Some Hackaday readers and writers can identify the components, so we think his coaster model belongs here. Like many folks in this field, he’s built K’nex models to get a handle on construction.

TPED has two main accomplishments that they are proud to have created – the K’NEX coaster and SHOVE. SHOVE is an interactive trashcan, modeled after PUSH the Talking Trash Can at Disney. Jared Geyer, ...