Hey all! I’m working on a project that’s best described as a “auto-movable shelf.” It’s a vertical platform that should raise and lower quickly, then automatically lock into place. I’d then place a bunch of weight (like, several hundred pounds) on the shelf.
The shelf never needs to move while the weight is on it; it’s an entirely static load. So, I figure I can “cheat” and use small/less-torquey motors to move the relatively light shelf platform, and then use some sort of brake or locking mechanism to support the full load without burdening the motor. I want the (unloaded) shelf to move quite quickly, so I’m thinking either a belt drive or rack and pinion system - sadly a leadscrew just won’t work.
I’ve found several electrically-actuated ratchets and brakes, but they’re meant for serious industrial automation and run in the hundreds of dollars. So: does anyone know of a cheaper maker-grade braking/locking mechanism? Thank you!