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The drawing below shows the datum in the lower-left corner, locating the part in the first quadrant as shown in Figure: 9. Figure: 9 Note: Even though part prints do not show dimensions as negative numbers, you must input negative values when appropriate.

For example, the hole in the upper left corner in the drawing below is at the coordinate: X. The following drawing shows the same part with the datum in the upper-left corner, locating the part in the fourth quadrant. For example, it is common to place the Datum at the center of round parts as shown in Figure: Figure: 10 Since most parts get installed into an assembly, the Datum ensures that critical dimensions are held for proper fit and function.

In the example below, the critical dimensions are between hole centers in reference to the 0. Thus, the engineer selected the center of this hole as the Datum as shown in Figure: Figure: 11 Note: Attention to the datum is essential to part quality. Usually the same datum used to dimension the part is also used for machining. It extends, for all practical purposes, infinitely in all directions.

Its position and orientation never change. Within this coordinate system, any number of Planes, called Construction Planes, can be defined. A Plane can be located and oriented anywhere within the coordinate system.

Planes make drawing easier and are required to define certain 2D entities. Figure: 12 Examples in this chapter use the predefined plane, Top. Select the Top Plane by clicking on Plane on the status bar and picking Top from the list. Note: You can view the coordinate system axes by selecting F9 or File, Configuration, Screen, Display part information.

Screen Grid shows the position and orientation of the active Cplane. Wireframe geometry includes information only about the edges of a part. Wireframe models cannot be shaded. A surface can be thought of as an infinitely thin shell stretched over a wireframe. Surface geometry includes information about the faces and edges of a part.

There are many types of surfaces; each suited to model a specific type of shape. Surfaces are used to model complex, freeform organic shapes common in the automotive, aircraft, mold, and consumer goods industries.

Surface modeling is covered in the Mastercam Handbook, Volume 2. Solids contain information about the edges, faces, and interior of the part. Solids are able to model many parts, but some highly sculpted shapes, like car bodies, may still require surfaces. All Solids start with profiles of wireframe geometry. Solids are covered in Chapter 5, Solid Modeling. Entity Definition Point A point occupies a single set of coordinates in space. It has no length, depth, or width; it is infinitesimally small.

Line Arc Spline Drafting A line is an entity defined by any two points in space, called endpoints. Lines have length, but no width or depth; they are infinitely thin. An arc is an entity that is equidistant from a point in space, called a center point. Arcs are “2D” entities, meaning that they must lie on a plane. A Spline is a curve that travels, usually smoothly, through a set of points, called Control Points.

There are two types of splines; 2D and 3D. Drafting entities include notes, text, leader lines, witness lines, and hatchs. They are used to annotate a drawing. Drafting text and notes are stored as a special entity type called a font, which allows lettering to be stored in an efficient format. Wireframe geometry includes other geometry types, such as a helix, ellipse, and rectangle. However, these are modeled using one of the basic entity types described above.

For example, an ellipse is modeled using a spline, and a rectangle is modeled using four individual lines. This chapter deals with how to create basic wireframe geometry types listed in the table above.

Once you understand these, it will be easy for you to create other types. Figure: 13 shows the commands used to create wireframe geometry. The commands are arranged in groups based on entity types or specific activity.

The groups are displayed in the ribbon from basic to more complex functions. A line can start and end anywhere in the Mastercam Coordinate System as shownFigure: Full length of the line, regardless of the view.

If the line lies in the same plane that it is being viewed, the 2D and 3D lengths are the same. The angle of a line is measured from the position. Counterclockwise CCW angles are positive. Clockwise CW angles are negative. A line that splits two other lines equally. The coordinates of the either end of a line. A line along or parallel to the X-axis.

Point equidistant from the end points. A series of lines that are connected. A line offset an equal distance from another line.

A line 90 degrees to another line or arc. Sometimes referred to as a normal line. A line defined by its start point, length and angle. Lines have a direction. The Start point is the x,y,z coordinates of the first endpoint. A line that intersects an arc or spline at one point only. A line along or parallel to the Y-axis. Figure: 15 Perpendicular Perpendicular lines pierce a line or curve at a 90 degree angle all around as shown in Figure: In other words, a perpendicular line is a tangent line rotated 90 degrees.

This type of line is also called a Normal line when referring to arcs, splines, or surfaces. Mastercam can create a perpendicular line passing through some point on the curve or a point in space. Mastercam can define a parallel line given an offset distance from an existing line or a through point. Figure: 17 Bisecting Bisecting lines split the angle between two existing lines equally as shown in Figure: Mastercam shows multiple solutions and prompts you to select the one you want.

Figure: 18 Note: Mathematically, a line has length but no width; it is infinitely thin. When viewed directly along its axis, a line disappears. A line is sometimes referred to as a “straight curve”. A line is a 3D entity; it does not have to lie in a 2D construction plane to exist. Creates a line parallel to an existing line. Creates a line perpendicular to a line, arc, or spline. Creates a line representing the shortest distance between two entities.

Creates a bisecting line; a line that splits the angle between two lines equally. Value should not exceed flute length of tool, and must be appropriate for stock material.

Harder materials require smaller stepdown. Value should not exceed tool diameter, and must be appropriate for stock material. Harder materials require smaller stepover. Value should never be negative. Change value to match grain direction of stock if cutting method is One Way and stock material is non-uniform.

Select largest diameter flat endmill that can maneuver completely around input geometry while producing desired resolution. Select upcut endmill for soft, uniform materials foams , and downcut endmills for hard non-uniform materials wood, plywood, mdf.

Select largest diameter flat upcut endmill that can maneuver completely across input geometry while producing desired resolution. Select One Way if stock material is non-uniform wood, other materials with grain , or 3DCollapse if stock material is uniform foam, plastics, mdf. Select largest diameter ball endmill that can maneuver completely across input geometry while producing desired resolution. Smaller values reduce scallop height, thus increasing smoothness, while also increasing machining time.

Select largest diameter flat endmill that can maneuver completely within input geometry while producing desired resolution. Select upcut endmill for roughing and finishing if cutting soft uniform material foam. Select upcut endmill for roughing, and downcut endmill for finishing if cutting hard non-uniform materials wood, plywood, mdf.

This requires two separate Pocket operations – the first with only roughing enabled, and the second with only finishing enabled.

User may input an offset for both walls and floors. Default is 0 for both values. Value entered as either a percentage of tool diameter, or an absolute distance. Users may input plunge angle value in degrees. An increase in plunge angle corresponds with a decrease in machining time.

Value should not exceed 30 degrees, and must be appropriate for stock material. Harder materials require smaller plunge angle. Enable “Machine Passes only at Final Depth” if pocket depth relative to adjacent geometry is equal to or less than the tool flute length. Toggle between Left and Right depending on whether the tool should offset outside or inside the assigned chains. Turn off compensation if the assigned chains are intended as cut centerlines. Enable if operation is intended for roughing, disable otherwise.

Enable for small parts when vacuum hold down is used. Enable for all parts when mechanical hold down is used. User may select Automatic or Manual tab placement. Automatic works well for most situations, with minimum 4 tabs recommended. Once operations have been chosen, geometry has been assigned, and parameters have been adjusted, the next step is to generate toolpaths. Toolpaths are visualized in the modeling space as Blue and Yellow lines that are drawn across the input geometry.

Select the operation s that is are being used, then g enerate the selected operation by clicking , or regenerate all dirty operations by clicking.

Complex or corrupted geometry may cause toolpath generation to fail. In this situation, the problem geometry should be deleted from MasterCAM a prompt will warn the user that any operations that reference the problem geometry will be affected.

The geometry can then be edited or recreated in Rhino, exported as a new. Excessive toolpath generation times can sometimes be reduced by changing Visibility from Shaded to Wireframe. Trimmed surfaces with far-flung control points cause trouble when merged into MasterCAM.

Sometimes these problems can be averted by running a few Rhino commands on the problem surface s prior to merging:. Large, complex meshes and surfaces occasionally cause problems in MasterCAM as well, depending on how they were generated.

This issue is usually solved by recreating the mesh or surface in Rhino or Grasshopper. The FabLab provides a sample Grasshopper script that should produce usable geometry from the original problem geometry. Grasshopper Script for Recreating Geometry. In most cases, MasterCAM will not automatically generate the toolpath for a selected operation after its parameters and geometry have been assigned. If the operation lacks assigned geometry, or has had any changes made to the geometry assignment, parameters, or tool definitions, then the operation is considered “dirty” and the toolpath icon will instead display.

The toolpaths for a dirty operation will disappear from the modeling space until regenerated. If an attempt to verify dirty operations is made, MasterCAM will prompt the user to regenerate with a pop-up dialogue. Verification using dirty operations is inaccurate and should be avoided. Verification aka Simulation is the process of playing out the generated toolpaths in a virtual environment in order to check for errors and omissions. Successful verification accurate stock and tool definitions, no collisions found is a necessary pre-requisite to performing any real CNC machining at the GSD.

Student submitted jobs will not be approved or scheduled until successful verification is demonstrated. Select all operations that have been configured and will be used.

Operations will be verified in chronological order according to their order in the Toolpath Manager. Click verify selected operations in the Toolpath Manager to open the Mastercam Simulator window. Users can scrub backward and forward along the timeline by clicking and dragging the red slider, or incrementally by pressing B backward and S forward. Users may skip to the previous or next operation by pressing P previous and N next. Ensure that collision checking is activated before starting the simulation:.

During simulation playback, areas of the stock involved in a collision will be colored dark red. The type of collision can be identified in the Collision Report. An immediate collision upon simulating an operation Flute Length – In Progress Stock is typically the result of incorrectly defined Machining Heights within that operation. MasterCAM Simulator provides an estimate of total run time for selected operations based on specified feed rates, stepover, stepdown, etc.

This estimate is displayed in the Move List panel on the right. After playing through the simulation, check “Elapsed Time” for the time estimate. Often this estimate is too low by a factor of 2, so as a rule of thumb, double the MasterCAM Simulator time estimate when making a CNC appointment reservation. Previous page. Print length. In-House Solutions. Publication date. See all details. Next page. Tell the Publisher! I’d like to read this book on Kindle Don’t have a Kindle?

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Product Downloads. Give Mastercam a try! Click here to request a copy of Mastercam Demo/Home Learning Edition (HLE). Log in at replace.me to find the following downloads: Mastercam. Mastercam for SOLIDWORKS. Some downloads require you to link your account–please see details on replace.me Mar 24,  · Free courses for Mastercam Lathe: Mastercam Lathe: Explore interface and design, tool manager, toolpath creation, part handling and more in this new course. Mastercam Lathe: Mastercam delivers a cutting-edge suite of CAM tools to keep you at the forefront of today’s rapidly evolving manufacturing technology. For folks using the . MastercamLearning Edition. Mastercam Learning Edition is free CAD/CAM software download for demo and educational purposes. It is a trial version of Mastercam that can be used to learn at home. Whether you are an industry professional, student, or teacher, if you are looking for a way to get more familiar with CAD/CAM software, Learning Edition.

In-House Solutions Mastercam for SolidWorks Training Tutorial – Learning Labs, Inc.

Select largest diameter flat upcut endmill to remove material quickly. Harder materials require shorter tools. Special tools are available for roughing solid wood, plywood, and mdf. Input a positive offset for both Drive and Check surfaces. Default is 0. Select One Way if stock material is non-uniform wood, other materials with grain , or Zigzag if stock material is uniform foam, plastics, mdf. Value should not exceed flute length of tool, and must be appropriate for stock material.

Harder materials require smaller stepdown. Value should not exceed tool diameter, and must be appropriate for stock material. Harder materials require smaller stepover.

Value should never be negative. Change value to match grain direction of stock if cutting method is One Way and stock material is non-uniform.

Select largest diameter flat endmill that can maneuver completely around input geometry while producing desired resolution. Select upcut endmill for soft, uniform materials foams , and downcut endmills for hard non-uniform materials wood, plywood, mdf. Select largest diameter flat upcut endmill that can maneuver completely across input geometry while producing desired resolution.

Select One Way if stock material is non-uniform wood, other materials with grain , or 3DCollapse if stock material is uniform foam, plastics, mdf. Select largest diameter ball endmill that can maneuver completely across input geometry while producing desired resolution. Smaller values reduce scallop height, thus increasing smoothness, while also increasing machining time.

Select largest diameter flat endmill that can maneuver completely within input geometry while producing desired resolution. Select upcut endmill for roughing and finishing if cutting soft uniform material foam. Select upcut endmill for roughing, and downcut endmill for finishing if cutting hard non-uniform materials wood, plywood, mdf. This requires two separate Pocket operations – the first with only roughing enabled, and the second with only finishing enabled.

User may input an offset for both walls and floors. Default is 0 for both values. Value entered as either a percentage of tool diameter, or an absolute distance.

Users may input plunge angle value in degrees. An increase in plunge angle corresponds with a decrease in machining time. Value should not exceed 30 degrees, and must be appropriate for stock material. Harder materials require smaller plunge angle. Enable “Machine Passes only at Final Depth” if pocket depth relative to adjacent geometry is equal to or less than the tool flute length.

Toggle between Left and Right depending on whether the tool should offset outside or inside the assigned chains.

Turn off compensation if the assigned chains are intended as cut centerlines. Enable if operation is intended for roughing, disable otherwise. Enable for small parts when vacuum hold down is used. Enable for all parts when mechanical hold down is used. User may select Automatic or Manual tab placement. Automatic works well for most situations, with minimum 4 tabs recommended. Once operations have been chosen, geometry has been assigned, and parameters have been adjusted, the next step is to generate toolpaths.

Toolpaths are visualized in the modeling space as Blue and Yellow lines that are drawn across the input geometry. Select the operation s that is are being used, then g enerate the selected operation by clicking , or regenerate all dirty operations by clicking. Complex or corrupted geometry may cause toolpath generation to fail.

In this situation, the problem geometry should be deleted from MasterCAM a prompt will warn the user that any operations that reference the problem geometry will be affected.

The geometry can then be edited or recreated in Rhino, exported as a new. Excessive toolpath generation times can sometimes be reduced by changing Visibility from Shaded to Wireframe.

Trimmed surfaces with far-flung control points cause trouble when merged into MasterCAM. Sometimes these problems can be averted by running a few Rhino commands on the problem surface s prior to merging:.

Large, complex meshes and surfaces occasionally cause problems in MasterCAM as well, depending on how they were generated. This issue is usually solved by recreating the mesh or surface in Rhino or Grasshopper.

The FabLab provides a sample Grasshopper script that should produce usable geometry from the original problem geometry. Choose means to select a menu option or button. Dialog Box is a window that opens to allow for the input of information and the setting of defaults. Panel is a window that is locked and opens to allow for the input of information and the setting of defaults.

A Function is the same as a menu option or command. Help means the Mastercam help files loaded with your software.

Information needed to draw and machine your part is stored in a large database that Mastercam manages for you, what you see on the computer screen is a picture of that database. You work with the picture, not the lists of numbers that generate the picture. Behind the scenes, Mastercam responds to every input from you, updating the database and changing the picture to reflect every change immediately.

Since humans are visually oriented, this way of working is far more efficient than writing CNC programs by hand, since you see the results immediately. Once you are confident that the machining processes are exactly what you want, the software does the tedious work of writing the CNC program.

With Mastercam, you rarely, if ever, need to use an electronic calculator. Geometry problems are solved using Mastercam’s many geometry creations, transformation, and editing tools. Do this by drawing lines, arcs, points, and other geometric entities that precisely describe the part. These geometric entities exist in a Cartesian coordinate system.

A Cartesian coordinate system consists of two or three perpendicular number lines coordinate axis. A number line is a line divided into equal segments. The point on the line designated as zero is called the Origin. The Cartesian coordinate system allows you to define each point uniquely in a plane using a pair of numerical coordinates, which are the signed distances to the point from the origin, measured in the same unit of length. Numbers to one side of the Origin are positive, those on the other side are negative as shown in Figure: 2.

Figure: 2 Any point on the line is precisely located given its value and sign. In Figure: 2 the coordinate “3” lays three units to the right of the Origin point. The coordinate “-4” lays four units to the left of the Origin. Note: It is common practice to drop the sign for positive numbers.

However, negative numbers must include the negative sign “-“. For example, the number -3 must include the “-” sign. One line is horizontal left to right and is labeled as the X-axis. The other is vertical up and down and labeled as the Y-axis. The point where the axes cross is the Origin as shown in Figure: 3. Figure: 3 All points in this space, also called a Plane, or Construction Plane, are precisely defined given its axes label, sign, and value.

Note: Cartesian coordinates may be written in two different ways. One uses the axis label, sign and value. For example: X3 Y2. The other writes coordinates as an Ordered Pair. Numbers are written in a specific order X,Y separated by commas. For example: 3,2. Positions within the Cartesian coordinate system may be described using Absolute, Incremental, or Polar coordinates. Starting at the Origin, the following diagram shows a move to N1 and then to N2, written in absolute coordinates as shown in Figure: 4.

Figure: 4 Incremental coordinates sometimes called Delta or Rectangular coordinates are always in reference to the current position. For example, starting at the Origin, Figure: 5 shows a move to N1 and then to N2, written in incremental coordinates. Starting at the position X2, Y1 , Figure: 6 shows a move to N2, written in polar coordinates. Figure: 6 Angles are measured in degrees from the position as shown in Figure: 7.

CW angles are negative. For example, the angle is the same as Reference position for the polar coordinates. Angles can be expressed in degrees, minutes and seconds, which is abbreviated, DMS. It’s important to know which quadrant the part is in because the sign of the coordinates changes based on the quadrant.

As shown in Figure: 8, all points in quadrant I , have positive X and Y values. Points falling in quadrant II have negative X and positive Y values, and so on. Figure: 8 Turn to the end of this chapter and complete; l l Exercise , Cartesian Coordinate System. Exercise , Incremental Positioning. The drawing below shows the datum in the lower-left corner, locating the part in the first quadrant as shown in Figure: 9.

Figure: 9 Note: Even though part prints do not show dimensions as negative numbers, you must input negative values when appropriate. For example, the hole in the upper left corner in the drawing below is at the coordinate: X. The following drawing shows the same part with the datum in the upper-left corner, locating the part in the fourth quadrant.

For example, it is common to place the Datum at the center of round parts as shown in Figure: Figure: 10 Since most parts get installed into an assembly, the Datum ensures that critical dimensions are held for proper fit and function. In the example below, the critical dimensions are between hole centers in reference to the 0.

Thus, the engineer selected the center of this hole as the Datum as shown in Figure: Figure: 11 Note: Attention to the datum is essential to part quality. Usually the same datum used to dimension the part is also used for machining.

It extends, for all practical purposes, infinitely in all directions. Its position and orientation never change. Mastercam Learning Edition can be used to create geometry and then program the geometry using Mastercam toolpaths. The results can be verified visually, but they cannot be exported to control a CNC machine tool. Take advantage of innovative profile tools and processes aimed at greater efficiency and higher machining productivity.

Extend tool life with proprietary toolpath strategies that maximize material removal rate and reduce cycle times. Reduce costs and cut programming time with advanced toolpaths like Deburr and Equal Scallop.

Build your expertise using the CAM software that more schools teach—and more professionals use—than any other. See the table below for minimum and recommended system configurations for Mastercam. These recommendations are based on systems we have in use at CNC Software for testing and evaluation purposes. Our recommendation is to get as much power processor, video card, and memory for your systems as you can afford. Connection to Internet and email is recommended for installation, support, and updates.

CNC Software continues to review the operating system OS requirements for Mastercam with a goal of providing the best possible user experience for our customers. We recommend using Windows 10 version 20H2 or later or later bit Professional editions.

While Mastercam may run on other Windows editions such as Home Edition or virtual environments such as Parallels for Mac , it has not been tested on these configurations and is therefore not supported.

Mastercam was the last release to officially support Windows 7 as Microsoft ended extended support for the OS in January Mastercam will install on Windows 7 systems but will not be supported. Future versions of Mastercam will not install on Windows 7. See all details. Next page. Tell the Publisher! I’d like to read this book on Kindle Don’t have a Kindle? Customer reviews. How are ratings calculated? Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon.