Prismatic parts
Plates, brackets, housings and fixtures where datum structure, pocket depth and hole relationships drive the route.
CNC milling details →
Custom CNC machining
Drawing-Based Custom CNC Machining for Equipment Parts
This page focuses on how the part is reviewed: geometry, datums, fits, material, quantity and inspection—not a repeated list of generic promises.
Best suited to
Parts whose function depends on relationships between features
Typical projects include brackets, housings, plates, fixtures, shafts, sleeves and replacement components used in packaging, automation and industrial equipment.
DatumsHole patternsBearing fitsFlatnessAssembly interfaces
Route by geometry
Three common machining situations
Each situation changes tooling, setup count, risk and quotation logic.
Rotational parts
Shafts, sleeves and bushings where concentricity, runout, threads and turned diameters control function.
CNC turning details →Small repeat parts
Pins, connectors and fittings where bar-fed Swiss or automatic turning can reduce setups and unit cost.
Published turning capacity →
Before quotation
Five drawing details that materially change the route
These are the items our review should resolve before price and lead time are treated as final.
Functional datums
Which surfaces or axes locate the part in the final assembly?
Critical fits
Which holes, shafts or interfaces control motion, sealing or alignment?
Material condition
Exact alloy, temper, hardness or acceptable substitute.
Quantity pattern
Prototype quantity, first batch and expected repeat volume.
Inspection evidence
Which features require records, certificates or first-article approval?
Production evidence
Machining, inspection and packing are separate proof points
A finished part photo alone does not show whether critical features were controlled or whether repeat orders can be reproduced. We therefore separate process evidence, inspection evidence and delivery requirements.
See Inspection Capability
Not sure whether the part should be machined, molded or cast?
Geometry, quantity, material, tolerance and tooling investment need to be reviewed together before selecting a manufacturing route.
Read the manufacturing process selection guide →Sourcing a small turned component?
Part complexity, slenderness, secondary features and repeat volume can change whether Swiss-type CNC turning or automatic lathe production is the better route.
Compare Swiss turning and automatic lathe production →Which dimensions actually need tight tolerances?
Fits, datums, hole positions and mounting faces should be controlled according to assembly function—not with a blanket tolerance across the drawing.
Read the CNC machining tolerance guide →
Buyer questions
Custom CNC machining FAQ
The answers below define what is needed before price, tolerance and delivery can be confirmed from a real drawing.
What files are needed for a CNC machining quotation?
Send the 2D drawing and available 3D model, together with material grade, quantity, critical tolerances, surface finish, inspection requirements and delivery destination.
Can HONMET support both prototypes and repeat production?
HONMET reviews the prototype quantity, first production batch and expected repeat demand so the machining route, inspection plan and order records fit the production stage.
How is CNC milling selected instead of CNC turning?
Milling is generally used for prismatic parts such as plates, brackets and housings. Turning is generally used for rotational parts such as shafts, sleeves and bushings. Parts with mixed features may require a combined route.
Can surface finishing and inspection be included?
Yes. Finishing and inspection can be coordinated when the drawing identifies the finish specification, protected features, critical dimensions, sampling plan and required records.
Send the actual drawing and expected quantity.
We will review the geometry, identify the likely route and list any missing information before quotation.