# AHS Robotics II Midterm Review

## 35 terms

### Fillet Feature

Rounds off corners and edges

### Shell Feature

Removes material from a solid body to create a thin-walled feature

### Extrude

Extending a sketch so it is a 3-D object

### Cut-Extrude

A 3-D cut that is applied to solid objects that have been extruded

### Sweep

Makes a feature from 2 sketches. Moves along a path

### Loft

Cuts or extrudes a solid model by removing material between 2 or more profiles

### Sketch Entities

includes lines, rectangles, circles, ellipses, polygons, slots, splines, and arcs

### Under Defined

The part does not have all of its dimensions

### Fully Defined

The part does have all of its dimensions and does not need any further dimensions

### Over Defined

The part has dimensions that contradict each other

### Sketch relations

Geometric properties established between points in the sketch. Such as equal, perpendicular, coincident, etc

### Examples of sketch relations

Coincident, parallel, perpendicular, fixed point, horizontal, vertical , midpoint, collinear, tangent, and concentric

Simply select two items (Ctrl + click on the second item) and go to the left window to select your relation

### To delete relations

Click the relation and hit the delete key

### Feature

All cuts, bosses, planes and sketches. Based on sketches (boss and cut), and applied features are based on edges or faces (fillet)

### Plane

Planes are flat and infinite. They are represented on the screen with visible edges. They are used as the primary sketch surface for creating boss and cut features

### Extrusion

Extend a profi9le along a path typically normal to the profile plane for some distance. The movement along that path becomes the solid model

### Sketch

A 2D profile. Created on flat faces and planes within the model. They are generally used as the basis for bosses and cuts, although they can exist independently

### Boss

Used to add material to the model. All bosses begin with a sketch

### Cut

Used to remove material from the model. Opposite of the boss. Begins as 2D sketches and remove material by extrusion, revolution, etc

### Fillets and Rounds

Usually added to the solid, not the sketch. By nature of the faces adjacent to the selected edge, the system knows whether to create a round (removing material) or a fillet (adding material)

How the model should be created and changed, is considered the design intent. Relationships between features and the sequence of their creation

### The Three standard sketch planes

Top, Right, and Front

### Rebuild vs Redraw

Redraw ill not cause changes to dimensions to take effect. Therefore, it is very fast. Rebuild regenerates the model. Depending on the complexity of the model, this can take more time

### Centerline

used as a reference line in a sketch. It is exactly like a regular line except for the fact that it does not have to be fully defined

### Mirror Entity

mirrors a sketched entity

### Offset Entites

used to create copies of model edges in a sketch. These copies are offset from the original by some specified amount

### Dangling Relations

Said to be dangling when they reference something that has been deleted or that is otherwise unresolved

### Different pattern types

Linear, circular, mirror, curve driven, sketch driven, table driven, and fill pattern

### Revolve Feature

Method that orbits a selected sketch and contours around its axis to create a solid feature

### Sweep

Creates a feature from 2 sketches, a sweep section and a sweep path. The section is moved along the path, thus creating a feature

### Chamfer

Creates a bevel feature on one or more edges or vertices

### Mass Properties

Can be used to make the mass properties of the part. Such as volume and mass

### Solidworks Simulation xpress

is an analysis tool to help judge whether a part can withstand real-world conditions