Flexi joint cutter

I present a cutter for flexi joints. The STL file is included, which needs to be added to the cylinder as negative part, and its location and dimensions should be changed to match the cylinder diameter. The cylinder should be trimmed at the bottom, to the level where both parts of the connection rest on the plate. The attached project shows an example for cylinders with diameters of 10 mm, 8 mm, and 5 mm. See short tutorial here: https://www.tiktok.com/@r73ch.3d.printing/video/7596848143728250134