Precision CNC Work: Aluminum and Plastics

High-Precision CNC Turning & Threading – Aluminum / Plastics (20–30 pcs)

I am seeking an experienced CNC lathe machinist or shop to produce tight-tolerance precision parts from aluminum (primary) and limited Delrin / ABS.

This is not hobby or prototype work. Parts must be fully interchangeable across a 20–30 piece batch per drawing.

Work Scope

Precision turning of multiple diameters

Square facing operations

Internal & external threading to drawing

Finishing suitable for anodizing / powder coating

Technical Requirements

Tolerances down to ±0.02 mm

Surface finish per drawing (Ra controlled)

PDF drawings + STEP files provided

In-process inspection using proper gauges

Deliverables

Fully compliant machined parts

Basic dimensional inspection report (PDF or spreadsheet)

Setup and final part photos

Acceptance Criteria

All dimensions within tolerance

Threads pass GO/NO-GO gauges

Specified surface finish achieved

Mandatory Proposal Details

Please include:

Lathe model

Swing capacity

Length between centres

Typical Ra finish you achieve on aluminum or steel

Experience with small batch precision work

Quality and repeatability are more important than speed.
Successful completion may lead to repeat production orders.