A heck of a thing from a thingiverse user named Robagon... https://www.thingiverse.com/thing:3515796 I seriously doubt I could ever have been able to get the Bowdens to print the rivets in this thing as a separate material. The Nimble's did it fine. This thing uses 5 materials. You start with one tool with TPU then after about 2mm in Z you switch the filament to a colored PLA. Anybody know what Robagon won???