Mill level 1 - · PDF fileMill Level 1 Mill Version X² Hours: 16 hours, 4 hour classes...
Transcript of Mill level 1 - · PDF fileMill Level 1 Mill Version X² Hours: 16 hours, 4 hour classes...
Course Outline
Class One:
Basic introduction to Mastercam
Menus and toolbars
Basic design skills
Practical application
Class Two:
Transformation toolbar
Drawing Control
Practical Application
Class Three:
Toolpath operations manager
Toolpaths
Verification utilities
Practical Application
Class Four:
Additional toolpaths
Work offsets
Post processing\setup sheet
2008
Remote Machine and CNC education Patrik Warren
[MILL LEVEL 1] Beginning Mastercam training, covering basic design and toolpathing principles.
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Course Syllabus
Mill Level 1
Mill Version X²
Hours: 16 hours, 4 hour classes
Materials: Folder, course syllabus and drawings
Pre-requisites: None
Class One
Objectives:
Basic introduction to Mastercam
Menus and toolbars
Basic design skills
The basics o Terminology
Top drop-down menu Icons Hot keys
Toolbars Ribbon bar
Positioning toolbar General selection toolbar
Drawing area Operations Manager Drawing control Prompt box
This is always telling the user what it wants o Toolbars
Display name
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Positioning Docking
Reset to default Screen customize
MRU toolbar- keeps track of the last 10 commands used o On-line help
Context sensitive Stuck? Look for the ?
o Files Recently accessed Open/Save As
Types o Options- for files that are not native to Mastercam
o Graphic view (green boxes) Basic views (toolbar or right mouse click)
Top Front Right side Isometric
o Mouse functions Left button- select/deselect- Do not hold buttons down, single click
Selected geometry will be displayed in bright yellow o Pre-selection
Selection methods o Smart selection
Single Window Chain (hold shift key)
o Invert selection Right button- fly out menu Zooming
Scrolling wheel- zooms in and out o Position mouse in area to be zoomed (avoids repositioning the
screen) Rotation
Push and hold wheel Panning
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Push and hold wheel with the ALT key Arrow keys
o ALT+ arrow keys- 3d pan o Zoom
Window Target Selection Unzoom
o Delete/Undelete Delete key on keyboard or pencil icon Pencil icon with blue arrow
Undelete one entity at a time, each time it is clicked Delete duplicates- 3 pencils
o Undo/Redo Undoes entire last function Unlimited undos Different than undelete- this will bring back all deleted entities at once
o Copy/Paste Can only copy and paste geometry between files, no toolpaths
Important hot key assignments
Function Hot key
Zoom window F1
Unzoom F2
Repaint F3
Analyze F4
Fit Alt+F1
Toggle origin F9
Toggle op. Alt+O
Grid Alt+G
Copy Alt+C
Paste Alt+V
Select all Alt+A
Undo Ctrl+Z
Basic design skills o Sketcher toolbar
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Lines Geometry states
o Phantom- white o Live entity- cyan
Adjustable o Fixed- drawing color o Autocursor- right mouse-click in drawing area
Toggle options Enable power keys Cursor reflects snap point method
o Interactive ribbon bar o Hot key assignments
Horizontal o Y-Axis positioning
Vertical o X-Axis positioning
Positioning toolbar o X,Y and Z o Fastpoint method
Tangent o Must not engage an autocursed position
Entity turns white Bisect Perpendicular
o Locking value boxes Clicking icon, value box turns red Click again to unlock
Parallel Arcs
Circle center point o Dynamic o Lock value box o Modify center point
Tangent o 1 entity o Centerline o 3 entities
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Endpoints o Dynamic o Forced- input radius first
Points Rectangular shapes
Rectangle o Width and height in ribbon bar, not positioning boxes o Anchor to center toggle
Rectangular shapes o Expand arrows o Multiple anchor points o Fillet corners
Points Position Segment
o Number of points o Distance between points
Fillet- easiest way to create an arc tangent to two entities, can be lines or arcs Trim/No trim Types
o Normal o Inverse o Circle o Clearance
Chamfer 1 distance 2 distances Distance and angle Width
o Analyze Hot key- F4 Displaying entity information Changing attributes of fixed entities Accepting changes
o Trim Scissors icon
Selection methods
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o Dual- allows for one and two entity trimming without selecting
from list o 1 entity
Pick on side of entity to keep o 2 entity
Pick on side of entity to keep both entities o 3 entity
For trimming circles Circles trimmed from endpoint
Bounding entities first, then circle Pick on side of entity to keep all entities
o Divide Select on geometry to get rid of Entities must overlap Do not use as delete
o To point Used when there is no geometry to trim to
Extend- ruler icon must be pushed in to enable o Negative value will shorten entity
Close arc Join
o Coordinate systems Rectangular
X,Y and Z axes
Polar Distance
-X
+X
+Y
-Y
+Z
-Z
Rectangular origin
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Angle- defines direction
o Screen- great tool for frame of reference Alt+G Grid Size Active Visible Origin
Demo drawings o Connecting rod
Relative positioning Delta
Intro to Xform Bounding box
Lines Center point
o M_part Letting Mastercam do the math
Polar Origin
180°
90°
270°
0°/360°
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Class Two
Objectives:
Transformation toolbar
o Group/Result
o Types
Drawing control
o Attributes
Drawings
Transformation toolbar o Create a star
Create polygon Dynamic
o Adjusting parameters Multi-line Delete Divide
o Xform Translate
Delta o X, Y and/or Z o Using functions with other functions
Delta + polar Delta + mathematical functions
From/To o Snap points
Polar o Distance o Angle (direction)
Move/copy/join # of copies
o Distance between o Total distance
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Re-select geometry Flip direction
o 3-way toggle Other side Both sides Original side
Preview o Regen o Fit
Rotate Rotation origin Angle of rotation # of copies
o Angle between o Total sweep
Use new attributes o Level
Increment level per copy o Color
Rectangular array Direction 1
o Distance o Angle
Direction 2 Mirror
Horizontal o Reference point
Vertical Angular Line 2 points
Scale Scaling origin Uniform- all 3 axis same
o Factor o Percentage
XYZ- independently scale x, y and or z
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Offset Distance Click entity and side to offset
Offset contour Chain manager (explained in detail in toolpathing section) Just click contour to offset, then click green checkmark XY distance Z distance Angle (taper)
o Absolute- relative to working coordinate system o Incremental- relative to geometry position
Project- to move geometry of varying z heights all to the same z reference Construction plane (constructing z depth) Plane Surface
Translate 3d- used to move geometry between views (ex. Front to top etc…) Views
o Reference points
Drawing control o Colors
Changing attributes Select geometry to change Right click any box in the drawing control section
o Levels Level manager
Current level Naming Viewing Creating new levels
o Line styles
Drawings o Demos
20_1 Picture frame drawing area
Geneva 1 Only drawing what’s needed
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Relative positioning o Polar
Relative positioning with polar function Exercise
Putting all known information down, extrapolate from there Substitution of known information
Class Three
Objectives:
Machine and control definition
Operations manager
o Associativity
Toolpathing
o Pocket
o Contour
o Drill
Verification Utilities
o Backplot
o Verify
Drawings
Create ncCAD part drawing o Demo for class
Machine and control definition o Machine Definition
Types
Mill
o Capabilities (horizontal, vertical etc…)
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Lathe
Wire
Router
Must define a machine definition to access toolpaths
Machine definitions in Mastercam are the starting point for creating machining jobs. Before you start a machining job in your shop, typically you first decide on what machine you will run the job, and then create the job based on that machine's features and capabilities. In Mastercam, you select a machine definition before creating any toolpaths. The machine definition is a model of your machine tool's capabilities and features and acts like a template for setting up machining jobs.
Machine definitions tie together three main components:
A schematic model of your machine tool's components (such as which linear and rotary axes are present), how they are connected together, and kinematic settings such as maximum motion rates. These are set in the Machine Definition Manager.
A control definition that models your's control unit's capabilities. This provides information to the post processor such as tolerances and NC formatting information. It also reads information from the post processor, such as post text, canned text, and miscellaneous values, and feeds that information to the rest of Mastercam. Use the Control Definition Manager to define these settings.
A pointer to your post processor. This means that when you select a machine definition to begin creating toolpaths, the post processor is automatically selected.
Note: Most Mastercam users only need a basic machine definition. These let you get up and running quickly by eliminating the need for solid models and other advanced features. Users who need to support multiaxis simulation and Mastercam MultiTasking need to create more sophisticated machine definitions
o Control definition
Easier way to make modifications to the post file
The control definition has two main functions:
It provides the post processor with the information it needs to properly process the toolpath data for the selected machine definition. This lets the post create an NC file which meets the control's requirements.
It tells Mastercam about the control and the post's capabilities and requirements so that users can't select options or features that the post won't support.
Many of the settings in the control definition are defaults for, and can be overridden in, the machine group properties or toolpath parameters for specific operations.
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Mastercam uses the combination of a machine definition and a control definition to represent a machine tool. As part of a machine definition, you select a control definition and post processor. Later, when you select the machine to create a toolpath, the control and post are automatically selected at the same time.
Like the machine definition, a copy of the control definition is stored in the machine group when a machine is selected, and saved with the part.
This lets you move the part file to another Mastercam station without bringing along the machine and control definition files.
You can make job-specific edits or overrides by editing the local copy of the control definition (in your part file) separately from the master copy stored on your hard drive.
Note: A copy of the .PST file does NOT get stored in the part or machine group. The .PST file referenced by the control definition must reside on the local workstation in order to post a part.
Mastercam stores control definitions in your CNC_MACHINES folder, in files with a .CONTROL extension. Each .CONTROL file can store several control definitions, for different machine types or configured for different post processors.
Operations manager o Properties
Stock setup Shape
o Rectangle Display
o Wireframe o Solid
Size o All entities o Bounding box
Stock origin Tool settings
Feed calculation o From tool o From material o From defaults o User defined
Assign tool numbers sequentially
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Stock material o Library
Files Changing machine definition Changing control definition
o Icons Select- green checkmarks
Select all Select dirty
Regenerate- tool icons Regen all- updates toolpaths to incorporate latest changes made Regen dirty
Backplot- blue waves Verify- block Post process- G1 Toggle toolpath display Insert arrow location
Up Down After selected group Locate
Associativity Geometry based- if any changes are made to the geometry, it is marked
as dirty Parameter based- if any changes are made to the parameters, it is
marked as dirty Elements of an operation
Parameters Tool Geometry
o Geometry chaining manager Add chain Delete chain Rechain all
Status line o Dirty operation- marked with a red X o Dirty operations must be regenerated
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Toolpaths o Tool manager
Setting up tools to be used Drag and drop Filter
By tool type By size
Changing libraries o Chaining dialogue box
Methods Chain Window Single Area Partial Point Vector
Unselect Flip direction Expand options
Move start point forward/back Dynamic
o Pocket Labels
Toolpath parameters o Coolant button o Speeds and feed o Comment box
Pocketing parameters o Retract heights
Reference buttons o Feed plane o Top of stock o Depth o Depth cuts
Maximum cut depth
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Number of finish cuts Finish cut depth
o Cut direction Climb Conventional
o XY stock to leave (walls) o Z stock to leave (floor) o Types
Standard- tool stays inside selected boundaries Facing- tool is allowed outside outer boundary
Overlap Approach/exit
Remachining- toolpath only in parts roughing tool
missed Remaining stock
o From all previous operations o From previous operation o Roughing tool diameter o Clearance o Toggles
Uncheck display stock to avoid
all the display options when
generating the toolpath Roughing/finishing parameters
o Rough Cutting method Stepover
Percentage Distance
Roughing anlge Minimize tool burial Entry/helix
Ramp Helix
o Finish Number of finish cuts Spacing
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Spring passes Feed and speed control for finish pass Toggle boxes
o Contour Chaining direction
Compensation type o Computer o Control o Wear o Reverse wear o Off
Compensation direction o Right/left
Lead in/lead out Entry/exit
o Parameters Overlap
o Drill Tip compensation
Break through Tip angle
Backplot o Whatever is selected is backplotted/verified/and posted o Backplot dialogue box
VCR controls Play/ stop Speed Step back/forward Rewind/fast forward Progress bar
Icons Toolpath color Display tool Display holder Rapid moves Endpoints
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Quick verify Expand options
Cycle times Maximum depths X,Y and Z Backplot by pass Display information at specific point
Verify o Machine o Reset o Quality
Class Four
Objectives:
Toolpaths
o Transform
Work offsets
Post processing
Setup sheet
Drawings
Recreate ncCAD part o Add islands
Set construction Z depth
Toolpaths o Island depths
Island facing- islands must be drawn at depth Stock above islands
o Chamfer toolpath Width Tip offset
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o Transform toolpaths Operations manager
Selected operations will be transformed Translate
Parameters o Methods
Mirror Rotate
o Circle paths Slot mill
Slot is two parallel lines connected by two tangent arcs Entry/exit Ramp entry
Circmill Select like drill point Start and exit point are center of circle by default Circle diameter- use this option if no circle is selected to define diameter Roughing Multipasses
Thread mill Parameters
o Inside o Outside
o Contour Tabs
Full o Partial
Thickness Width Manual Automatic Cutoff options
Work offsets o For toolpaths on multiple fixtures
Planes Work offset
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o 0=G54, 1=G55 (or next available position )etc… o Edit selected operations
Edit common parameters- changing multiple instances through more than one
operation
Setup sheet o .set file
No graphical output o GUI
Graphical output
Post processing o Select files to process
NC file Ask/overwrite Edit
o Editor Send to machine
o Communications parameters Name file and location
NCI file o Posting to different machines
Notes: