ThinkFun the amazing Crankshaft SET !!

thingiverse

This amazing crankshaft set may seem ordinary at first glance. However, can you imagine a train running smoothly without one? A car shifting gears without its counterpart? Even mechanical birds rely on this crucial component to take flight. The set offers unparalleled flexibility by converting radial motion into vertical motion, and vice versa - a concept familiar to machinery enthusiasts like myself as "rotational / reciprocated motion." To ensure compatibility with other ThinkFun axles and connectors, this crankshaft set has been carefully dimensioned to fit the entire collection seamlessly. Don't forget to show your appreciation by hitting that like button if you found this helpful. P.S., feel free to print out the complete set file at once, saving time by avoiding individual prints. Update: After some tweaks, I've made a crucial addition - a 1.8mm hole to accommodate high load scenarios on the shaft. Simply insert a standard toothpick into the hole and break it off to secure the pin in place, just as shown in the accompanying image.