Quick-Switch Collapsing VR Stock (Switching One or Two-Handed)

thingiverse

I needed a way to quickly switch between using a two-handed rifle, and using two hands independently (eg to reload the rifle, interact with the environment, or use pistols or other weapons), so I designed this collapsing VR stock. The "lock" in the unfolded position is simply due to gravity and natural usage: When the buttstock is pulled all the way out, it hangs down slightly and any forward force that might collapse it is redirected into a notch that prevents it from collapsing. To collapse it, you have to lift it slightly so that it doesn't hang down, which aligns it straight with the receiver and clears the notch, allowing forward force to slide it into the receiver. The lock for the folded position is simple spring tension with a bolt-like handle attached to the rotating shoulder pad. I designed the bolt so that you could push it inward (towards the shoulder pad) to put the largest part of the bolt in contact with the spring lock, to help keep it in place, or you could pull it outward (away from the shoulder pad) to put the smallest part of the bolt in contact with the lock and thus help to unlock it and unfold it into a full stock. Personally, I've found I just leave the bolt handle in the outward "unlocked" position and it seems to stay locked securely enough, while still allowing me to easily unfold the stock with a slight tug on the shoulder pad (as shown in the gif). Original design was much smaller in diameter, but proved too fragile, so had to increase the thickness of the sliding rail, which increased the weight. I'm hoping to go back and skeletonise it or find other ways to reduce the weight at some point. I've got touch controllers so that is what it is made for, but you can design connectors for other controllers. More discussion in this article: https://www.htxt.co.za/2019/12/18/3d-print-allows-you-to-switch-between-one-and-two-handed-vr-weaponry/