HAVOC-160 Crossbow Set - feed mechanism

thistledownsname

Ok, I realize that this is a prop, and doesn't necessarily need to actually function, but I've got a physical crafting project that this thing might be able to help me with.

Here's the prop that was released today.  It's got two versions - a box mounted gravity feed, and a circular ring clip.  I'm interested in the ring.  Specifically, what causes the bolts to feed circumferentially around the clip?  Clockwise or counter-clockwise is fine, but something has to make them go up and around the loop.  Or they're all gravity-fed from the top and have some sort of alternating allowance when it gets to the bottom of the loop.

There's also no visible way that the string is actually being pulled, but that can be done internally.  At the front of the stock there should really be something to attach the cantilevered upper segment to the lower segment, but with rigid enough materials you could do it as shown.

kaotkbliss

I'm guessing there's some sort of belt or chain inside the back of the cylinder that rotates the clip inside each time the trigger is pulled. The bottom bolt lines up with the string at the bottom of the rotation as it looks like the cylinder feeds into the side of the crossbow from the promo shots

 

I'm assuming there's a clip inside the cylinder or how else are the bolts staying in place and so neatly spaced?

Nightshift3D

As far as the prop goes, the cylinder inside rotates and the crossbolts are parented to it. Just rotate the magazine part in 30° increments and then move the bottom crossbolt in the zTrans direction to launch it. And use the shoot morph to unflex the bow and straighten the string.

As far as the actual weapon would go, it's assumed that the cylinder is rotated by some electrical means and there would be a mechanism to draw the string back. Neither of those would be visible so there was no reason to model them.