Process Explainers
Micro Milling in Practice: Tool Diameter, ISO 21920 Callouts, and the Decision to Switch
Micro milling is CNC milling done with cutters at or below 1 mm diameter, cutting…
Bead Blasting Aluminum: How to Choose Glass Bead, Steel Shot, or Aluminum Oxide
Glass bead is the default for a cosmetic aluminum finish; aluminum oxide strips and profiles;…
CNC Machining Tolerances and Cost: What Each Precision Tier Actually Requires
A CNC tolerance’s cost is set by the process, machine, and inspection the number forces…
Sheet Metal Tolerances: Hole Spacing, Edge Distance, and Feature Design Rules
ISO 2768-1 tolerance classes, process-specific tolerance tables, hole spacing and edge distance rules, material thickness…
Sheet Metal Bend Radius and K-Factor: Charts, Formulas, and Flat Pattern Calculation
Bend radius charts by material and thickness per ASTM B209, K-factor reference tables for air…
Plastic Injection Molding Process: From Part Design to Mold Tooling to Mass Production
A five-stage guide to the plastic injection molding process covering the machine cycle, mold tooling…
Injection Molding Defects Guide: Root Causes, Severity Grading, and DFM Fixes
Ten injection molding defects classified into three severity tiers with quantified DFM corrections by material….
Surface Roughness Chart for CNC Parts: Ra, Rz, and What Each Process Actually Delivers
A surface roughness chart mapping Ra, RMS, and N grades, what each CNC process reaches…
Metric Thread Chart and Tapped Hole Callouts: Sizes, Tap Drills, and Depth Rules
Metric thread callouts pull from ISO 261, ISO 262:2023, ISO 965-1:2026, and ISO 965-2:2024. This…
ISO 2768 General Tolerances: Class Tables, Title Block Wording, and the 2026 Revision
ISO 2768-1:1989 stays current in 2026 while ISO 2768-2 has been withdrawn and replaced by…
