Engineering articles, manufacturing guides, standards, testing methods and project cases from EPOC CRAFTER.
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Materials & Properties
67 articlesAluminum & Aluminum Alloys
- Laser Cutting Aluminum: Alloys, Assist Gas, Cut Quality and TolerancesOct 16, 2026
- Aluminum for CNC Machining: How to Choose Grades, Tempers, Stock Forms, Finishes and CostSep 23, 2026
- Bead Blasting Aluminum: How to Choose Glass Bead, Steel Shot, or Aluminum OxideSep 10, 2026
- Sheet Metal Materials Guide (2026): 5052 vs 6061 Aluminum, 304 Stainless, 1018 Steel, and Galvanized SteelAug 26, 2026
- Anodizing vs. Electroless Nickel vs. E-Coat vs. Powder Coat: Choosing the Right Finish for Machined AluminumAug 12, 2026
- Aluminum Anodizing Guide: How to Choose the Right Type, Thickness, and Finish for CNC Machined PartsAug 12, 2026
- Anodizing Thickness, Color Consistency, and Corrosion Resistance: How the Three Are Connected for 6061 PartsAug 6, 2026
- Machining 6061 for Anodize: Pre-Anodize Dimensions, Surface Finish, and Masking Decisions (2026)Jul 23, 2026
- 6061-T6 vs T651 vs T6511: Which Temper to Order for Machined PartsJul 22, 2026
- 6061 vs 7075 Aluminum: Strength, Cost, and Machinability Compared (with Selection Rules)Jul 19, 2026
- 6061 Aluminum: Properties, Grades, and How to Choose the Right Variant for CNC PartsJul 16, 2026
Steel, Metals & Alloys
- What Is Stainless Steel? Grades, Properties, CNC Machining, Corrosion and FinishingOct 15, 2026
- Types of Bronze for Bushings, Gears and Wear Parts: Grades, Properties and MachiningOct 14, 2026
- Tantalum Machining: Properties, Grades, Corrosion Resistance and Manufacturing ChallengesOct 12, 2026
- Nickel and Nickel Alloys for Machining: Corrosion, Heat, Work Hardening and ToolingOct 2, 2026
- Ferrous Metals for Manufacturing: Steel, Cast Iron, Machinability and SelectionSep 29, 2026
- What Is Copper? C101 vs C110, Properties, CNC Machining and ConductivitySep 29, 2026
- Titanium for CNC Machining: Grades, Tooling, Heat, Tolerances and ApplicationsSep 24, 2026
- Bronze Metal for Machined Parts: Bearing Grades, Bushings, Wear and CNC ConsiderationsSep 24, 2026
- What Is Brass? Alloy Grades, CNC Machinability, Properties and FinishingSep 24, 2026
- 316 vs 316L Stainless Steel: What Actually Changes When You Drop the CarbonSep 16, 2026
- CNC Machining Materials: A Cost-Effective Metal Selection GuideSep 14, 2026
- Titanium vs Stainless Steel: Ti-6Al-4V vs 316L for Aerospace and Medical PartsSep 14, 2026
- Machining Cast Iron: Grades, Chip Behavior, and Casting Blank Checks for CNC BuyersSep 13, 2026
- Cast Iron vs Steel for CNC Machining: Grades, Machinability, and What Changes After CastingAug 31, 2026
- 4140 Alloy Steel vs 1018 and 1045 Carbon Steel for CNC PartsAug 30, 2026
Plastics & Polymers
- PET 3D Printer Filament: Properties, PET vs PETG, Printing and Material SelectionOct 20, 2026
- Compression Set in Elastomers: Testing, Graphs, Recovery and Seal DesignOct 19, 2026
- Polypropylene vs Nylon: UV Resistance, Weathering Tests and Grade-Level SelectionOct 18, 2026
- Best Plastics for Laser Cutting: Materials, Safety and Cut QualityOct 17, 2026
- Plastic Creep: Deformation, Testing, Curves, and Long-Term DesignOct 17, 2026
- ABS Injection Molding: Grade Selection, Temperatures, Shrinkage and Part ValidationOct 16, 2026
- PTFE Machining: Creep, Tolerances, Surface Finish, Inserts and Chemical ServiceOct 15, 2026
- Polyamide (Nylon) for Machined and Molded Parts: Moisture, Creep, Tolerances and Grade SelectionOct 13, 2026
- HDPE for Machined Parts: Material Behavior, Tolerances, Surface Finish and ApplicationsOct 12, 2026
- ABS vs PETG Filament: Strength, Heat, Warping and Part SelectionOct 11, 2026
- ABS 3D Printing Filament: Properties, Warping, Heat Resistance and Process ControlOct 10, 2026
- PLA vs PLA+: Differences, Strength, Heat Resistance, and Print SettingsOct 10, 2026
- PETG vs PLA for 3D Printing: Strength, Heat Resistance, Printability and Part SelectionOct 10, 2026
- PLA Filament for 3D Printing: Composition, Properties, Heat Resistance and UsesOct 9, 2026
- PETG Filament for 3D Printing: Properties, Temperatures, Drying and UsesOct 9, 2026
- Polypropylene (PP) for Manufacturing: Properties, Injection Molding, Machining, Living Hinges, Creep and RecyclingOct 7, 2026
- 3D Printer Filament Types: Polymer Families, Feedstock Quality, Drying, Printability and SelectionOct 6, 2026
- Shear Modulus for Polymers and 3D-Printed Parts: Formula, Torsion Testing, Dynamic G, and AnisotropyOct 6, 2026
- PEEK Machining and Molding: Grades, Properties, Annealing, Tolerances and InsertsSep 30, 2026
- Plastic Injection Molding Process: From Part Design to Mold Tooling to Mass ProductionAug 21, 2026
- Nylon Parts for Engineering Applications: Industry Use Cases, Tolerances, and Procurement ChecklistJul 15, 2026
- PA6 vs PA66 vs PA12: Nylon Grades Compared — Properties, Modifications, and When to Switch MaterialsJul 12, 2026
- Nylon (Polyamide) Properties: The Engineer’s Selection Guide for CNC Machined PartsJul 6, 2026
Composites & Ceramics
Mechanical & Thermal Properties
- Impact Strength of Plastics: Izod vs Charpy, Notch Sensitivity, Temperature and Design UseOct 19, 2026
- Heat Deflection Temperature (HDT): Tests, Factors and Design LimitsOct 18, 2026
- Elongation in Plastics and 3D-Printed Parts: Formula, Strain at Break and TestingOct 9, 2026
- Compressive Stress in Plastic Parts: Formula, Testing, Strength and Failure ModesOct 9, 2026
- Ultimate Tensile Strength (UTS): What It Measures and How to Read It on an MTROct 6, 2026
- Stress-Strain Curve for Engineers: Yield, UTS, Elongation and What the Curve Does Not Tell YouOct 2, 2026
- Yield Strength and 0.2% Proof Stress: How to Read Test Data and Material CertificatesOct 1, 2026
- Tensile Strength in Material Selection: Testing, MTR Values, and Manufacturing RelevanceSep 30, 2026
- Annealing Before and After Machining: Stress Relief, Hardness and Dimensional StabilitySep 27, 2026
- CNC Part Weight Calculator: Metal Weight Calculator and Density ChartSep 20, 2026
- Yield Strength vs Tensile Strength: How to Read Them for CNC Part SelectionSep 7, 2026
- Metal Strength Chart: Tensile, Yield, Hardness & Density for CNC MaterialsSep 3, 2026
- Aluminum Heat Sink Material Selection: 6061 vs 6063 vs 1050 Thermal Conductivity, and Why 5052 and 7075 Fall ShortAug 28, 2026
- Type II vs. Type III Anodizing (2026): Hardness, Color, and When to Specify Hard CoatAug 9, 2026
- Nylon Mechanical Properties & Machinability: Tensile Strength, HDT, Moisture Effects, and CNC ParametersJul 7, 2026
Engineering & Quality
22 articlesEngineering Standards & Tolerances
- Types of Fits in Engineering: Clearance, Transition and Interference Explained with ISO 286Sep 16, 2026
- Micro Milling in Practice: Tool Diameter, ISO 21920 Callouts, and the Decision to SwitchSep 12, 2026
- CNC Machining for EV Motor Housings and Battery Enclosures: What ISO 1101, IEC 60529, and ASTM B221 RequireSep 11, 2026
- ISO 286 Fits Explained: H7/g6, Transition, and Interference for CNC Parts (2026 Edition)Jul 31, 2026
- Metric Thread Chart and Tapped Hole Callouts: Sizes, Tap Drills, and Depth RulesJul 28, 2026
- ISO 2768 General Tolerances: Class Tables, Title Block Wording, and the 2026 RevisionJul 26, 2026
Testing, Measurement & Inspection
- History of CNC Machining: Which Changes Improved Repeatability?Oct 22, 2026
- Deep Hole Drilling RFQ Risks: Straightness, Chip Evacuation and InspectionOct 22, 2026
- Polycarbonate Injection Molding: Grades, Drying, Process and InspectionOct 19, 2026
- Garolite Machining: G10 vs FR4, CNC Tooling, Tolerances and InspectionOct 16, 2026
- Izod Impact Strength: Test Methods, Calculation, ASTM D256 vs ISO 180, and 3D PrintingOct 11, 2026
- Bevel vs Chamfer: Drawing Callouts, Machining Methods, Weld Prep and InspectionOct 8, 2026
- Bulk Modulus in Engineering Materials: Compressibility, Elastic Constants, Measurement Limits and Design UseOct 5, 2026
- Tensile Stress in 3D-Printed Parts: Formula, Stress-Strain Data, Anisotropy, Test Methods and Design LimitsOct 5, 2026
DFM & Product Design
Procurement, RFQ & Supplier Quality
Other Engineering Articles
- What Is a Heat Sink? Design, Fin Geometry, Manufacturing, and Cooling ChoicesOct 15, 2026
- Stress vs Strain for Manufacturing: How to Read Material Behavior Beyond the DefinitionsSep 28, 2026
- Shear Stress in Machined Parts: Formula, Failure Modes, Fasteners and Design ChecksSep 28, 2026
- From Prototype to Low-Volume Production: When and How to Make the SwitchJun 17, 2026
Manufacturing Processes
40 articlesCNC Machining
- Quick Turn CNC Machining: Which Parts Can Meet an Urgent Deadline?Oct 22, 2026
- CNC Router vs CNC Mill: How to Verify Precision Metal Machining CapabilityOct 22, 2026
- Machining Center Types and Mill-Turn Compared for Part GeometryOct 21, 2026
- CNC vs Manual Machining for Low Volume Parts and Secondary OperationsOct 21, 2026
- What Is an Alloy? How Composition Changes Machinability, Strength, Corrosion and CostOct 14, 2026
- What Is TIG Welding? Process, Applications, Heat Input and Finish MachiningOct 14, 2026
- Shielded Metal Arc Welding (SMAW) in Fabrication: Process, Weld Prep, Distortion and Finish MachiningOct 8, 2026
- Epoxy Resin in Manufacturing: Bonding, Tooling and MachiningOct 7, 2026
- Types of Metals for Manufacturing: Properties, Machinability, Cost and SelectionOct 6, 2026
- Tungsten Machining: W-Ni-Fe Heavy Alloy Properties, Tool Wear, Heat and Practical LimitsSep 28, 2026
- Steel for CNC Machining: Carbon, Alloy and Stainless Grades ComparedSep 26, 2026
- G-Code and M-Code for CNC Machining: Work Offsets, Tool Compensation, Post-Processors, and Program VerificationSep 22, 2026
- Sinker EDM Machining: How the Process Works, Where It Wins, and How to Spec ItSep 21, 2026
- What Is Welding and How Does It Work: Process Families, HAZ, and Post-Weld MachiningSep 21, 2026
- Step Turning on CNC Lathes How Stepped Shafts Shoulders and Bearing Seats Are MachinedSep 20, 2026
- CNC Machining Tolerances and Cost: What Each Precision Tier Actually RequiresSep 8, 2026
- Tight Tolerance Machining: Which CNC Features Need Tighter Control?Sep 1, 2026
- How to Tolerance a CNC Drawing: What to Specify, What to Leave DefaultAug 2, 2026
- Surface Roughness Chart for CNC Parts: Ra, Rz, and What Each Process Actually DeliversJul 30, 2026
- CNC Machining for Prototyping and Low-Volume Production: The Complete Engineering GuideJun 11, 2026
Injection Molding
- Injection Molding Machine Specifications: Tonnage, Shot Size & RFQ ChecklistOct 21, 2026
- Overmolding Materials: Selection, Compatibility and TestingOct 20, 2026
- Injection Molding Defects Guide: Root Causes, Severity Grading, and DFM FixesAug 20, 2026
- Injection Molding Design Guide: Wall Thickness, Draft Angles, Ribs, and DFM Rules by MaterialAug 18, 2026
- Injection Molding Materials Guide: Properties, Selection Criteria, and Processing DataAug 16, 2026
3D Printing & Additive Manufacturing
Laser Cutting & Marking
Sheet Metal Fabrication
- Sheet Metal Hem Design: Safe Edges, Cracking and Assembly FitOct 24, 2026
- Sheet Metal Dimple Forming: Flared Hole Design, Stiffness and Flush FastenersOct 24, 2026
- Sheet Metal Tolerances: Hole Spacing, Edge Distance, and Feature Design RulesAug 26, 2026
- Sheet Metal Bend Radius and K-Factor: Charts, Formulas, and Flat Pattern CalculationAug 24, 2026
- Sheet Metal Design Guidelines: DFM Rules, Tolerances, and Best PracticesAug 23, 2026
Casting & Urethane
- What Is Urethane? Types, Properties, Uses, and CastingOct 18, 2026
- What Is Zinc? Properties, Alloys, Die Casting, Galvanizing and MachiningOct 8, 2026
- What Is Die Casting? Process, Alloys, Defects, and CNC Finishing ExplainedSep 22, 2026
- What Is Metal Casting? Processes, Defects, Machining Allowance, and CNC FinishingSep 16, 2026
Surface Finishing & Heat Treatment
Cases & Industry
11 articlesManufacturing Case Studies
- Press-Fit Rivet Nut Installation in a 2 mm SPHC Sheet: How We Held Flatness ≤ 0.08 mm for a Japanese Automation BuyerSep 23, 2026
- How a 300×280×260mm 6061-T6 Aluminum CNC Machining Cavity Held 0.04mm Flatness Across Six FacesSep 17, 2026
- Cast Urethane Parts, No Steel Mold: A 250-Piece Case for an Automation ClientSep 13, 2026
- CNC Machined Aluminum Parts: 160-Piece Order from CAD to Europe in 9 DaysSep 12, 2026
- Stainless Steel CNC Machining: How We Held 0.018 mm Profile on a 316L Cantilever S-HookSep 11, 2026
- Anodized Aluminum Parts for EV Interior Trim: A 6063 Console Panel That Cleared German CMF ReviewSep 10, 2026
- Thin-Wall Aluminum Optical Base: How We Held a 45 mm Deep Bore at 0.015 mm on 3.5 mm WallsSep 9, 2026
- Aluminum FSW Cooling Cavity: Holding a 0.8 MPa Seal on 350 PartsSep 9, 2026
- The gauge passed on the machine. A day later it had movedSep 8, 2026
Manufacturing Trends
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