The file '3DPD50B5TY4 Mechanical Mechanism Type 4 For 3d Printing 3D Printer Model' is (STL) file type, size is 284.7KB.
Only the box is included here, the iris mechanism is not included in the attachment.When you drive the top cover, the center hole can open or close gradually. The center hole is diameter 50mm.https://youtu.be/3A7UosrudCw
