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1.2.2 - Stage 1A (Fundamentals)

Objective: Learn the core building blocks of 3D modeling: 2D sketches, constraints, and turning those sketches into parts with Extrude.

Now that your workspace is set up, start designing. Almost every robot mechanism begins as a 2D sketch that is extruded into a 3D part.

Use the Team 2064 Onshape Classroom as your workbench, and follow the FRCDesign.org tutorials.

Open your working document first so mates and constraints are saved in the team folder, where mentors can review them.

  1. Open the Stage 1A assignment portal.
  2. Launch your document from the classroom link. Do all sketching and assembly work in that file.
Enter the Stage 1A workbench

Work through these three sections in order. Read the FRCDesign instructions, then do the steps in your Onshape document.

Part 1: Studio fundamentals and setup. How Onshape handles sketches, planes, and document organization. Open section 1

Part 2: Designing plates. Techniques for 2D plates, the most common custom parts on an FRC robot. Open section 2

Part 3: Assemblies and mates. Connect parts into a working mechanism. Open section 3

  • Create a sketch on a specific plane (Top, Front, or Right)
  • Use constraints (coincident, vertical, horizontal) to lock a drawing
  • Dimension a part with the D key
  • Use a solid extrude to turn a 2D shape into a 3D part
  • Use fastened and revolute mates to connect parts in an assembly
  1. Click Submit in the Onshape Classroom.
  2. Tell a CAD mentor or your subteam lead. They will review mate logic and sketch constraints in your workbench file.