Blog
Practical guides on CNC machining, materials, tolerances and manufacturing decisions — written for design engineers and buyers sourcing custom metal and plastic parts.
Medical device component machining — biocompatible materials (316L, 17-4PH, Ti-6Al-4V, PEEK), typical tolerances, documentation requirements and RFQ structure.
Ra values for CNC machined parts explained — what standard machining delivers, what each step down the roughness scale costs, and how to specify per surface.
Titanium grades for CNC machining — Grade 2 vs Grade 5 vs Grade 23, why titanium is expensive to machine, and design rules that keep the price down.
Brass and bronze alloys for CNC machined parts — machinability, corrosion resistance, finish options and when brass beats aluminum or stainless.
Ten questions that separate reliable CNC machining suppliers from risky ones — quality systems, DFM review, inspection, finishing and communication.
Compare CNC machining and injection molding by quantity, cost structure and timeline — where the crossover sits, and how to bridge the gap without betting on one process.
A five-variable decision framework for choosing between CNC machining and 3D printing for a specific metal or engineering-plastic part, from prototype through low-volume production.
A part-level comparison of CNC turning and CNC milling — the geometry, features and quantities that point to each process, and when one part needs both.
What a ±0.05 mm tolerance actually requires from your CNC drawing — where tight bands belong, what they demand in process and inspection, and where to open up.
What to include in a CNC drawing to get an accurate quote fast — material, tolerances, surface finish, quantity and critical notes, plus a pre-send checklist.
Recommended products
Turn guidance into finished parts — explore CNC turning, milling, sheet metal fabrication and 3D printing services.
Custom surface finishing for precision CNC machined components. We support small fast-run batches, 100–400 pcs per item, dozens of part numbers per order. Available treatments: anodizing, QPQ, sandblasting, passivation and painting. One-stop CNC machining & surface treatment service.
Professional custom 3D printing service for functional prototypes and custom parts. Multiple material options, fast turnaround, support low‑volume custom manufacturing.
Custom sheet metal fabrication service for industrial metal enclosures, brackets and housings. Support prototype & low‑batch orders, laser cutting, bending and surface treatment.
