GrabCAD
This model is created as instructed in given YouTube link. The problem was occurred when the cylinder of same diameter as of tube was created so I had to increase the cylinder diameter in order to make the design exist.
I have uploaded .CATPart as well as .stp format file of this design.
Direct link to the original creator's page
Click the "View on GrabCAD" button above to visit the original model page on GrabCAD. You can download the CATIA, RENDERING, STEP / IGES file directly from the creator's page for free.
This model is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
Yes, this model is available as a free download on GrabCAD. Some creators accept tips or donations.
Check the license (see original page) on the original GrabCAD page. Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer.