This document contains information about CNC machines, their operation, and best practices. It discusses different types of CNC machines like 3, 4, and 5 axis machines. It provides guidelines on tooling, materials, feeds and speeds for different materials. Safety procedures are outlined, including daily maintenance checks and accident prevention. Mistakes to avoid like bad tool paths or cutting are also mentioned.

2. INDEX

3. WHAT IS CNC ?

4. WHAT IS CNC ?

6. CNC WORKING OUTPUT

20. CNC WORKING OUTPUT

21. CNC WORKING OUTPUT

23. • http://www.iscriptdesign.com/#
• http://mattermachine.com/
• http://www.sketchchair.cc/
• http://flatfab.com/
• http://boxmaker.connectionlab.org/
Parametric stools
Parametric everything !
Lets make chairs !
Flat 3d models
Parametric box

41. •
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43. 3 AXIS CNC

44. GIANT 3 AXIS CNC

45. 4 AXIS CNC

46. 5 AXIS CNC

48. HANDIBOT

51. ENDMILLS

52. DRILLS ARE NOT END MILLS !!

53. WHY DO WE NEED TO KNOW THE MILL

54. WHY DO WE NEED TO KNOW THE MILL

64. KNOWING THE END MILL

68. WHY DO WE NEED TO KNOW THE MILL

69. WHY DO WE NEED TO KNOW THE MILL

70. http://www.cnccookbook.com/CCCNCMillFeedsSpeedsClimbConventional.htm

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89. WAX
-Very soft
-Melts easily while machining
-Easily breaks
MACHINABLE WAX
-Smooth surface finish
-Soft
-Expensive (relative)
-1000ml ~ 20€

92. Material 1/8" 3/16" 1/4" 5/16" 3/8" 1/2" 5/8" 3/4" 1"
Group 3mm 5mm 6mm 8mm 10mm 12mm 16 20m 25mm
Mild - 1018
(.2-.3 Carbon) .0006" .0011" .0017" .002" .0025" .0028" .0032" .0033" .0041"
Mild - 4140 .016mm .028mm .043mm .051mm .064mm .071mm .081mm .084mm .104mm
(.4-.5 Carbon)
Tool Steels
A2/D2/H13/P20 .0004" .0009" .0013" .0016" .0019" .0021" .0026" .0028" .0028"
.010mm .023mm .033mm .041mm .048mm .053mm .066mm .071mm .071mm
Soft 450
Medium 300 .0006" .0011" .0017" .002" .0025" .0028" .0032" .0033" .0041"
Hard Chilled 250 .016mm .028mm .043mm .051mm .064mm .071mm .081mm .084mm .104mm
Malleable 225
Free Machining 300 .0006" .0011" .0017" .002" .0025" .0028" .0032" .0033" .0041"
Ferritic 200 .016mm .028mm .043mm .051mm .064mm .071mm .081mm .084mm .104mm
Austenitic
304/316 .0004" .0009" .0013" .0016" .0019" .0021" .0026" .0028" .0028"
Martensitic 150 .010mm .023mm .033mm .041mm .048mm .053mm .066mm .071mm .071mm
PH
17-4 PH
Titanium .0003" .0005" .0007" .001" .0012" .0014" .0017" .0019" .0025"
6AL-V4 .008mm .013mm .018mm .025mm .030mm .036mm .043mm .048mm .063mm
Co-Based Alloys
Stellite
Ni-Based Alloys .0004" .001" .0012" .0015" .0017" .002" .0025" .003" .003"
Inconel 625/718 .010mm .025mm .030mm .038mm .043mm .051mm .064mm .076mm .076mm
Fe-Based Alloys
Incoloy 800-802
35-45Rc 200 .0004" .001" .0012" .0015" .0017" .002" .0025" .003" .003"
45-55Rc 150 .010mm .025mm .030mm .038mm .043mm .051mm .064mm .076mm .076mm
55-65Rc 50
Al/Al Alloys 500
Brass/Bronze 400 .0011" .0017" .0022" .0027" .0032" .0042" .0065" .0085" .0092"
Mg/Mg Alloys 700 .028mm .043mm .056mm .068mm .081mm .107mm .165mm .216mm .234mm
Plastics/Bakelite 800
SFM = surface feet per minute SMM = surface meters per minute
RPM = SFM X 3.82 / Tool Diameter RPM = SMM X 318.057 / Tool Diameter
Radial Depth of Cut in Percentage of Diameter 50% 30% 20% 15% 10% 5% 1%
CLF = chip load factor 1.0 1.1 1.2 1.4 1.8 2.3 5.0
IPM = inches per minute IPT = inches / tooth MMPM = mm per minute MMPT = mm / tooth
IPM = RPM X number of teeth X CLF X IPT MMPM = RPM X number of teeth X CLF X MMPT
Non-
Ferrous
N
Special
Alloys
S
175
100
100
125
Hardened
Steels
H
Always wear the appropriate personal protective equipment such as safety glasses and protective clothing when using
solid carbide cutting tools. Machines should be fully guarded. Technical data provided should be considered advisory
only as variations may be necessary depending on the particular application.
Safety Notice
Feeds and Speeds for General Purpose Uncoated Carbide Endmills
SMM = SFM X .3048 Feed Rates - IPT (inches/tooth) and MMPT (mm/tooth)
SFM
Examples
Stainless
Steels
M
180
125
Steels
P
350
250
Cast Irons
K
200
Forgings 125
Copyright (c) All Rights Reserved Property of The-Carbide-End-Mill-Store.com
Material 1/8" 3/16" 1/4" 5/16" 3/8" 1/2" 5/8" 3/4" 1"
Group 3mm 5mm 6mm 8mm 10mm 12mm 16 20m 25mm
Mild - 1018
(.2-.3 Carbon) .0006" .0011" .0017" .002" .0025" .0028" .0032" .0033" .0041"
Mild - 4140 .016mm .028mm .043mm .051mm .064mm .071mm .081mm .084mm .104mm
(.4-.5 Carbon)
Tool Steels
A2/D2/H13/P20 .0004" .0009" .0013" .0016" .0019" .0021" .0026" .0028" .0028"
.010mm .023mm .033mm .041mm .048mm .053mm .066mm .071mm .071mm
Soft 525
Medium 350 .0006" .0011" .0017" .002" .0025" .0028" .0032" .0033" .0041"
Hard Chilled 275 .016mm .028mm .043mm .051mm .064mm .071mm .081mm .084mm .104mm
Malleable 260
Free Machining 350 .0006" .0011" .0017" .002" .0025" .0028" .0032" .0033" .0041"
Ferritic 240 .016mm .028mm .043mm .051mm .064mm .071mm .081mm .084mm .104mm
Austenitic
304/316 .0004" .0009" .0013" .0016" .0019" .0021" .0026" .0028" .0028"
Martensitic 175 .010mm .023mm .033mm .041mm .048mm .053mm .066mm .071mm .071mm
PH
17-4 PH
Titanium .0003" .0005" .0007" .001" .0012" .0014" .0017" .0019" .0025"
6AL-V4 .008mm .013mm .018mm .025mm .030mm .036mm .043mm .048mm .063mm
Co-Based Alloys
Stellite
Ni-Based Alloys .0004" .001" .0012" .0015" .0017" .002" .0025" .003" .003"
Inconel 625/718 .010mm .025mm .030mm .038mm .043mm .051mm .064mm .076mm .076mm
Fe-Based Alloys
Incoloy 800-802
35-45Rc 225 .0004" .001" .0012" .0015" .0017" .002" .0025" .003" .003"
45-55Rc 175 .010mm .025mm .030mm .038mm .043mm .051mm .064mm .076mm .076mm
55-65Rc 75
Al/Al Alloys 600
Brass/Bronze 500 .0011" .0017" .0022" .0027" .0032" .0042" .0065" .0085" .0092"
Mg/Mg Alloys 850 .028mm .043mm .056mm .068mm .081mm .107mm .165mm .216mm .234mm
Plastics/Bakelite 1000
SFM = surface feet per minute SMM = surface meters per minute
RPM = SFM X 3.82 / Tool Diameter RPM = SMM X 318.057 / Tool Diameter
Radial Depth of Cut in Percentage of Diameter 50% 30% 20% 15% 10% 5% 1%
CLF = chip load factor 1.0 1.1 1.2 1.4 1.8 2.3 5.0
IPM = inches per minute IPT = inches / tooth MMPM = mm per minute MMPT = mm / tooth
IPM = RPM X number of teeth X CLF X IPT MMPM = RPM X number of teeth X CLF X MMPT
Cast Irons
K
225
Forgings
Non-
Ferrous
N
Special
Alloys
S
275
150
150
160
Feeds and Speeds for General Purpose TiN Coated Carbide Endmills
SMM = SFM X .3048 Feed Rates - IPT (inches/tooth) and MMPT (mm/tooth)
SFM
Examples
Safety Notice
Always wear the appropriate personal protective equipment such as safety glasses and protective clothing when using
solid carbide cutting tools. Machines should be fully guarded. Technical data provided should be considered advisory
only as variations may be necessary depending on the particular application.
Hardened
Steels
H
180
Stainless
Steels
M
200
160
Steels
P
425
300
Copyright (c) All Rights Reserved Property of The-Carbide-End-Mill-Store.com

96. VACUUM

97. SPOILBOARD

98. DOUBLE SIDED TAPE

99. CLAMPS

100. SCREWS

102. COMPUTER AIDED MANUFACTURING (CAM)

105. VCARVE PRO TUTORIAL

106. VCARVE PRO TUTORIAL

107. VCARVE PRO TUTORIAL

108. VCARVE PRO TUTORIAL

109. VCARVE PRO TUTORIAL

110. VCARVE PRO TUTORIAL

113. SHOPBOT CNC PROCESS TUTORIAL

114. SHOPBOT AXIS ORIENTATION

115. TOOL DATABASE INTERFACE

116. SHOPBOT CNC PROCESS TUTORIAL

120. WHAT IS STEPOVER

124. HOLDING SMALL PARTS WITHIN MATERIAL

125. HOLDING SMALL PARTS WITHIN MATERIAL

126. CREATE FILLETS

133. T-BONE OR DOG-BONE

134. TROUBLE SHOOTING

140. THREE BASIC APPROACHES

147. CNC ACCIDENT

148. SAFETY GUIDELINES

149. SAFETY REMINDERS

150. ⁄

152. DAILY CHECK ROUTINE (MAINTENANCE)

153. DAILY CHECK ROUTINE (MAINTENANCE)

154. DAILY CHECK ROUTINE (MAINTENANCE)

155. DAILY CHECK ROUTINE (MAINTENANCE)

156. MISTAKES
BAD THROUGH CUTTING

157. MISTAKES

158. MISTAKES
BAD QUALITY OF CUTTING

159. MISTAKES

160. MISTAKES

161. MISTAKES

162. WORSE CAN HAPPEN TO YOU !!!!

206. COLLET INSTALATION

207. SETTING UP THE COLLET

224. REFERENCE