You may easily identify the abbreviation KG and CM, do you know the meaning of CYL and EQUI SP on a CNC design?
In the context of CNC (Computer Numerical Control) design, the abbreviations “CYL” and “EQUI SP” typically refer to specific features or parameters. In CNC design, “CYL” usually stands for “Cylinder.” It indicates the presence or specification of a cylindrical shape or feature in the design. It could refer to a cylindrical tool or a workpiece that requires machining operations such as drilling or turning.The abbreviation “EQUI SP” is less commonly used and might have different interpretations based on the specific CNC system or software being used.
However, one possible meaning for “EQUI SP” could be “Equal Spacing.” This term suggests that the CNC design involves maintaining equal distances or intervals between certain components or features. It could apply to the placement of holes, slots, or other elements on a workpiece or a toolpath. If you have access to any accompanying documentation or guidelines related to the CNC design you’re working with, it would be helpful to consult those resources to get precise definitions for the abbreviations used.Here we collected the standard engineering drawing abbreviations and symbols to provide help for users.
Why Use Abbreviations and Symbols in Engineering Drawings
Abbreviations and symbols are used in engineering drawings for several reasons:
Clarity And Conciseness
Standardization
Space Optimization
Efficiency And Time Saving
Precision And Accuracy
Tradition And Familiarity
The use of abbreviations and symbols in engineering drawings improves communication, reduces errors, and enhances the efficiency of design and manufacturing processes.
Common Drawing Abbreviations And Symbols Of Mechanical Design And Engineering
The technical engineering drawing abbreviations we outline here are the terms used in the manufacturing(include precision cnc machining and more) and inspection of parts and assemblies. Here are some common engineering drawing abbreviations used in technical drawings:
- Dia: Diameter
- Rad: Radius
- L: Length
- W: Width
- H: Height
- D: Depth
- T: Thickness
- CB: Counterbore
- Ra: Surface finish
- CPD: Center to center distance
- CSK: Countersink
- Fillet: F
- CH: Chamfer
- Tol: Tolerance
- Sym: Symmetrical
- NW: Nominal width
- LH: Left-hand
- RH: Right-hand
- CBO: Checked by others
- EDM: Electrical discharge machining
- APPR: Approved by
- MATL: Material
- ASSY: Assembly
- DWG: Drawing
- THK: Thickness
- PCD: Pitch circle diameter
- Ang: Angle
- ID: Inner diameter
- NOM: Nominal
- FNPT: Female National Pipe Thread
- PH: Pin height
- HW: Height >workplane
- CCW: Counterclockwise
- CW: Clockwise
- CL: Centerline
- CP: Center point
- GPM: Gallons per minute
- OD: Outer diameter
- TPI: Threads per inch
- MNPT: Male National Pipe Thread
More Engineering Drawing Abbreviations Can Be Used In CNC Manufacturing
Certainly! Here are some additional engineering drawing abbreviations commonly used in CNC manufacturing:
- CNC: Computer Numerical Control
- CAD: Computer-Aided Design
- CAM: Computer-Aided Manufacturing
- RPM: Revolutions Per Minute
- IPM: Inches Per Minute
- G-code: CNC machine language
- M-code: Machine function code
- SFM: Surface Feet Per Minute
- DOC: Depth of Cut
- RDOC: Radial Depth of Cut
- ADOC: Axial Depth of Cut
- OAL: Overall Length
- LOC: Length of Cut
- OD: Outer Diameter
- ID: Inner Diameter
- IPR: Inches Per Revolution
- TPI: Threads Per Inch
- DFM: Design for Manufacturing
- BOM: Bill of Materials
- FEA: Finite Element Analysis
- FMEA: Failure Mode and Effects Analysis
- GD&T: Geometric Dimensioning and Tolerancing
- HSM: High-Speed Machining
- RPM: Rapid Prototyping Machine
- MRR: Material Removal Rate
- VMC: Vertical Machining Center
- HMC: Horizontal Machining Center
- DFM: Design for Manufacturability
- DFX: Design for Excellence (e.g., DFM, DFA, DFR)
- CAD/CAM: Integrated computer-aided design and manufacturing
These abbreviations are commonly encountered in the field of CNC manufacturing and are used to communicate specific information, processes, and techniques related to CNC machining and production.
Engineering Drawing Symbols Chart
Basic types of symbols used in engineering drawings are countersink, counterbore, spotface, depth, radius, and diameter. Here are more commonly used engineering drawing symbols and design elements as below. Here is a chart type featuring some commonly used engineering drawing symbols:
1.Geometric Symbols
- Circle: Represents a hole or drilled feature.
- Square: Indicates a machining operation or process.
- Triangle: Represents a milled surface or cut feature.
- Hexagon: Indicates a dimension or measurement.
- Concentric Circles: Represents a position or location of features.
2.Material and Surface Symbols
- Roughness Symbol: Indicates the required surface finish.
- Surface Texture Symbol: Represents the desired surface texture.
- Welding Symbol: Indicates the type of weld and welding details.
- Surface Profile Symbol: Represents the required surface profile.
- Datum Feature Symbol: Indicates a datum reference frame for measurements.
3.Electrical Symbols
- Resistor: Represents a resistor component.
- Capacitor: Represents a capacitor component.
- Inductor: Represents an inductor component.
- Transformer: Represents a transformer component.
- Ground Symbol: Indicates an electrical ground connection.
3.Mechanical Symbols
- Bolt/Nut Symbol: Represents a bolted joint or fastening.
- Gear Symbol: Indicates a gear or gear assembly.
- Spring Symbol: Represents a spring component.
- Bearing Symbol: Indicates a bearing component.
- Motor Symbol: Represents an electric motor.
5.Flowchart Symbols
- Start/End Symbol: Represents the start or end of a process.
- Decision Symbol: Indicates a decision point in a process flow.
- Process Symbol: Represents a specific process or action.
- Data Symbol: Indicates data input or output.
- Connector Symbol: Connects different parts of a flowchart.
It’s important to note that there are many more symbols used in engineering drawings, and the specific symbols used can vary depending on the industry, standards, and specific applications.
Engineering Drawing Symbols Chart
Certainly! Here is a table featuring some commonly used engineering drawing symbols:
| Symbol | Description |
|---|---|
| Ø or ⌀ | Diameter |
| R | Radius |
| L | Length |
| W | Width |
| H | Height |
| D | Depth |
| T | Thickness |
| θ or ∠ | Angle |
| CL | Centerline |
| CB | Counterbore |
| CSK | Countersink |
| F | Fillet |
| CH | Chamfer |
| Ra | Surface finish (Roughness average) |
| Tol | Tolerance |
| Sym | Symmetrical |
| CP | Center point |
| CPD | Center to center distance |
| NW | Nominal width |
| LH | Left-hand |
| RH | Right-hand |
| CBO | Checked by others |
| APPR | Approved by |
| MATL | Material |
| ASSY | Assembly |
| DWG | Drawing |
| THK | Thickness |
| PCD | Pitch circle diameter |
| EDM | Electrical discharge machining |
| TPI | Threads per inch |
| OD | Outer diameter |
| ID | Inner diameter |
| NOM | Nominal |
| PH | Pin height |
| HW | Height above workplane |
| CCW | Counterclockwise |
| CW | Clockwise |
| FNPT | Female National Pipe Thread |
| MNPT | Male National Pipe Thread |
| GPM | Gallons per minute |
| CAD | Computer-Aided Design |
| CAM | Computer-Aided Manufacturing |
| RPM | Revolutions Per Minute |
| IPM | Inches Per Minute |
| G-code | CNC machine language |
| M-code | Machine function code |
| SFM | Surface Feet Per Minute |
| DOC | Depth of Cut |
| RDOC | Radial Depth of Cut |
| ADOC | Axial Depth of Cut |
| OAL | Overall Length |
| LOC | Length of Cut |
| IPR | Inches Per Revolution |
| TPI | Threads Per Inch |
| DFM | Design for Manufacturing |
| BOM | Bill of Materials |
| FEA | Finite Element Analysis |
| FMEA | Failure Mode and Effects Analysis |
| GD&T | Geometric Dimensioning and Tolerancing |
| HSM | High-Speed Machining |
| VMC | Vertical Machining Center |
| HMC | Horizontal Machining Center |
| DFM | Design for Manufacturability |
| DFX | Design for Excellence (e.g., DFM, DFA, DFR) |
| CAD/CAM | Integrated computer-aided design and manufacturing |
Please note that this is not an exhaustive list, and the symbols used can vary depending on the industry, specific standards, and applications. It’s always important to refer to the relevant standards or guidelines specific to your field for a comprehensive list of symbols and their meanings.