There as been lots of progress in terms of getting the pump action to activate the falling block breach. This new linkage system smoothly moves the breach up to receive the next canister, and then reset when the pump stroke is reversed.
Here are some other pictures of the assembly in general.
This project is being worked on as part of a new partnership between myself and a friend of mine, Ivan Owen (the gentleman with the beard in the videos) and we are going to be posting the final video and many more crazy builds on our Youtube channel (formally Ivan's channel) Danger First. If you like this sort of project, please follow us there to get updates on our bigger projects and give us feedback!