9. Adam-style Syringe Gun

I'm in love with the imagery from BioShock, so Project #9 is going to be based off one of those 'Adam' syringe guns from the game. But, y'know, radder.


Here's the render I'll be using for reference.

I've assembled some components.
What we have here is a VW Alemite Lube Gun (enter 'lube gun' into a search engine at your own risk).
I filed the barb catches off the main rod so it would come apart like this ... this will form the base of the syringe.















Here's an iron 'nipple couple' that will form the crux piece connecting the 'serum' to the body of the syringe. (enter 'nipple couple' into a search engine at your own risk). I ground a flat place into it in order to drill a half-inch hole to accommodate the rod. I hoped the hole would be more offset, but we'll see what happens.















This is a scientific glass bottle that will fit into the nipple couple.














Alemite rod with nipple. The bit I used to drill the pilot hole was too short to go through both sides of the nipple so I had to calculate the exit hole ... as you can see I didn't do such a great job, the exit's kinda rough. The 8-shaped exit will be a valuable reminder about considering bit length before diving in ...















These glass test tubes aren't in the original ref but I have a crapload of them rolling around in my glass-box so's I'm gonna use 'em. The copper bits are 1/2" tube cut down to 1-1/2" length pieces. Nibco, available at Home Depot, makes the thickest, most illustrious copper tubes and fittings and the colors are nicer if you anneal. Be careful not to make any forceful toolmarks or the tubes will warp and the glass won't fit anymore ... the glass tubes are pretty fragile so it's easy to crush one - or four - trying to jam them in (note the lonely pile of tubeless fittings in the lefthand corner).
The copper caps are just that ... they're called caps and they come threaded or unthreaded so make sure to check. Threaded caps won't fit.















This part will hold the bottle. I tarted it up with some notched washers and tiny tube straps. The 'slotted screws' are really just globs of solder with lines pressed into them. I discovered that real screws protrude in too far and prevent the bottle from fitting.