another HEAR valve flipbook
This is one of several recordings made of the HEAR valve on my GB Semi firing. It is recorded at 2000 frames per second. Focus and lighting aren't too great because the box that I have rigged up as a backstop was soaking wet from a water leak, so I was aiming up over my house and not able to focus directly on the gun. It was a huge pain just to get the gun in the frame while shooting at the angle I needed because there was nobody around to help me with the camera.
This recording was made to show the projectile leaving the barrel relative to the valve movement. Focus is pretty poor on this one so I may try to redo it sometime.
There is a plastic strip with marks every inch sticking out right next to the piston.
related linksflipbook measurement tool
my high speed camera
HEAR valve flipbook 1
yet another HEAR valve flipbook