Different people have Different speeds in $things. If one piece of the system is at a different (slower/ faster) speed where majority pieces are on another but

Different people have Different speeds in $things. If one piece of the system is at a different (slower/ faster) speed where majority pieces are on another but more or less similar speed to each othet, the one piece is going to get burnt quick. Options... use gears at touch points to match speed, or have a robust outer layer to eliminate impact of friction, or Try to control speed to match the system A combination of these options, may work. Challenge is to identfy the required option and apply what works for a given situation, which is another activity needing quite some brain cycles. Just an observation... Hope your upcoming life is pleasant.