Square 1 Electronics announces its new book
by David Benson,
"Easy CNC", A Beginner's Guide to
CNC"
The complete table of contents follows:
This
book was written by David Benson (8-1/2 x 11", 200 pages, $34.95).
EASY
CNC
Table of Contents
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· INTRODUCTION For
experimenter (hobbyist) or student Overview
of topics covered in book Examples
are 3-axis but .... DIY,
retrofitted, or factory-built machines · USING A COMPUTER The
basics Copy
or cut and paste Software
use instructions Summary
· CNC CONCEPTS Toolpath
G-code
Axes,
origin, and coordinates Toolpath
vs. cutter Which
direction relative to what? Conventional
vs. climb milling Methodology
· SOFTWARE Overview
CNC
software Bit
map draw programs Vector
draw programs CAD
programs Converters
CAM
G-code
interpreters · CNC MACHINE OPERATION Generic
CNC machine and G-code interpreter On-screen
user interface Jogging
Rapid
Height Tool
library Running
G-code files E-Stop
and Limit Switches · G-CODE G-code
commands and concepts Rapid
travel at maximum feed rate = jog Current
feed rate Modal
commands Interpolation
Absolute
coordinates Driving
the tip of the tool Creating
G-code using a text editor Firing
up a G-code interpreter to execute a G-code file G-code
examples Setting
up for experiments Rapid
travel at maximum feed rate = jog Linear
interpolation Straight
Right
angle Diagonal
Circular
interpolation Circle,
larger circle in XY plane Arc
in XY plane Add
Z axis Arc
Circle
Arc
using "r" value Toolpath
Cut
and paste Programming
style Instruction
placement Comments
More
complex moves Upper/Lower
case Use
of tabs Line
numbers G-code
generated by CAM programs Complete
command set · SCANNING AN IMAGE Creating
a bit map file · CREATING DRAWINGS Basic
concepts Pencil
Sketch Draw
programs Vector
vs bit map CorelDraw
Essentials CAD
programs AutoSketch
File
formats Machining
and woodworking Art
Sign
making Printed
circuit boards · USING A BIT MAP DRAW PROGRAM CorelDRAW
Essentials Tools
Rectangle
tool Delete
- procedure Outline
tool Fill
tool Freehand
tool Shape
tool Text
tool Zoom
tool Moving
the scales - procedure Kidney
example Adots
example · USING A BIT MAP IMAGE CONVERTER PROGRAM - BIT MAP TO G-CODE Image
file to G-code for engraving Image
manipulation How
images are converted by DeskCNC Kidney
- engrave using outline image Engraving
- using DeskCNC G-code interpreter Kidney
- engrave using filled image Kidney
- contour using filled image Contouring
- using DeskCNC G-code interpreter Kidney
- pocket using filled image Pocketing
- using DeskCNC G-code interpreter Adots
examples Adots
- engrave Adots
- pocket the objects Adots
- pocket around the objects Adots
- carve · USING A CAD PROGRAM CAD
concepts AutoSketch
Getting
started with AutoSketch Drawing
size Origin
Precision
Grid
settings Toolbar
locations All-In-One
toolbar simplified Snap
modes toolbar simplified Snap
modes Draw
a straight line How
to delete an entity Edit>Undo
Line
width Zoom
tool Moving
the scales - procedure Draw
a rectangle Draw
a circle Draw
an arc Trim
options Edge
Round
(or fillet) Bevel
(or chamfer) Trimming
by defining a channel (object trim) Offset
and parallel entities Angles
- polar coordinates snap Drawing
off the grid Picking
off coordinates using the Inquire tool Explode
function DXF
file format Examples
Link
Picking
off link example coordinates Rotor
Pulley
Routing
curves Vertex
- based editing Summary
· USING A CAM PROGRAM - DXF TO G-CODE DXF
partial part drawing file to toolpaths and G-code using
DeskCNC DeskCNC
CAM features, definitions and use rules Definitions
Rules
and guidelines Direction
Effect
of direction on pocketing a single closed region Compensation
for contouring operations Conventional
vs. climb milling Tool
size and X Y step over selections for pocketing operations Pocketing
out to in vs. in to out Select>Select
Single Two
different directions - same part Combining
chunks of code - append Rules
demonstration examples Open
region such as a straight line or an arc One
closed region such as a circle Two
closed regions, one inside the other Three
closed regions inside a fourth closed region Four
closed regions - floating Three
regions "concentric" Practical
Examples Straight
line Milling
Plasma
cutting Arc
Circle
Contour
- follow line, cut outside, cut inside Pocket
Rough
only, integral number of passes Rough
plus finishing pass Square
- contour outside Single
pass Rough
plus finish pass Circle
within a square - follow the lines Circle
within a square - contour inside the circle and outside
the square Two
directions Circle
within a square - pocket between As
is Add
finishing pass to pocket operation Add
contour pass around square to remove corner
projections Drill
four holes Link
- contour Contour
Z-step roughing vs. side of end mill roughing.
Rotor
- pocket Pulley
- cutouts · APPENDIX A - DeskCNC DeskCNC
modes DeskCNC
view controls Art
mode Machine,
Edit, and DXF modes DeskCNC
- viewing DXF file information on-screen View
- show directions View
- information tags DeskCNC
Tool Library DeskCNC
make a part procedure DeskCNC
view and edit G-code · APPENDIX B - OTHER BOOKS FROM SQUARE 1
ELECTRONICS Easy
Step'n Future
CNC Books PIC?
Microcontroller Books · APPENDIX C - SOURCES Sources
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