Alright everyone, Iíve saved the best for last.
Modular Semi-automatic Titan
Thatís right. Modular. Anyone who tries to open the Vulcan hates the sheer amount of screws in deep, narrow wells.
Here you can see my two Vulcans. One will be useless by the end of this part.
So hereís how it went down. I put a hobby hinge, ďmiddle hingeĒ type, into the bottom where the tripod goes. It is actually straight, I donít know why it doesnít look that way.
You can see the first cabinet latch back by the handle.
And hereís the second:
These two hold this thing together incredibly well. Iím thinking about putting another on the front, but so far I havenít needed it and Iíve done quite a bit of firing with it like this.
This can be applied to basically any Vulcan as long as youíre precise with the placements. These two I have here are highly recommended spots. They fit nicely and work very well.
To make the Titan modular insert, youíre going to need the plunger and the rotation arm mechanism from the other Vulcan. You could easily use something other than the rotation arm mech, but it is a very viable option.
Take your plunger and take off the plunger head and spring. Keep the stock spring. Take this nub on the inside:
And carefully cut it down to look like this:
You need to cut the spring loaded catch off of the rotation arm and the big piece that juts out of the side of it. I had a picture of this, but my camera seems to have eaten it. You can see it in subsequent pictures.
Now put the spring back on, and attach the back of the rotation arm mechanism to the shaved down plunger like so:
You can see that I used the pin from the rotation arm mechanism through the plunger, then the plunger head screw through a predrilled hole and then an old nerf screw (like on the manta or triple strike) goes perpendicular to those two. You will need some thing to stop the spring. I used a cut down, fluted nail.
This is important. For the titan, here is what I did:
On the pump (bottom left), remove the tubing from the release valve, and then cut off the release valve and plug it with goop. Cut the pump tube down to 3Ē away from the end of the big circle, making the overall length about 3.5Ē.
On the pressure gauge, remove the tubing and then remove the spring from the tubing. Goop in a bic pen shell to act as a solid support, then secure it with some hot glue.
Finally, for the tank, put in the long tubing from the release valve (taking out the original short tubing of course), and put the spring into it from the pressure gauge.
Now to attach the rotation arm to the pump shaft, predrill two holes in it with a bit no bigger than 1/8Ē and no further down than 7/8Ē. Take the bolts youíll be using and slowly feed them though the holes and take them back out again. Line up the end of the arm at a point 3.75Ē away from the pump head and predrill the pump shaft though the arm with the 1/8Ē bit. Now you can widen the holes on the pump shaft to whatever size you need. I needed 3/16Ē, and you shouldnít need any more than that.
Now feed the first bolt through and add washers between the arm and the shaft enough so that the arm is above the plunger tube level. Close it off with a washer and a nut. Then feed the second through and close it off the same way. You should have this:
Now cut down the bolts and the plunger shaft like so:
Now, carefully and precisely, dremel out the insides of you Vulcan to accommodate the pump here:
The cut needs to be just right so that when closed, the Vulcan shell holds the pump tightly but closes securely. This took me two days, and Iím really really good with a dremel.
DON'T POST JUST YET: PICTURE LIMIT
And make some basic cuts to put the Titan tank here:
If you look carefully at this picture you can see the notch that has to be made to route the tubing from the tank to the pump. Also, you can see the notch for the pressure gauge by the left battery connector (the one without the X).
Now you can add your keyring:
And closed up it looks like this:
Because of the cuts you made to fit the Titan tank, the Mega Missile will now move around. To keep it still, I shaped a small ľĒ piece of plexi into this:
And attached it here:
And here is the mega missile keyring:
Now you need to relocate those batteries, because the titan tank takes their old spot:
I also added a screwdriver holder, so I can always field strip it and set it up to any of the modes I like best:
And the overall monster:
With a 2í Petg Barrel and perfectly fitting darts Iím getting about 150í, but I think that Iím slightly leaky. To prime you pull the Vulcan trigger and watch the power gauge go up until itís where you want it. Then fire off with the keyring. Iíll probably breech and maybe deodorant clip the barrel later.
In order to strip it, you just pop it open and take out the screw driver. Take off the top internals cover and the gear train cover and slap in or out whatever you want. You can go from Auto fire only to Auto fire + 100' semi-auto backup, to 150'+ main gun very quickly. The ultimate in modular.
This is one mean sucker, and since I minimized the front more (see the last pic) itís even meaner to have looking down at you. I have a great paintjob planned for this, but it has been rainy most of the week here.