Lee Hayde, CSTANJ Treasure shared his stundents work. 
This extensive roller coaster complex was designed, built, and wired by a student at Roxbury High School.   It was created from the parts contained in 7 individual Knexroller roller coaster kits, all linked together to make one large circuit.   The ordinarily battery-powered motors were wired in parallel so that all motors are powered by a single USB connection.
Chats occur on the CSTA’s Community rather than on Twitter.  They are scheduled for 4pm PT/7pm ET only on the third Wednesday of each month.  The next few chats are on February 21, 2024, and March 20, 2024