StrmCkr

this is a long time project that has sat in my cad design phase for the better part of 6 years, with all the free time now applicable to me

i finally decided to bring the concept to life

this build is based on the real world Gau-19,

the reason i have chosen this is from the limitation of rotating air chambers adding extra chambers increases space by a lot, three barrels is the easiest to work with. 

this gun's internals for air chamber is based off the Nerf Long shot as dimensions are easy to attain online with out gutting my first edition, and working components are cheap and easy to effectively acquire. {springs,seals} 

this build features a unique brass breach  brass breach lower half.PNG   749.44KB   190 downloads

all components are 3d printed and designed in cad.  gau-19.PNG   327.09KB   208 downloads

this will be a DC powered device that uses air pressure to launch darts.

 a work in progress and this post is where i am at with the build so far.

Barrel:

 3 barrel setup.PNG   441.62KB   192 downloads

 3 barrel with race test fit.PNG   287.5KB   194 downloads

 brass breach lower half.PNG   749.44KB   190 downloads

Bearing Races:

 race lock ring.PNG   293.93KB   195 downloads

 race with bearings.PNG   378.84KB   211 downloads

 race locked ring test fit.PNG   837.92KB   209 downloads

 airchamber with front race and gear ring.PNG   428.4KB   192 downloads

 rear race on back plate.PNG   258.65KB   200 downloads

 airchamber race with bearings.PNG   408.92KB   192 downloads

Air Chamber:

 air chamber.PNG   203.91KB   194 downloads

 air chamber with gear+ back plate.PNG   308.65KB   186 downloads

 air chamber back seal.PNG   298.95KB   189 downloads

Piston:

 piston rods and rams.PNG   594.17KB   188 downloads

Breach support:

 support column.PNG   252.47KB   187 downloads

Breach Spring slide guides :

 breach sping slides.PNG   338.88KB   197 downloads

 test fit.PNG   346.76KB   208 downloads