CHAPTER 7 : 3D Modelling March 10, 2026March 10, 2026| mohinimishraa10@gmail.commohinimishraa10@gmail.com| 0 Comment| 3:50 am Categories: Back to: Robotics (ISC Class XI)CHAPTER-7 Previous Lesson CHAPTER 6 : Frames and Reference Frames Lesson 6 within section New Section. Next Lesson CHAPTER 8 : Planar Mechanisms Lesson 8 within section New Section.