Understanding CNC Routers

happens downstream of the CNC machine will … faster to 24000 rpm and work tables are more up to 5′x20 ‘. Table ….

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Understanding CNC Routers
What is a CNC Router? …4
The History of CNC …5
Definition …6
History …6
Benefits of CNC machines …10
The Appeal of CNC…11
Automation …11
Precision …12
Flexibility …12
Limitations …13
Embedded skill …14
Cut Quality …14
Frame rigidity …14
Accuracy …15
Positioning accuracy …15
Repeatability …16
Predictability …16
Maximizing Performance …17
CNC in the Media …18
Things To Consider …19
Space …20
Electrical requirements …21
Pneumatics …21
Vacuum …21
Plant layout …22
Workflow …22
Inventory …22
Tools …23
Programming …23
Computer network …23
Skills …24
Training …24
Outsourcing …24
Dust collection …24
Operator …25
Scheduling …25
Maintenance …25
The Components of a CNC Router … 26
Controller …27
Full colour display …27
Program storage …28
Hand-held programmer …28
Sealed air-conditioned cabinet …28
Three-dimensional axis compensation …29
Work Tables … 34
Flat tables … 34
T-slot tables …35
Pod and rail …35
Universal vacuum …36
Matrix tables …36
Motion …37
The Cartesian coordinate system …37
Linear and rotational motion … 38
3 & 5 axis … 38
Rapid vs. cutting motion … 38
Absolute vs. incremental motion …39
Drive System …39
Stepper motors … 40
DC servo motors …41
AC servo motor … 43
Spindles … 44
High frequency motor spindles … 44
Tool Changers … 46
Manual … 46
Multiple head … 46
Tool holders …47
Automatic tool changers …47
Tooling …50
High speed steel (HSS) …50
Solid carbide …50
Diamond tooling …51
Tool geometry …52
Tool profile …52
Chip load …53
Cutting Parameters … 54
Feed speed …55
Climb and conventional cutting …55
Rough cutting and finish cutting … 56
Ramping and offset … 56
Tab and skin … 56
Work Holding …57
Manual …57
Vacuum …58
Capacity …59
Conventional vacuum fixturing … 60
Pod and rail … 60
Combination pod/flat table … 60
High flow vacuum … 60
Roller hold-down …61
Vacuum Pumps …62
Regenerative vacuum blowers … 63
Dry running rotary vane vacuum pumps … 63
Oil recirculating rotary vane vacuum pumps … 64
Positive displacement rotary blowers … 64
Rotary claw vacuum pumps … 65
Rotary screw vacuum pumps … 65
Liquid sealed pumps … 65
Material Handling … 66
Scissor lifts … 66
Vacuum lifts …67
Automated material handling …67
Router Configurations … 68
X-Y Tables …69
Cantilevered …70
Moving Table …70
Moving Gantry …71
Pendulum …72
5-Axis …72
Industrial Robot …73
Other Categories of CNC Equipment …74
Software …75
CAD …76
CAM … 77
Parametric Design …78
Nesting Software …79
Post Processors …80
G-Code …80
Accessories … 82
Label printing … 83
Optical readers … 83
Probes … 83
Tool length sensor … 84
Laser projectors … 84
Vinyl cutter … 84
Coolant dispenser …85
Engraver …85
Rotating axis …85
Floating cutter head … 86
Plasma cutter … 86
Aggregate tools … 86
Justifying the Cost of CNC …87
Light duty … 88
Medium duty …89
Industrial strength …89
Installation and training… 90

Download Understanding CNC Routers pdf from www.solutionsforwood.ca, 116 pages, 3938.49KB.
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