Onshape Top-down Skeleton Modeling - Creating an Excavator Arm
This course will teach you the strengths of skeleton top-down design methodologies, as well as how to employ them successfully in complex 3d part and assembly designs. Software required: Onshape.
What you'll learn
Have you ever struggled to make changes to large assemblies in your CAD package? In this course, Onshape Top-down Skeleton Modeling - Creating an Excavator Arm, you'll gain the knowledge and practice needed to create your own top-down skeleton sketch driven assembly. First, you'll explore the advantages of various modeling techniques, including bottom-up design, middle out design, skeleton top down design, and master model top down design. Next, you'll discover how to create a kinematic layout sketch which employs top down skeleton modeling techniques, allowing you to validate your design intent early, and drive your individual 3D parts. Finally, you'll learn how to assemble these parts, as well as how to update and work with your assembly. When you're finished with this course, you'll have the skills and knowledge of skeleton top-down design techniques needed to create your own mechanical designs. Software required: Onshape.
Table of contents
- Introduction & Design Requirements 3m
- Creating a Constraints Sketch 3m
- Creating a Kinematic Layout Sketch 6m
- Adding Hydraulic Cylinder Mounting Locations 4m
- Adding Hydraulic Cylinder Representations 4m
- Selecting Off the Shelf Components 3m
- Selecting Bucket Hydraulic Cylinder 3m
- Validating Range of Motion Meets Requirements 4m
- Introduction, Review of Main Boom, Start of Main Boom Sketch 4m
- Adding Profile to Main Boom Sketch 6m
- Creating First 3D Features of the Main Boom 7m
- Shelling Main Boom, Driving Thickness with a Variable 3m
- Completing All the Features for Half of the Main Boom 8m
- Completing the Main Boom 1m
- Review of Secondary Boom and Start of Sketch 3m
- Adding Profile to Secondary Boom Sketch 6m
- Creating Secondary Boom Features, Trimming Sketch Entities 6m
- Completing the Secondary Boom & Module Summary 4m
- Introduction to Module, Review of Bucket, and Start of Sketch 3m
- Finishing the Bucket Driving Sketch 5m
- Creating the Bucket Using Variables 5m
- Creating Variable Driven Bucket Teeth 6m
- Creating the Push Link 5m
- Creating the Guide Link 3m
- Review of Hydraulic Cylinder and Challenge 2m
- Starting the Hydraulic Cylinder Driving Sketch 6m
- Finishing the Hydraulic Cylinder Driving Sketch 4m
- Creating the Hydraulic Cylinder Parts 7m
- Using the First Cylinder to Quickly Make the Second Cylinder 2m
- Summary 1m
- Introduction and Starting the Excavator Arm Assembly 9m
- Adding the Bucket, Guide Link, and Push Link to Our Assembly 7m
- How to Work with Assemblies 9m
- Creating the Hydraulic Cylinder Assembly & Challenge 7m
- Finishing the Bucket Hydraulic Cylinder Assembly 2m
- Adding the Secondary Boom Hydraulic Cylinder Assembly 5m
- Adding the Bucket Hydraulic Cylinder Assembly 4m
- Adding the Main Boom Hydraulic Cylinders 5m
- Last Few Things and Module Review 6m
About the author
Andrew Peterson has had a productive career as a Mechanical Design Engineer in the biotech, greentech and consumer product industries. Having setup, used, and taught various CAD tools including ProE, SOLIDWORKS, Inventor and Onshape throughout his career, he's excited to share industry best practices with the Pluralsight community. He enjoys building robust CAD models that solve difficult engineering problems. He particularly enjoys building designs that employ top down modeling techniques, an... more