > Sent: Thursday, 29 April 2010 10:24 AM > > > To: R/C Tank Combat > > > Subject: [TANKS] Re: Got PaintBall Feed Figured out!!!!! > > > > Here is the 63 cubic inch air tank, with the oxygen regulator attached. > > > See the blue, electric, air > > > valve.http://i192.photobucket.com/albums/z65/mm123521/HPIM0869.jpghttp > > > ://i192.photobucket.com/albums/z65/mm123521/HPIM0870.jpghttp://i192.ph > > > otobucket.com/albums/z65/mm123521/HPIM0871.jpg > > > > Here is the gun and copper tube magazine. > > > The gun rotates about the paintball feed tube when it elevates (no > > > elevate servo > > > yet):http://i192.photobucket.com/albums/z65/mm123521/HPIM0872.jpghttp: > > > //i192.photobucket.com/albums/z65/mm123521/HPIM0873.jpghttp://i192.pho > > > tobucket.com/albums/z65/mm123521/HPIM0830-1.jpg > > > > For a pressurized , tubular, magazine to work the end must be blocked off. > > > See the black, plastic, screw on, cap. > > > Remove the cap to load paintballs, screw it back on to seal off the > > > loading hole. > > > The cap and loading hole are accessable from the top of the turret. > > > Pictures show the hinged turret open. > > > > > >http://i192.photobucket.com/albums/z65/mm123521/HPIM0873-1.jpghttp://i > > > 192.photobucket.com/albums/z65/mm123521/HPIM0877.jpghttp://i192.photob > > > ucket.com/albums/z65/mm123521/HPIM0875.jpghttp://i192.photobucket.com/ > > > albums/z65/mm123521/HPIM0876.jpg > > > > This is the trigger actuator. > > > It is a 24 volt, DC relay, with an extension soldered on to the aramature. > > > The aramature extension pushes the trigger. > > > Works very good, because the gun has a "hall effect" trigger sensor > > > that requires very little force to > > > actuate.:http://i192.photobucket.com/albums/z65/mm123521/HPIM0878.jpgh > > > ttp://i192.photobucket.com/albums/z65/mm123521/HPIM0879.jpg > > > > Mark > > > > On Apr 28, 6:05 pm, Mark_123522 <[email protected]> wrote: > > > > I built Frank Pittelli's, air assisted, "Tubular Magazine", > > > > paintball feed > > > > system:http://www.rctankcombat.com/articles/tubular-magazine/ > > > > > and was dissapointed when it did not work. > > > > I tapped my barrel and ran a hose to the magazine as described in > > > > the "How To" article. > > > > There was practally no air pressure available to push the paintballs > > > > down the magazine. > > > > I was dissapointed, after building the system, drilling holes in my > > > > turret and barrel, etc, and it not working. > > > > > BUT: > > > > > I salvaged the idea. > > > > I got a 24 volt, electric operated air valve. > > > > I supply the valve with 60 PSI from a small welding (oxygen) > > > > regulator. > > > > The oxygen regulator is tapped into the 450 PSI, regulated pressure, > > > > from my 63 cubic inch air tank. > > > > > It is so powerfull that it will feed paintballs uphill! > > > > If you turn up the pressure, it will expell the paint ball out the > > > > barrel at low velocity. > > > > If you turn up the pressure to 125 PSI, it will move the paintballs > > > > with such force as to break them in the magazine! > > > > > Right now, I am operating the air valve manually. > > > > It only takes a very, very, very short burst of air to move the balls. > > > > > When it is finished, it will include a timing system that will > > > > perform the following sequence: > > > > 1 RC transitter signels "fire" > > > > 2 Rc reciever turns on a "servo switch" to activate the timing system. > > > > 3 timing system triggers the firing solenoid on the gun, and gun > > > > fires > > > > 4 timing system waits for .5 seconds, then pulses the air valve to > > > > move paintballs down the magazine, for the next shot. > > > > > The timing system delays the burst of air to the magazine, until the > > > > gun has finished shooting the paintball. This keeps the magazine air > > > > demand from interfering with shooting the paintball. > > > > The system will have adjustable air pressure(the oxygen regulator), > > > > and adjustable air pulse duration (from the timing system). > > > > > Tubular magazine is from 3/4 inch copper tubing, and holds 40 balls. > > > > It has a 45 degree elbow, a 90 degree elbow, and two straight > > > > sections. > > > > > When complete, I will post pictures of the system. > > > > > Mark > > > > > -- > > > > You are currently subscribed to the "R/C Tank Combat" group. > > > > To post a message, send email to [email protected] To > > > > unsubscribe, send email to [email protected] > > > > Visit the group athttp://groups.google.com/group/rctankcombat > > > > -- > > > You are currently subscribed to the "R/C Tank Combat" group. > > > To post a message, send email to [email protected] To > > > unsubscribe, send email to [email protected] > > > Visit the group athttp://groups.google.com/group/rctankcombat > > > > -- > > > You are currently subscribed to the "R/C Tank Combat" group. > > > To post a message, send email to [email protected] To > > > unsubscribe, send email to [email protected] > > > Visit the group athttp://groups.google.com/group/rctankcombat-Hide > > > quoted text - > > > > - Show quoted text - > > > -- > > You are currently subscribed to the "R/C Tank Combat" group. > > To post a message, send email to [email protected] To > > unsubscribe, send email to [email protected] > > Visit the group athttp://groups.google.com/group/rctankcombat > > > -- > > You are currently subscribed to the "R/C Tank Combat" group. > > To post a message, send email to [email protected] > > To unsubscribe, send email to [email protected] > > Visit the group athttp://groups.google.com/group/rctankcombat-Hide quoted > > text - > > > - Show quoted text - > > -- > You are currently subscribed to the "R/C Tank Combat" group. > To post a message, send email to [email protected] > To unsubscribe, send email to [email protected] > Visit the group athttp://groups.google.com/group/rctankcombat- Hide quoted > text - > > - Show quoted text - -- You are currently subscribed to the "R/C Tank Combat" group. 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