Uploaded December 2024 | Updated September 2026, 2 weeks ago

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Impossible Pyramid Passthrough by RJDesign on Printables
httpd://printables.com/model/929314-impossible-pyramid-passthrough/files

Note Dec 16, 2024:
Unfortunately, this design appears to have disappeared from Printables.
If anyone finds the link for this please let me know.

Neat design!
He had a few more similar models.