Alien Cow Farmer Puzzle

See https://youtu.be/13rdK3BD5A4 for description.

This is a slider puzzle that can be printed as separate pieces then assembled together. The Sandwich part can optionally be glued to the Enclosure part.

2021-03-29 EDIT - The first print had tolerances that were too tight to slide. I'm uploading a new version that is larger that should assemble and slide together better. I can't figure out how to modify the STL files in this upload, so I'll upload a completely new project.