Formula 1 · Aerospace · Motorsport · Defence

Engineered
to Tolerance.

CAM and engineering consultancy by a
McLaren Racing and Alpine F1 programmer.
14 years at the top of the industry — now working for you.

View Services Request a Consultation
14+
Years F1 & Aerospace
5X
5-Axis Capability
F1
Active F1 Client
48h
Quote Turnaround
CAM Consultancy ·DFM Analysis ·Fixture Design ·Post Building ·5-Axis HyperMill ·Rapid Prototyping ·Batch Production ·CAM Consultancy ·DFM Analysis ·Fixture Design ·Post Building ·5-Axis HyperMill ·Rapid Prototyping ·Batch Production ·
Trusted by leaders in high-performance engineering
Alpine F1 Team
McLaren Racing
HeliMods
Aerospace & Defence
01 — CAM CONSULTANCY
Turnkey programs.
Zero surprises.

Full 5-axis CAM programming in HyperMill — from rapid prototyping through to batch production. Programs are produced to the same verified standard used in Formula 1, drawing on professional experience with VERICUT simulation gained at Alpine F1 Team. Production-ready NC code delivered to your machine, not just your inbox.

Rapid Proto · Batch · 5-Axis · HyperMill
5X

5-AXIS SIMULTANEOUS

DFM

Design for Manufacture

REPORT OUTPUTS
Wall thickness analysis
Tool access assessment
Datum strategy review
Tolerance risk map
02 — DFM CONSULTANCY
Catch problems
before they cost you.

A full written design breakdown assessing the machinability of your components before they reach the shop floor. Wall thickness, tool access, datum strategy, tolerance risk — we find the issues that cause expensive re-designs downstream.

Full Report · Tolerance Review · Risk Assessment
03 — FIXTURE DESIGN
Held precisely.
Every time.

Comprehensive fixture design for any volume — one-off components through to batch loads of 20+ parts. Every project is delivered with a full written report and production-ready 3D models, ready for manufacture or quotation.

3D Models · Full Report · Any Volume
XY
%
O0001 (AMETHYST)
G21 G17 G40 G49
T01 M06
G54 G00 X0. Y0.
S12000 M03
G43 H01 Z50.
M08
; — verified ✓
04 — POST BUILDING
Clean G-code.
Right first time.

Custom post-processor development for 3-axis CNC machines. We build, test, and validate posts that output clean, reliable G-code for your specific controller and machine configuration — so your programmers focus on programming, not firefighting.

3-Axis · Custom Controllers · Validated Output
The Alpine F1 Difference

F1-grade precision.
Applied to your project.

Amethyst currently provides CAM programming to Alpine F1 Team. The same standards, workflow, and attention to detail — available to you.

Start a Project
Who We Are

14 years at the
pinnacle of precision.

Amethyst Precision Engineering was founded by James Mannings — a CAM programmer who has spent his career at McLaren Racing and Alpine F1 Team, and as a Manufacturing Engineer at HeliMods in Australia.

The company is named after HMS Amethyst, the Royal Navy frigate on which James's grandfather served during the Korean campaign. Precision, resilience, and performing under pressure — values that run in the family.

Get in Touch
Sep 2012 — Oct 2016
FSG Tool & Die Ltd · Llantrisant
CNC Turner / Programmer · Level 3 Apprenticeship
Oct 2016 — Jan 2024
McLaren Racing · Woking
CNC Operator → Senior Aero CAM Programmer · 7.5 years
Jan 2024 — Feb 2025
HeliMods · Australia
Manufacturing / Production Engineer · Hybrid UK & QLD
Feb 2025 — Current
Alpine F1 Team
CAM Programmer — HyperMill · Mikron 500/800U · via Amethyst
HyperMill
CAM Software
VERICUT
Professional Experience
Siemens NX
CAD/CAM
The Name
Named after HMS Amethyst

Amethyst Precision Engineering takes its name from HMS Amethyst — the Royal Navy frigate made famous by the Yangtze Incident of 1949. James's grandfather, Brian Mannings M.I.S.E., served aboard her during the Korean campaign from 1949 to 1956. The name is a tribute to that service, and a reminder that precision, resilience, and performing under pressure are values that run in the family.

How It Works

From enquiry
to delivery.

STEP 01
Enquiry

Send files, drawings, or a brief. We confirm scope and issue a quote within 24–48 hours.

STEP 02
Review

DFM and machinability assessment. Issues identified before programming begins — not after.

STEP 03
Program

HyperMill CAM programming to the same verified standard used in Formula 1 production environments.

STEP 04
Deliver

Verified NC code, fixture designs, or reports delivered with complete documentation.

Get in Touch

Let's talk
about your project.

All enquiries are treated as confidential. Whether it's a single component or a complex batch project, we'd like to hear about it.

Email
james@amethystprecision.co.uk
Location
South Wales, United Kingdom
Response Time
Within 24 hours on working days