Notes /highlights from getting started with onshape talk by [[User:Matt]] as a part of [[K-Scale_Lecture_Circuit]][[File:Onshape notes.png|400px|thumb]]====== Starting with 2D Sketches ======Begin CAD designs with 2D sketches on planes, then extrude to create 3D shapes. ====== Dimensioning ======Proper dimensioning ensures accuracy, transforming sketches from blue (undefined) to black (fully defined). ====== Extrude Tool ======Converts 2D sketches into 3D objects. Options like "new," "add," and "remove" are key for modifying shapes. ====== Rollback Bar ======Allows reverting to previous steps in the design, useful for troubleshooting and understanding the sequence of operations.

===== Starting with 2D = Editing Sketchesand Maintaining Integrity ======Begin CAD designs with 2D sketches on planesChanging a sketch updates all dependent features, then but deleting a sketch can cause errors, emphasizing careful management of dependencies. ====== Extruding Specific Shapes ======Select specific parts of a sketch to extrude to create 3D shapes, allowing for complex and controlled modeling. ====== Symmetric Extrusion ======Extrude a feature equally in both directions from a central plane for balanced and symmetrical parts.

===== Dimensioning =Multiple Parts Management ======Avoid creating multiple disconnected parts within a single part studio. Use assemblies

Proper dimensioning ensures accuracy, transforming sketches from blue (undefined) ====== Extruding Closed Shapes ======Only closed shapes can be extruded. Converting lines to black (fully defined)construction lines helps define closed shapes without affecting the extrusion process.

===== Extrude Tool =Boolean Operations ======Combine multiple parts into one using Boolean operations, though designing parts separately is often advised for clarity and simplicity.

Converts 2D ====== Trim Tool ======The Trim tool helps clean up sketches into 3D objects. Options like "newby removing unwanted lines and intersections," "add," and "remove" are key for modifying aiding in creating complex shapes.

===== Rollback Bar=Advanced Sketch Relationships ======Besides basic dimensions, you can define angles and even perform arithmetic operations within dimensioning.Allows reverting to previous steps This includes converting units directly in the designdimension input (e.g., useful for troubleshooting and understanding the sequence of operationsadding inches to millimeters).

===== Using Constraints =Fillet Tool ======Filleting edges not only improves aesthetics by rounding corners but also reduces stress concentrations, making parts stronger.Filleting can both add and remove material, depending on whether it’s applied to external or internal edges.

Applying constraints like coincident====== Creating Assemblies ======Assemblies allow you to bring multiple parts together and define their interactions.Parts can be fixed in space or mated using different types of mates (e.g., perpendicularfasten, and parallel defines precise relationshipsrevolute).Fastened mates lock parts together in a specific orientation, making the design robust and easier to modifywhile revolute mates allow rotation around a fixed axis.