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Mill Design and Toolpaths

Design Module

Mastercam University ® Mill Design and Toolpaths Design Module Course GuideStudent/Instructor VersionDate: July 2013Copyright © 2013 CNC Software, Inc.— All rights reserved.Software: Mastercam X7TERMS OF USE Use of this document is subject to the Mastercam End User License Agreement.A copy of the Mastercam End User License Agreement is included with theMastercam product package of which this document is part. The MastercamEnd User License Agreement can also be found at:http://mastercam.com/Legal/LicenseAgreement/

Contents

Welcome

Plan of study

Recommended course prerequisites

Course description

Course timeline

Testing

Mastercam University course tips and tricks

How to use this guide

Module 1: Design

CAD Overview

Power Mount


Design Module

Power Mount

Work Coordinate System (WCS) Setups

30-Degree Clamp

Bike Caliper

Stepped Block

Triple Tree

Shell Connector

Soccer Ball


Design Module


Design Module

Welcome This guide accompanies the Mastercam University™ Mill Design and Toolpaths online course. Mastercam University online courses are self-paced video courses that teach con-cepts and techniques in short lessons, followed by time to practice that lesson’s skills. You can download the Mastercam Home Learning Edition (HLE) so that you can practice your new Mastercam skills within Mastercam. Although you do not need this guide to complete the course, it will help you orient yourself in the course and give you a reference you can keep.

Plan of studyThe plan of study for all Mastercam University online courses, shown below, is designed to prepare students for programming jobs in manufacturing and engineering, and to pro-vide students with documents that certify their training.


Design Module

Mastercam University online courses consist of modules and lessons. A module represents a major subject area, such as advanced 3D design or 4th axis rotary machining. A module contains several lessons. Each lesson teaches specific Mastercam and CAD/CAM techniques and concepts, and usually produces a part.

Each course module and lesson builds upon concepts covered in the material that precedes it. For example, the curriculum introduces the Work Coordinate System (WCS) in the Design Module. Then in the later Toolpath Modules, the curriculum applies the WCS to another feature on the part. The Mastercam University curriculum uses introduction, application, and then practice to teach advanced concepts throughout all courses. For this reason, it is critical that you complete all lessons and example parts in order.

Recommended course prerequisites We strongly recommend that you master the following concepts and skills prior to starting the Mastercam Mill Design and Toolpaths course. You should understand and be able to use the following:

Basics of Engineering Design

■ Basic Design Principles

■ Design - Specifications and Stages

■ Management and Concurrent Engineering

■ Print Reading

Mathematics

■ Fractions

■ Decimals

■ Geometry

■ Cartesian Coordinates and Planes


Design Module

■ Order of Operations

■ Triangles and Trigonometry

Conversions, Measurements, and Tools

■ Measurement Units – US Customary

■ Measurement Units – Metric

■ Fractional Machinist Scale

■ Millimeter Machinist Scale

■ Dial Caliper – Customary Units

■ Calibration and Application Examples

■ Reading the Micrometer

■ Conversions (Metric and Customary Units)

Introduction to Machining

■ Introduction to Machining – What is machining?

■ Mechanical Removal Techniques – Drilling and Milling

■ Mechanical Removal Techniques – Reaming, Tapping, and CAD/CAM Terminology

■ Introduction to Milling Machines and Movement

■ Machining Process Video Montage


Design Module

Simple Metallurgy

■ Structures of Matter and Metallurgic Properties

■ Metallurgy Terminology

■ Testing and Heat Treating

■ Metallurgy Keys to Remember

Cutting Tools and Tool Holders

■ Cutting Tools and Tool Holders

Cutting Tool Geometry

■ Cutting Tool Materials

■ Cutting Tool Holders

Cutting Speeds, Feeds, and Revolutions per Minute (RPM)

■ Cutting Speeds

■ Revolutions per Minute

■ Feed Rates


Design Module

Chip formation, Load, and Material Removal Rates

■ Chip Formation, Load, and Depth of Cut

■ Chip Formation Video Sample

■ Material Removal Rate and Cutting Time

Work Holding and Setup

■ Work Holding

■ Work Setup

■ Machining Square and Parallel

■ Work Setup and Part Locating

Course descriptionThe Mill Design and Toolpaths course contains three modules:

■ 1: Design

■ 2: Toolpaths

■ 3: Applications


Design Module

Course timelineThe Mill Design and Toolpaths curriculum has been designed to be a 40-hour course. Depending on your knowledge and experience, the time required to complete each ex-ample and module can vary widely. The next graphic shows a timeline to use as a guide.

TestingThe Mill Design and Toolpaths course includes multiple choice assessments in some modules. If you achieve a score of 80% or better on all assessments, you will receive an Associate Level of Mastercam Certification. All post-test grades will display on both the Certificate of Completion and the Associate Level of Certification certificate. Assess-ment questions and Mastercam certification tests assume you have practiced, mastered, and learned to apply the concepts covered in the videos and in the related Mastercam Help topics. Answering the questions correctly will require careful thought. Note: You may not retake tests, so be sure you are prepared and have allowed sufficient time before attempting the tests.


Design Module

Mastercam University course tips and tricksBefore you start any Mastercam University course, it is a good idea to review the prerequisites and make sure you can meet them.

The first time you log onto a course, click Course Tools, Downloads, and then download the materials. The downloads include Mastercam Home Learning Edition (HLE), which you can use to create and program your practice parts in Mastercam. You should also click Resources to check for additional materials.

Start Mastercam before you start a lesson so that you can work on your practice parts while you watch the instructional video and also access Mastercam Help for additional information. The information presented in Mastercam Help is considered part of the course content.

Always download and unzip all Mastercam part and drawing files before starting a lesson.

If a Mastercam part is provided, always save it first under a different name so that you keep an unchanged copy of the part.

Click Show Navigation to display a list of the lessons in a module and keep track of where you are in the course. You can also navigate to other modules and lessons within the course through this navigation display.

Try to complete a lesson in a single session. However, if you must stop a lesson before you complete it, Mastercam University remembers where you stopped.

Plan to spend three times the approximate video time to complete the practice lesson. Use the approximate video times to estimate how long to allow for a lesson. For exam-ple, if the approximate video time is 23 minutes, you should allow 66 minutes to complete the lesson.

Use the video controls to pause, rewind, and replay the video so that you can repeat material until you are comfortable with it. The video controls display along the lower edge of the video whenever your mouse is over the video.

Always refer to Mastercam Help in Mastercam for additional detailed information about a function or parameter. The assessment questions assume that you have read the re-lated Help topics. In addition to the Mastercam Help Contents and Index tabs, use the Search tab to locate words or phrases. Enclose phrases within quotation marks. Use the plus symbol (+) to search for multiple words.

Mastercam University keeps track of modules, lessons, and tests you have completed, along with test scores.


Design Module

How to use this guideThis guide provides the following information for each module and lesson to help you prepare for a lesson, estimate the time required to complete, and assess your mastery:

■ Overview

■ Part provided, if any

■ Relevant Mastercam Help topics, if any

■ Number of pages in the lesson. Each screen of the online lesson is considered a page. The number of pages in a lesson varies.

■ Approximate time required to view the videos.

■ The goal and time requirements to produce the practice parts

■ Module or lesson objectives, and the length and location (page) of the video that applies

■ Tools and materials recommended for machining practice parts, if appropriate

Module 1: Design Geometry is fundamental to CAD/CAM, so mastering the surface and solid creation tools available is essential to becoming a CAD/CAM expert. Although many of the following examples can be created using other methods of geometry creation, typically the examples start with wireframe, and then use that geometry to calculate distances, depths, and other dimensional properties. This is good CAD practice, and it will allow you to check your work as you create it.

Number of lessons: 9 Total video time: approximately 4.5 hours Total time to complete module: approximately10 hours

Note: This module includes both pre- and post- multiple choice tests. If you achieve a score of 80% or better on all post-tests, you will receive an Associate Level of Master-cam Certification. All post-test grades will display on both the Certificate of Completion and the Associate Level of Certification certificate.

Design Module

Lesson 1CAD Overview

Practice Goal

Mastercam Help Topics

Pages Video

Part

OBJECTIVES

Interface Overview: Screen areas, Loading a new Toolbar State, Dock-ing Toolbars, Open/Close Toolbars (Video 1 04:28 PG1)

Geometry Basics: Live Entities, Prompt Text Sizing, Basic Sketching, Options for Line construction, Polar coordinate input, Right-Click/Fit, Horizontal/Vertical Square to the axis, Forced horizontal/vertical, Un-zoom by .8 (Video 2 6:48 PG 3)

Finding Zero: F9, Axis Gnomon colors, Scale reference, Isometric View, Axis Marker (F9), Line Thickness, Intro to Mastercam Help, Hot Key lists, FastPoint mode coordinate input, AutoCursor Power Keys, AutoCursor Endpoint, Midpoint and Intersection Icons (Video 3 07:28 PG 5 )

Delete Geometry: Undelete, Undo, File New, Wireframe menu pull downs, Circle Center Point Creation, Radius & Diameter (R/D) Input, Lock Field, Lock AutoCursor snap mode (Video 4 05:15 PG 7)

Geometry Attributes: Color, Line Style, Line Width, MRU menu, Changing Attributes of existing entities, Level Manager, Create a New Level, Name a Level, End Selection Icon, End Selection Double-click (Video 5 04:41 PG 9)

X Part: Geometry from a print, Zoom/UnZoom with mouse, XY coordinate input, Polar input, Locking line fields, Xform pulldown menu, Xform Offset, Trim 1, Trim 2 (double-click), Trim 2, Divide, Saving a file (Video 6 08:29 PG 11)

Practice goalComplete part within 5 minutes

Video40 minutes

Pages12

Mastercam Help TopicsCommon Mastercam buttonsCustomizing toolbars and menusMastercam interface overviewLine ribbon bar, Button definitions Trim / Extend / Break ribbon bar,

Button definitions

Part Geo-X.MC7-X

This part is an introduction to basic Mastercam functionality. Simple geometry creation and editing expose you to many trim-ming functions as well as geome-try attributes.

Congratulations! You have finished this lesson. There will be assessment questions on this lesson at the end of the module. Be sure you have completed the practice part and read all recommended Mastercam Help topics. Think about how you might apply what you’ve learned in a real shop, and be ready to apply what you’ve learned in differ-ent situations

Design Module

Lesson 1CAD Overview

Assessment FeedbackWhat is the term that defines the Color, Line Style, Point Style, Level, Line Width, and Surface Density of an entity? • Style• Definition• Attributes• All of the above

What is the term that defines the Color, Line Style, Point Style, Level, Line Width, and Surface Density of an entity? Review video regarding: The Mastercam Overview

A locked AutoCursor override remains in effect until you perform one of the following actions.• Right- or left-click the Override button in the AutoCursor ribbon bar to release it• Press [Esc] • Open the AutoCursor Settings dialog box• All of the above

A locked AutoCursor override remains in effect until you perform one of the following actions.Review Mastercam Help regarding: Autocursor overview

When you create entities dynamically, they are drawn with a white line. This is called the phantom state. When you click the final position to create the entity, the entity becomes:• Live• Static• Solid• Finished

When you create entities dynamically, they are drawn with a white line. This is called the phantom state. When you click the final position to create the entity, the entity becomesReview videos regarding: Mastercam Overview

To move between buttons and fields in ribbon bars, you can:• Use your mouse to click buttons and place your cursor in fields• Use the [Tab] key to move between active fields• Press a hot key to activate the button or field associated with that key• All of the above

To move between buttons and fields in ribbon bars, you can:Review videos regarding: Mastercam Overview, Geometry Overview and Part 1 to learn about the Mas-tercam Interface.

Design Module

Lesson 2Power Mount

Practice Goal


Pages Video

Part

Practice goalComplete the part in 30 minutes

Video35 minutes

Pages12

Mastercam Help TopicsSketcher AutoCursor overviewGeneral Selection ribbon bar,

Button definitionsRectangular pattern dialog boxCircular pattern dialog box

PartPart1

This part demonstrates the nuts-and-bolts challenges of work-ing with arcs in a CAD system. Where arcs start and end affects geometry creation as well as trimming. The R1.0 fillets show how the system trims in an al-most quadrant-sensitive manor. Selecting what you keep is criti-cal in this area. To create the like slots, we use Solid Pattern.

OBJECTIVES

Power Mount 1: Draw the basic outer profile, Create Arcs, Tangent Arcs, Lines, Fillets, Tan-gent Line, Trim, Trim 3 (Video 1 8:02 PG 1 )

Power Mount 2: Vertical Slot, Line, Offset, Offset Contour, Arc Polar, Groups and Results, Quick Mask (Video 2 05:00 PG 3 )

Power Mount 3: Circular Slot, Polar Arcs, Offset, Offset Chain, Transform Rotate, Level Manage-ment, Name Levels, Turn off levels (Video 3 06:05 PG 5 )

Power Mount 4: Creating a basic Solid Model, Open the Solid Toolbar, Extrude, Naming the solid, Changing Attributes, Solid Shading on/off, Extrude Cuts (Video 4 06:20 PG 7 )

Power Mount 5: Solid Pattern Vertical and Cir-cular, Select Faces, Select Faces behind the Solid, Degrees or Full Circle (Video 5 04:00 PG 9 )

Power Mount 6: Change color, Match existing geometry, Adding the final features, Circular Pocket and Center Hole, Dimension-ing, Smart Dimensioning (Video 6 05:16 PG 11 )

../Video/Lesson2/Mill_Design7_Lesson2_Mount-001.mp4

Design Module

Power Mount Lesson 2


Design Module

Lesson 2Power Mount

Assessment FeedbackWhere do full circles start and end?• 12:00• 3:00• 6:00• 9:00

Where do full arcs start and end? Review videos regarding: A circle’s start and endpoint is covered in the Power Mount videos

After using the Xform function, what are the original entities called?• Result • Group• Done• None of the above

After using the Xform function, what are the original entities called? Additional Mastercam Help Topics: “Translate dialog box” and additional links on the topics page

In the Xform Rotate function, what is the zero position referenced to?• Relative to the horizontal axis• At 3:00 in the top view• Relative to horizontal in the active plane• All of the above

In the Xform Rotate function, what is the zero position referenced to? Additional Mastercam Help Topics: “Rotate dialog box” and additional links on the topics page

Select the best answer the following statement: ________to place copies around the selected center point using Solid Circular Pat-tern.• Specify the angle between each copy• Distribute the copies within a specified angle• Distribute the copies equidistantly around a full circle• All of the above

Select the best answer to place copies around the selected center point using Solid Circular Pattern:Additional Mastercam Help Topics: “Solid Pattern” and additional links on the topics page

Design Module

Lesson 3Work Coordinate System (WCS) Setups

Practice Goal


Pages Video

Part

OBJECTIVES

Set Zero Positions: Shifting zero, Using WCS, Different zero positions on the same part, Many setups on a table, Creating new cop-ies of Work Offsets, Setting Active offsets (Video 1 07:56 PG 1 )

Video27 minutes

Pages8

Practice GoalComplete the part in 10 minutes

Mastercam Help TopicsView Manager, Field DefinitionsUsing the Planes status bar menu

PartWCS-1.MCX-7

When moving the part on the machine, changing zero position on parts or features, turning the part in a vice by hand, or chang-ing the part orientation from the source file, use WCS. Changing the WCS will not provide rotary axis information for the postpro-cessor. At the CNC machine, this will rotate the part, not the fixture.

Lesson 3


Design Module

Work Coordinate System (WCS) - Setups

Assessment FeedbackIn a Top view and plane, Horizontal is parallel to which axis? : • X axis• Y axis• Z axis• All of the above

In a Top view and plane, vertical is parallel to which axis? Review videos regarding: WCS Section to learn more about planes and axes

It is a good idea to copy system views when shifting the Zero to accommodate multi-ple setups on a CNC machine. • True• False

It is a good idea to copy system views when shifting the Zero to accommodate multi-ple setups on a CNC machine.

It is always good to have clean system views for future reference.

Select the best answer for the following:• The Work Offset # in the View Manager • Assigns an offset number to the associated view.• Sets locations for the CNC Machine• Activates an Offset• None of the above

The Work Offset # in the View Manager Additional Mastercam Help Topics:View Manager (Field Definitions)

Design Module

Lesson 3Work Coordinate System (WCS) - Setups (continued)

Practice Goal


Pages Video

Part

When moving the part on the machine, changing zero position on parts or features, turning the part in a vice by hand, or chang-ing the part orientation from the source file, use WCS. Changing the WCS will not provide rotary axis information for the postpro-cessor. At the CNC machine, this will rotate the part, not the fixture.

Video27 minutes

Pages8


Mastercam Help TopicsView Manager, Field DefinitionsUsing the Planes status bar menuDynamic Gnomon

OBJECTIVES

Aligning axis and zero: Setting the axis of the part using part geometry, Define a new plane, Creating a plane, Setting a new zero position from geometry (Video 2 06:03 PG 3 )

Aligning axis and zero Part 2: Setting the axis of the part using dynamic gnomon, Align X and Y axis using the dynamic gnomon, Define a new plane, Creating a plane from geometry, Setting a new zero position from geometry (Video 3 05:40 PG 5 )

PartWCS-2.MCX-7

Lesson 3


Design Module

Work Coordinate System (WCS) - Setups (continued)

Assessment FeedbackSetting a new active WCS, Cplane, and Tplane in the View Manager tells Mastercam to: • Rotate the part with the CNC Rotary axis• Map the axis to the desired plane as if rotating a part by hand• Change the current view of the part• Set axis combinations using geometry

Setting a new active WCS, Cplane, and Tplane in the View Manager tells Mastercam to: Review videos regarding: WCS Section to learn more about planes and axis

Additional Mastercam Help Topics: “View Manager” and additional links on the topics page

Selecting an Arrowhead on the Dynamic Gnomon controls • Axis Origin• Movement along an axis• Rotate about the axis• Align the axis

Selecting an Arrowhead on the Dynamic Gnomon controls Additional Mastercam Help Topics: Dynamic Gnomon

How many selection points are along each axis of the dynamic gnomon?• 6 Selection Points• 5 Selection Points• 4 Selection Points• 3 Selection Points

How many selection points are along each axis of the dynamic gnomon?Additional Mastercam Help Topics: Dynamic Gnomon

How many selection points on an axis of the dynamic gnomon can redefine the axis vector?• 5 Selection Points• 4 Selection Points• 3 Selection Points• 2 Selection Points

Design Module

Lesson 3Work Coordinate System - Setups (continued)

Practice Goal


Pages Video

Part

OBJECTIVES

Working with 2D and 3D: Changing planes, Creating geometry in 2D mode, Setting Z depth, Creating geometry in 3D mode (Vid-eo 4 06:51 PG 7)

Video27 minutes

Pages8


Mastercam Help TopicsView Manager, Field DefinitionsUsing the Planes status bar menuDynamic Gnomon

PartWCS_3.MCX-7

The Work Coordinate System (WCS) is a way to map the se-lected view to the top view. Use WCS when turning the part in a vice by hand, or when chang-ing the part orientation from the source file. Changing the WCS will not provide rotary axis infor-mation for the postprocessor. At the CNC machine, this will rotate the part, not the fixture.

../Video/Lesson3/Mill_Design7_Lesson_WCS3-001.mp4

Lesson 3


Design Module

Work Coordinate System - Setups (continued)

Assessment FeedbackIn 2D mode, where is geometry created? • At the z position of a selected entity• By using the AutoCursor to select a position for the entity• Parallel to the current Cplane at the current system Z depth• All of the above

Which is not a typical task of the View Manager?Additional Mastercam Help Topics: “View Manager” and additional links on the topics pageReview videos regarding: WCS Section to learn more about 2D 3D geometry creation

In 3D mode, where is geometry created?• At various Z depths, unconstrained by the current system Z depth and Cplane

setting• By using AutoCursor to select a position or otherwise specify the X, Y, and Z val-

ues for the entity• By placing the first sketched point at the Z depth• At all of the geometry positions listed above

In 3D mode, where is geometry created?Additional Mastercam Help Topics: “Status bar” and additional links on the topics page “2D/3D construction modes” and additional links on the topics page

Design Module

Lesson 430-Degree Clamp

Practice Goal


Pages Video

Part

OBJECTIVES

30-Degree Clamp Part 1: Changing to a Front plane, Create a Rectangle, Create using Delta, Trim 3 Entities, Trim Divide, Trans-late (Video 1 06:31 PG1 )

30-Degree Clamp Part 2: Changing Planes, Setting Z depth, Creating a Rectangular Shape, Using Delta, Translating depth (Vid-eo 2 06:14 PG3 )

30-Degree Clamp Part 3: Setting and naming Levels, Setting a new Color, Solid Extrude, Cplane masking Chains, Naming solid features, Using Named Views (Video 3 04:16 PG 5 )

Video17 minutes

Pages6


Mastercam Help TopicsViews, planes, and coordinate

systemsQuick Dimension

Part30DEG.png

Part of mastering three-dimen-sional geometry creation is think-ing about what plane geometry exists in. Often geometry exists in more than one plane, and it is a matter of finding the depth relative to that plane.

Lesson 4

Design Module

30-Degree Clamp

Lesson 4


Design Module

30-Degree Clamp

Assessment FeedbackWhich is not a typical task of the View Manager?• Selecting which views to use for the Cplane, Tplane, or the work coordinate sys-

tem• Editing the origin of a view• Changing the Gview• All of the above

Which is not a typical task of the View Manager?

Review videos regarding: WCS Section and Part 4 to learn more about planes and axis

Additional Mastercam Help Topics: “View Manager” and additional links on the topics page

When using the Autocursor to set a Delta Position? • Hold Shift and select a point• Hold Shift and select a position• Hold Alt and select a Position• All of the above

Additional Mastercam Help Topics: “Displaying coordinate information on the screen” and additional links on the topics page

Design Module

Lesson 5Bike Caliper

Practice Goal


Pages Video

Part

Video25 minutes

Pages8


Mastercam Help TopicsCircle Center Point ribbon barExtrude (chain) tab View Manager

PartCaliper.png

This lesson will cover some basic wireframe creation and create a new plane for the cable guide..

OBJECTIVES

Bike Caliper 1: Planning the project, Circle Center Point, Arc Polar, Line Vertical, FastPoint, Line Tangent, Line Perpendicular, Xform, Offset, Fillet Blend, Trim 2, Clear Colors, Save As (Video 1 07:18 PG 1)

Bike Caliper 2: Level Management, Level Naming, Change Colors, Create geometry for new plane, Create Plane, Naming the plane, Tap hole diameter (Video 2 04:23 PG 3)

Bike Caliper 3: Changing Levels, Changing Colors Select Existing, Solid Model Creation, Boundaries for solids, Extrude / Both directions thru centerline, Chain Branch point, Line Endpoints, Solid, Endpoints, Tangent Lines, Trim Divide, Create Slot, Rectan-gle Shape / Obround, Extrude Cut Thru All (Video 3 06:36 PG 5)

Bike Caliper 4: Fillet Edges, Single, propagate along Tangencies, Warning about too many fillets and machining cost, Pretty vs. practical (Video 4 06:23 PG 7)

Lesson 5

Design Module

Bike Caliper

Lesson 5


Design Module

Bike Caliper

Assessment FeedbackDefine a Fillet.• An line tangent to two arcs• An arc tangent to two entities• An arc connected to two entities• All of the above

Define a Fillet. Covered in the Bike Caliper video.

Press F9 to:• Show coordinate axes• Show/hide the coordinate axes and system origin• Show/hide coordinate information• Show/hide zero

Press F9 to:Additional Mastercam Help Topics: Displaying coordinate information on the screen “Status bar” and additional links on the topics page

Arcs may not be created on an extended portion of the selected entity. • True• False

Press F9 to:Additional Mastercam Help Topics: Displaying coordinate information on the screen “Status bar” and additional links on the topics page

Design Module

Lesson 6Stepped Block

Practice Goal


Pages Video

Part

OBJECTIVES

Stepped Block 1: Front view Geometry of the profile, Rectangle, Offset, Trim default & Divide, Solid Extrude, Naming the solid feature, Color changes, Shading on/off (Video 1 04:37 PG1)

Stepped Block 2: Changing planes, 2D, Setting Z depth, Tapped hole sizes, Right Side Slot, Offset, Line Horizontal, Shifted/Del-ta selection, Trim Divide, Solid Extrude Cut Thru All, Offset Contour Both sides, Polar Arc, Extrude Cut Depth, Extrude cut to a point (Video 2 07:31 PG3 )

Video16 minutes

Pages4


Mastercam Help TopicsOffset dialog boxTrim/Extend/Break ribbon barColors dialog boxFastPoint mode (AutoCursor)Mastercam’s built-in calculatorOffset contour dialog box

PartBlock.png

This lesson will cover some basic wireframe for Solid modeling in different planes

Lesson 6

Design Module

Stepped Block

Lesson 6


Design Module

Stepped Block

Assessment FeedbackWhich one of the following Trim function buttons is not mutually exclusive? • Trim to point• Divide• Default • Length

Which one of the following Trim function buttons is not mutually exclusive?

Review Mastercam Help regarding: Trim / Extend / Break ribbon bar Additional Mastercam Help Topics: “Trim / Extend / Break ribbon bar” and additional links on the topics page

When extruding a solid the direction is set by• The active plane• The normal of the chained entities.• The direction of the chain• B and C

When extruding a solid the direction is set by

Review Mastercam Help regarding: Extruded solids

Design Module

Lesson 7Triple Tree

Practice Goal


Pages Video

Part

OBJECTIVES

Triple Tree 1: Changing configurations, Circle with R for radius input, Line perpendicular, Offset, Right-click Length of an entity, Math in an in input box, Fillet, Extend an entity, Join 2 entities, Trim Divide (Video 1 08:58 PG1)

Triple Tree 2: Mirror, Window selection, Trim Divide, Clear Colors, Solid Extrude, Change Colors, Offset Multiple, Create geome-try for a plane, Create a Plane, Create a cut boundary, Line forced vertical and horizontal (Video 2 07:58 PG3)

Triple Tree 3: Solid, Extrude, Cut Both directions, Mirror, Create right side boundary for cut (Video 3 04:13 PG5)

Triple Tree 4: Circles for Holes, Offset, Forced Intersection, Cut Holes, Cut Ct Bores, Level Management, Solid Shade Outlined. (Video 4 07:40 PG7)

Video29 minutes

Pages8


Mastercam Help TopicsConfiguration filesLine perpendicular ribbon barTrim / Extend / Break ribbon bar

PartFork.png

This project will create the wire-frame geometry to make a solid, and then trim the solid in a us-er-defined plane to create a triple tree.

Lesson 7

Design Module

Triple Tree

Lesson 7


Design Module

Triple Tree

Assessment FeedbackAll basic geometry can be created through the Sketcher toolbar. • True• False

All basic geometry can be created through the Sketcher toolbar.

Review Mastercam Help regarding: Sketcher

Additional Mastercam Help Topics: “Sketcher” and additional links on the topics page

When trimming a dashed entity represents what will be removed.• True• False

When trimming a solid entity between two points represents what will be created.• True• False

When trimming a solid entity between two points represents what will be created.

Additional Mastercam Help Topics: “Arc Polar ribbon bar” and additional links on the topics page

Design Module

Lesson 8Shell Connector

Practice Goal


Pages Video

Part

OBJECTIVES

Shell Connector 1: Laying out the plan, Create the Wireframe for the Dome, Circle Center, Arc Polar, Offset, Trim, Transform 3D (between planes: top – right), Level management/naming. (Video 1 06:27 PG 1 )

Shell Connector 2: Create the Wireframe for the Connector, Lines w/ Absolute endpoint, Join, Arc w/ Endpoints, New Level/Name, Open the Solid Tool bar, Solid Extrude both directions, Create Circle, Extrude the end holes, Rotate (copy) the Connector Solid, Solid Tree, Boolean Add (Video 2 07:14 PG 3)

Shell Connector 3: Level Management, Change Level, All, Lines & Arcs, Revolved Solid, Examine the 2 solids, Create a Cut boundary, Break 2 Pieces, Revolve Cut the top of the Connector (Video 3 05:49 PG 5)

Shell Connector 4: Dirty Solid, Re-chaining the base solid geometry, Regen Solid, Boolean Add, Dome & Connector, Create Cir-cles for Shaft, Extrude Shaft, Extrude cut holes into the shaft (Video 4 05:51 PG 7)

Shell Connector 5: Top Pockets, Solid, Pattern, Circular (Video 5 06:21 PG 9 )

Video32 minutes

Pages10


Mastercam Help TopicsArc Polar ribbon barTranslate 3D dialog boxExtrude (chain) tab

PartShellConn.png

This next example shows how to create a solid by rotating features and joining them with Boolean add. Circle Pattern is also used to modify geometry.

Lesson 8

Design Module

Shell Connector

Lesson 8

Design Module


Shell Connector

Assessment FeedbackPolar Arcs are calculated in a clockwise direction• True• False

Additional Mastercam Help Topics: “Arc Polar ribbon bar” and additional links on the topics page

You can create a full circle by entering 0 for the start angle and 360 for the end angle.• True• False

Design Module

Lesson 9Soccer Ball

Practice Goal


Pages Video

Part

OBJECTIVES

Soccer Ball 1: Introduction, Shapes / Polygon, Create the Pentagon, Geometry of a Hexagon, Finding the Center, Rotating a Line, Create the Hex, Polygon Expanded Dialog, Polygon Help Documentation, Rotating the Polygon, Shortcut to Angle Menu (angle of 1 line), Chain Select/End Selection (double click method), Rotate the Hexagon (Video 1 06:48 PG 1)

Soccer Ball 2: Tilting the Hexagons, Creating a plane thru a normal, Creating the Intersecting Circles, Rotating the Hexes, Blank / UnBlank, Rotating the tilted Hex around the Pentagon. (Video 2 08:12 PG 3)

Soccer Ball 3: Geometry for a tilted Plane, Creating a tilted plane, Op-tions for tilted plane (2 Lines, 3D Circle, Flat Surface Normal), Mirror about a line on the tilted plane, Blank, Rotate the Result about the origin (Video 3 04:12 PG 5)

Soccer Ball 4: Mirror the Top geometry to the Bottom, Mirror thru 2 points, Forced Intersection selection, Rotate the result for proper alignment, Delete Duplicated, Wireframe completed (Video 404:24 PG 7)

Soccer Ball 5: New Level, New Color, Introduction to surfaces, Flat boundary surface creation, Creating Black and White patches on the wireframe faces, Rotating the surfaces to complete the ball (Video 5 05:59 PG 9)

Video30 minutes

Pages10


Mastercam Help TopicsArc Polar ribbon barTranslate 3D dialog boxSelf study the Mastercam Help

system on planes and other topics in this lesson

PartSoccerball.png

In this part, geometry and planes are created from existing known geometry. When this part was initially created, only the shapes were known. The line length is the same length and sets the ball diameter.

Lesson 9


Design Module

Soccer Ball

Assessment FeedbackWhich of the following entities can be used to define a Construction plane?: • 2 lines, an arc, 2 points, a 3D spline• 2 lines, an arc with center point, a 2D spline• 2 lines, an arc, 2 points, a 3D spline• 2 lines, an arc, a flat surface, 3 points

Which of the following entities can be used to define a Construction plane?:

Review Mastercam Help regarding: Creating a new view from entities “Using the Planes Status bar menu” and additional links on the topics page.

A hidden entity will remain hidden when a file is saved and re-opened• True• False

A hidden entity will remain hidden when a file is saved and re-opened

Review Mastercam Help regarding: Blanking and hiding entities

The Dynamic Gnomon is an interactive item used in the graphics window to locate and align a set of axes• True• False

The Dynamic Gnomon is an interactive item used in the graphics window to locate and align a set of axes

Review videos regarding: The Connect Six Part to learn more about the Dynamic Gnomon

Additional Mastercam Help Topics: “Dynamic Gnomon” and additional links on the topics page


Design Module

Course Developer InformationThis guide also contains information intended to direct course content developers toward the goal of creating consistent material that adheres to the curriculum standards. It does not appear in the student version of the guide.

General course development guidelines

Before you start the video

■ Start lesson development with objectives, which must build on previously mastered skills or functions. If you are given objectives, you must develop video material that teaches to them. The objectives are listed in the online course on the page where the video appears.

■ Group objectives under a one- to three-word title that describes a common theme of the objectives. This will represent the title of the video and will appear in the online course above the objectives. The title might be a category of Mastercam functions (for example, Spline basics, or Revolved surface) or it might be a step or task in the part creation (for example, Create a blade). These titles appear online in the Navigation drop-down display.

■ Number and name the lesson. Lessons should be numbered consecutively to help the student quickly understand where they are in a module, and to provide a shorthand reference to the lesson. The name should reflect the overall output of a lesson, and will usually be a part name. The lesson names appear online in the Navigation drop-down display. The desired organization is:

Module 1 Name

Lesson 1 Name

Objective group name: objectives [video]



Etc.


Design Module

Lesson 2 Name


Etc.

■ Identify a part to be used to illustrate the lesson objectives, and either create or acquire the necessary Mastercam files, including dimensioned drawings.

Note: The part must be a “real world” part and must not be proprietary.

■ For each lesson develop two assessment questions that you will clearly teach to in the video. Consider developing the assessment questions after you define the lesson objectives but before you create the videos. This will make it easier to ensure that you teach the content and identify precisely where the content is taught.

■ Identify Mastercam Help topics that support the objectives. Be sure to use the correct topic title. The topics are listed in the online course on the page where the video ap-pears. The assessment questions can include material from the Mastercam Help topics.

Video guidelines ■ First demonstrate how the concept or function contributes to the creation of the part.

■ Next show how to use concept or function, including appropriate “why” and “tips and tricks.”

■ Then show other applications of the concept or function.

■ Introduce the practice part.

■ Try to keep the video lengths similar. Maximum length should be 5 minutes. Maximum total video length for a lesson should be 20 to 25 minutes because we advise stu-dents to expect to spend three times the video length doing the practice work.

■ Always use the name or terminology that appears in the Mastercam interface when talking about a concept or function. If you are unsure, check its usage in Mastercam Help.

■ Each video should start by displaying the Mastercam University logo (registered version).

■ Videos must fit entirely with 1024 x 768 pixels.

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