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.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0870.jpg http://i192.photobucket.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.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0873.jpg http://i192.photobucket.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.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0877.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0875.jpg http://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.jpg http://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 at http://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 at http://groups.google.com/group/rctankcombat
