c12.pdf

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Getting Started with Alibre CAM
Tutorial 12: Engraving on a Cylinder
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Introduction
This tutorial will illustrate engraving text on a cylinder using a 4 Axis Engraving operation.
The stepped instructions are accompanied by explanatory and introductory text. Reading this
text will help you understand the tutorial methodology and provide information about additional
options available.
Don’t forget to save your work periodically! You may want to save the file under a different
name so that the original file will be preserved.
Strategy to engrave text on a cylinder
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We will machine the ring completely using 4 axis-machining operations.
The part itself will be machined out of a cylindrical blank.
The stock will be held to the machine table using a rotary chuck.
The part will be machined using 15deg V-Bit.
Main Programming Steps
In creating programs for each setup, the following steps will be followed:
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Create the Stock geometry
Set the Machine zero point with respect to the machine coordinates.
Set the rotary axis and rotary center.
Create / Select the tool used for machining
Set the feeds and speeds
Set the clearance plane for the non-cutting transfer moves of the cutter
Select the machining operations and set the parameters
Generate the toolpath
Simulate the toolpath.
You may have to repeat either all or part of these steps for subsequent operations.
Loading the Part Model
“Part” refers to the geometry that represents the final manufactured product. Typical you would
create this in Alibre Design. Use the Alibre Design menu bar or the Standard toolbar buttons to
create, load and save part geometry.
1. Select File / Open Part, or click the Open Part icon from the Alibre Design standard
toolbar.
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Getting Started with Alibre CAM
2. From the
Open
dialog box, select the
4Axis_Engrave.AD_PRT
file from the
Tutorials
folder in the Alibre CAM installation folder. (Default location C:\Program Files\MecSoft
Corporation\Alibre CAM 2.0\Tutorials)
The loaded part appears as shown below.
Note:
You must work in shaded mode in order to be able to visualize toolpaths created in
Alibre CAM. It is suggested for best visual performance with Alibre CAM to work with only
one view port open and the view port operating in shaded mode.
Loading the Alibre CAM Browser
2. Select Alibre CAM from the menu bar and click Machining Operations Browser.
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The Alibre CAM browser (MOPs and Cutting Tools) is now loaded and is docked over the
Design Explorer. You can toggle between the MOPs browser and the Design Explorer from
the tabs at the bottom of the window. It can be hidden by un-checking Browser on the
Alibre CAM menu bar. To re-display the hidden Browser window, you can re-check
Browser
from the Alibre CAM menu entry. You can also resize it by dragging one of its sides.
Preparing the part for Machining
The Setup tab allows the user to specify Machine Setup, Select Post Processor, Stock Geometry,
Machine Coordinate System (Machine Zero) & Preferences.
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Getting Started with Alibre CAM
Setup Tab
1. Go to the Alibre CAM MOps browser and click on the Setup tab
2. Select Machine Setup from the setup tab.
3. Set the Machine type to 4 Axis and Rotary Axis to X Axis. For most controllers rotation
along X represents A axis and rotation along Y represents B axis. We will set the Rotary
Center once we determine the Machine Zero.
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