DX, Quoting & Inventory Guide for Machine Shops
From faster quoting and material inventory to using subsidies — practical know-how you can apply on the shop floor.
3 Tips to Halve Machining Quote Time【For Small Shops · With a Worked Example】
Quotes built from scratch every time can be automated. Systematize material/machining/setup costs, reuse repeat parts and auto-calculate weight to halve quote time, with a worked example.
How to Graduate Material Inventory from Excel【For Small Shops · With a Comparison】
Stop managing inventory by memory and paper and move to a system that prevents "out of material" at order time. A comparison with Excel, a 3-step migration, and stocktaking tips.
Using Japan's IT Subsidy for Production Software【For Small Shops · With Cautions】
Use the subsidy to cut software costs. The basic application flow, documents to prepare, key cautions and an FAQ for small shops, explained clearly.
What Is a Machining Tolerance Table【General Tolerance · Fits · IT Grades Explained】
Tolerance terms, the JIS B 0405 general tolerance table (4 grades), fits and IT grades, accuracy by machining method, and how to read drawings (±, H7). With worked examples — machining tolerances explained clearly.
Mechanical Drawing Symbols【Dimension & Geometric Tolerance Symbols Explained】
Dimension symbols φ·R·C, geometric tolerance symbols, datums, and reading the feature control frame. Mechanical drawing symbols explained with a table and diagram.
What Is Surface Roughness【Ra vs. Rz and Reading the Triangle Symbols, Explained】
Ra vs. Rz, the triangle-symbol to Ra correspondence, reading the surface texture symbol, and roughness by machining method. Surface roughness explained with diagrams.
How to Use and Read a Micrometer【0.01mm Measurement Explained with Diagrams】
Types and part names, reading 0.01mm (diagram + worked example), the ratchet procedure, zero adjustment, and the Abbe principle. The micrometer explained with diagrams.
How to Use a Bore (Cylinder) Gauge【Inside-Diameter Procedure with Diagrams】
Components, choosing rods, setting zero, rocking to read the minimum (diagram), checking roundness and taper, and common errors. The bore gauge explained with diagrams.
How to Use and Read a Vernier Caliper【0.05mm Scale Explained with Diagrams】
Part names, measuring OD/ID/depth/steps, reading the 0.05mm vernier scale (diagram + worked example), and fixing parallax and Abbe error. The vernier caliper explained with diagrams.
Common Metal Materials — Traits and Selection【SUS304 · A5052 · S45C with Density】
Compare the traits, density, machinability and uses of SUS304, A5052, S45C, SS400 and free-cutting brass. How to choose a material and machinability cautions, with a diagram.
Threads and Tapping Basics (Metric Threads & Tap Drill Chart)
Metric thread naming and pitch, a tap drill chart, through vs blind holes, tap types, and tapping tips. Thread and tapping basics explained clearly.
Heat Treatment Basics【Quenching · Tempering · Annealing · Normalizing Explained】
The difference between quenching, tempering, annealing and normalizing, HRC by steel grade, case hardening, and the effect on machining order and distortion. Heat treatment basics with diagrams.
Grinding Basics【Surface, Cylindrical and Internal Grinding, Explained】
The difference between surface/cylindrical/internal/centerless grinding, choosing a wheel, why it's accurate, and why it finishes after heat treatment. Grinding basics with a diagram.
Milling vs. Turning【Choosing the Process and Machine Types, Explained】
What rotates, what each process can do, NC lathe/MC/multitasking machine types, how to choose, and cutting-condition basics. Milling vs. turning explained with a diagram.
Surface Treatment Basics【Plating vs. Anodizing vs. Black Oxide, Explained】
The purpose and base materials of plating/anodizing/black oxide/paint, the effect of coating thickness on dimensions, and specification tips and cautions. Surface treatment explained with a diagram.
Cutting Tool Basics【End Mills · Inserts · Drills — Types and Selection Explained】
End mills (shape, flute count), lathe inserts, drills, carbide vs. HSS, coatings, and points by material. Cutting tool basics and selection explained with a diagram.
How to Read a Three-View Drawing【Third-Angle Front/Top/Side Views Explained】
Third-angle layout, line types, a step-by-step method to visualize the 3D shape, and common pitfalls. How to read a three-view drawing for beginners, with a diagram.
Measurement Error and Calibration Basics【How to Measure Accurately, Explained】
The difference between systematic and random error, error causes, calibration with gauge blocks and traceability, and tips for accuracy. Measurement error and calibration explained with a diagram.