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Tutorial 4: Simple V-Carving
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Getting Started with Alibre CAM
Introduction
This tutorial will illustrate machining a Sign using 2-1/2 axis-engraving operations. We can
engrave the sign using 2-D Sketches. This tutorial will introduce the usage of 2-�½ axis simple V
Carving using V bit.
V carving refers to a cutting strategy employed by sign makers to create sharp corners. V
carving is performed using a tapered bit or conical tool (as shown below) usually known in the
industry as a V Bit.
The V-bit is made to rise from the cutting depth to the top of the surface at the corners in such
a way that the tapered sides of the cutter are always in contact with the corners. When the
cutter finally reaches the top surface, only the bottom tip of the tool will be in contact with the
corners, thereby creating clean and crisp cuts at the corners.
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 Machine the part
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V carving is performed using the 2 �½ axis Machining Operation.
The part itself will be machined out of a 10.75 inch x 4 inch x �½ inch poplar wood sheet
The part would be machined using a single V-Groove bit.
The wooden sheet will be held to the machine table or the spoil sheet on the table using
double-sided tape.
Main Programming Steps
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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
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 regions for containing the cutter to specific areas to cut
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.
2.
From the
Open
dialog box, select the
V-Carve1.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 imported part appears as shown below
Loading the Alibre CAM Browser
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Getting Started with Alibre CAM
1. Select Alibre CAM from the menu bar and click Machining Operations Browser.
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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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 3 axis
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