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Getting Started with CNC [Pehme köide]

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  • Formaat: Paperback / softback, 166 pages, kõrgus x laius x paksus: 214x138x12 mm, kaal: 218 g
  • Ilmumisaeg: 27-Sep-2016
  • Kirjastus: O'Reilly Media
  • ISBN-10: 1457183366
  • ISBN-13: 9781457183362
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Getting Started with CNCSuurem pilt
  • Formaat: Paperback / softback, 166 pages, kõrgus x laius x paksus: 214x138x12 mm, kaal: 218 g
  • Ilmumisaeg: 27-Sep-2016
  • Kirjastus: O'Reilly Media
  • ISBN-10: 1457183366
  • ISBN-13: 9781457183362
Teised raamatud teemal:
Püsilink: https://www.kriso.ee/db/9781457183362.html
Märksõnad:

Getting Started with CNC is the definitive introduction to working with affordable desktop and benchtop CNCs, written by the creator of the popular open hardware CNC, the Shapeoko. Accessible 3D printing introduced the masses to computer-controlled additive fabrication. But the flip side of that is subtractive fabrication: instead of adding material to create a shape like a 3D printer does, a CNC starts with a solid piece of material and takes away from it. Although inexpensive 3D printers can make great things with plastic, a CNC can carve highly durable pieces out of a block of aluminum, wood, and other materials. This book covers the fundamentals of designing for--and working with--affordable ($500-$3000) CNCs.

Preface ix
1 What Is CNC? 1(22)
Digital Fabrication
2(1)
Why Computer Controlled?
2(4)
Accuracy
2(1)
Complexity
3(1)
Simulation
3(1)
Safety
4(2)
How Do Computer-Controlled Machines Work?
6(3)
Cartesian Coordinate System
6(1)
X, Y, and Z for CNC
7(2)
What Can I Make?
9(14)
Toys and Games
9(3)
Signs and Carvings
12(2)
Vehicles, Furniture, and Houses
14(2)
Molds and Casts
16(1)
Metal Creations and Inlays
17(3)
Circuit Boards
20(3)
2 Mechanical Overview 23(16)
Gantry
24(1)
Carriage
24(1)
Spindle
24(4)
Spindles Versus Routers
26(2)
Table
28(1)
Mechanisms for Securing Materials
28(8)
Step Clamps
29(2)
T-slots
31(1)
Threaded Inserts
32(1)
Screws
32(1)
Tape
33(1)
Vacuum Table
33(1)
Vises
34(1)
Routers Versus Mills
35(1)
Machine Configurations
36(3)
3 End Mills and Cutting 39(16)
End Mills
39(8)
Drill Bits Versus End Mills
40(2)
Common Tool Geometries
42(3)
Tip Shapes
45(1)
End Mill Anatomy
45(1)
End Mill Materials
46(1)
Coatings
47(1)
Cutting
47(8)
Ramping
48(1)
Climb Versus Conventional Cuts
48(1)
Speeds and Feeds
49(1)
Chipload
50(1)
Types of Tool Holding
51(4)
4 CAD: Draw or Model Something 55(12)
2D Raster Images
56(1)
2D Vector Graphics
57(3)
Vector Editing Software
58(2)
2D Drawings Versus 3D Models
60(2)
3D Models
62(1)
More Software to Try
63(4)
V-Carving Text
63(1)
Image to G-code
63(1)
Single-Line Drawing
64(1)
Halftone Images
65(2)
5 CAM: Make Toolpaths 67(14)
2D/2.5D Toolpaths
68(1)
3D Toolpaths
69(1)
2D/2.5D CAM Operations
69(2)
2D/2.5D Toolpath Parameters
71(2)
Overcuts
73(4)
Dog Bones
75(1)
T-Bones
76(1)
Minimum Feature Size
77(2)
Basic 3D CAM Operations
79(2)
Parallel Finishing
79(1)
Contour Finishing
80(1)
6 CAD/CAM Project: No Machine Necessary! 81(14)
Inkscape
81(1)
MakerCAM
81(1)
Webgcode
82(1)
CAMotics
83(1)
Wooden Racer Project
83(2)
Project Materials and Dimensions
84(1)
Step 1: Create the Digital Design
85(2)
Body
85(1)
Wheels
86(1)
Step 2: Configure MakerCAM
87(1)
Step 3: Import and Center Racer SVG File
87(1)
Step 4: Create Wheel Toolpaths
88(3)
Reduce Wheel Thickness by Half
89(1)
Screw Head Countersink
89(1)
Screw Hole
90(1)
Step 5: Create Body Toolpaths
91(1)
Body Window
91(1)
Wheel Holes
91(1)
Body Perimeter
92(1)
Step 6: Calculate Toolpaths
92(1)
Step 7: Export G-code
92(1)
Step 8: Vizualize Toolpaths
92(3)
7 Creating Motion: Electromechanical Overview 95(16)
Mechanical Motion
95(2)
Linear Motion
95(1)
Slop
96(1)
Linear Guide Types
96(1)
Power Transmission
97(3)
Lead Screws and Lead Nuts
98(1)
Belt Drives
99(1)
Rack and Pinion
99(1)
Backlash
100(1)
Motors and Electronic Components
101(1)
Stepper Motors
102(3)
Motion and Machine Control
105(6)
Mach3
106(1)
LinuxCNC
107(1)
Grbl
107(1)
Industrial Cases
108(1)
Other Choices
108(1)
Parallel Ports
109(2)
8 G-Code: Speaking CNC 111(16)
Drawing a Square: Instructions for Humans
112(1)
Square-Drawing Instructions for Machines
113(1)
G-code Square Breakdown
114(4)
Step 1: Put Pen to Paper (G20 F20 X0 Y0 Z0)
114(1)
Step 2: Move the Pen 1 Inch Toward the Top (G1 Y1)
115(1)
Step 3: Move the Pen 1 Inch Right (G1 X1)
115(1)
Step 4: Move the Pen 1 Inch Toward bottom (G1 Y0)
116(1)
Step 5: Move the Pen 1 Inch Left (G1 X0)
117(1)
Step 6: Lift the Pen 1 Inch from Paper (G1 Z1)
117(1)
G-code Rules
118(1)
Feeds, Speeds, and Tools
118(1)
Diving Further into G-Codes
119(5)
G0 (Rapid Motion)
119(1)
G1 (Controlled Motion)
120(1)
G2 (Clockwise Motion)
121(1)
G3 (Counterclockwise Motion)
122(1)
G17/G18/G19 (Working Planes)
123(1)
G20/21 (Inches or Millimeters)
123(1)
G28 and G28.1 (Referencing Home)
123(1)
G90 (Absolute Mode)
124(1)
G91 (Incremental Mode)
124(1)
M-Codes
124(3)
9 Practical Machining Tips 127(10)
CAM File Orientation Versus Actual Machine Setup
127(1)
Setting Machine Zero
128(4)
Zeroing the X- and Y-Axes
128(2)
Zeroing the Z-Axis
130(2)
Homing
132(1)
Practical Homing
132(1)
Tool Changes
133(1)
Machined Material Hold-Down Tips
134(3)
10 Conclusion 137(2)
Resources 139(4)
Index 143
Edward Ford is a Maker. He was the kid that took his parents' TV apart to see how it worked, along with the toaster, fridge, and any other thing that he could wedge a screwdriver in to. He is a staunch advocate for open hardware, open source software, and making the world a better place by empowering people to create their own high-quality products. Edward wants everyone to be their own manufacturer. In 2011 Edward designed and released Project Shapeoko, an open hardware desktop CNC machine. The project is now in its second release and has found a home in thousands of Makers' shops all across the world. Outside of work, you can find Edward spending time (aka playing!) with his two young daughters or checking items off the never ending honey-do list his wife has assigned him.