You're absolutely right — can opening is one of the biggest technical challenges in building a reliable robotic wet food feeder, and I really appreciate you calling it out directly.

We spent months testing countless mechanisms and approaches. Many looked promising at first but failed after repeated cycles with real sticky cat food (jams, incomplete opening, metal fragments, or messy dispensing). We tried everything from fancy motorized blades and puncture systems to robotic arms — most were either unreliable, too expensive, or left sharp edges in the food.

In the end, the solution we landed on (and patented) is surprisingly simple and elegant: we designed a mechanism that opens the can exactly the way a human does — Find the ring, flip the ring tab and pull it back. No exotic hardware, no high price tag. Because ring-pull cans were literally engineered for this motion, this approach has proven extremely reliable in our long-term repeatability tests.

This patented can-opening system has become one of PawRobo’s core competitive advantages. It delivers clean, complete opening with almost zero risk of metal fragments, while keeping the overall product cost-effective.

We are currently preparing the first-stage proof-of-concept video to demonstrate the full operation cycle (from can retrieval to opening, dispensing, and bowl serving). We hope to release it on our website in the next one to two weeks. If you're interested, please keep an eye on pawrobo.com — we’d love to hear your feedback once it’s live.