Rectangular stop (a new look) END

“You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete.” ― R. Buckminster Fuller Development of new technologies of additive manufacturing requires a re-design of many things. In a previous publication I was made three designs of modern stopper. See details: https://grabcad.com/library/rectangular-stop-a-new-look-1 https://grabcad.com/library/rectangular-stop-a-new-look-final-1 I thought I was finished with this topic. But the study of t splines given the opportunity to publish one more bionic version of this thing. Converting meshes to T- splines take lot of time! The model has a large size (250 megabytes), and processed slowly!