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. ====== Using Constraints ======Applying constraints like coincident, perpendicular, and parallel defines precise relationships, making the design robust and easier to modify. ====== Editing Sketches and Maintaining Integrity ======Changing a sketch updates all dependent features, but deleting a sketch can cause errors, emphasizing careful management of dependencies.

===== Starting with 2D Sketches= Symmetric Extrusion ======Extrude a feature equally in both directions from a central plane for balanced and symmetrical parts. ====== Multiple Parts Management ======Avoid creating multiple disconnected parts within a single part studio. Use assemblies ====== Extruding Closed Shapes ======Only closed shapes can be extruded. Converting lines to construction lines helps define closed shapes without affecting the extrusion process. ====== Boolean Operations ======Combine multiple parts into one using Boolean operations, though designing parts separately is often advised for clarity and simplicity. ====== Trim Tool ======Begin CAD designs with 2D The Trim tool helps clean up sketches on by removing unwanted lines and intersections, aiding in creating complex shapes. ====== Sequential Feature Order ======The order of features (like planes, then extrude sketches, and extrusions) in the feature list is crucial. Moving a feature before its dependencies will cause errors. ====== Advanced Sketch Relationships ======Besides basic dimensions, you can define angles and even perform arithmetic operations within dimensioning.This includes converting units directly in the dimension input (e.g., adding inches to create 3D shapesmillimeters).

===== Dimensioning =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.

Proper dimensioning ensures accuracy, transforming sketches from blue (undefined) ====== Creating Assemblies ======Assemblies allow you to black bring multiple parts together and define their interactions.Parts can be fixed in space or mated using different types of mates (fully definede.g., fasten, revolute).Fastened mates lock parts together in a specific orientation, while revolute mates allow rotation around a fixed axis.