Earlier quoted context omitted.
Reliability now isn't done with the same methods as it was then. Back then, the good stuff might have been good because the motor was big. The modern good stuff probably has a brushless motor that can prevent stalls. It doesn't matter if it's big or small, the computer won't let it overheat, so they can make it smaller to save money that they can spend on whatever part is the actual failure mode. The trouble is findi…
> The trouble is finding manufacturers that actually do that, rather than just using a tiny motor with no computer and plastic gears with no torque sensing. If you design things with old fashioned methods, you need to use old fashioned heavy parts. Oh yeah. Like Surefeed smart cat feeders. They don't use end reed or contact switches to control the lid motor - they use current sensing on the motor and stop it when the…
They probably wouldn't even need a reed switch, just a wad of foam for some buffering plus a more sensitive stop algorithm. Or better yet, don't give the motor enough current to shred gears even at full stall.