Where Formula 1 pace meets
aerospace precision.
14 years across two top F1 teams and international aerospace — now working for you.
Full 5-axis CAM programming in HyperMill — from rapid prototyping through to batch production. Programs are produced to the exacting standard demanded by Formula 1 — where a failed program means a failed race. The same rigour applied to your components, regardless of volume. Production-ready NC code delivered to your machine, not just your inbox.
5-AXIS SIMULTANEOUS
Design for Manufacture
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.
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.
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.
Formed at the intersection of Formula 1 pace and aerospace rigour — where tight deadlines and zero-defect standards are not negotiable. That dual experience is what every Amethyst client gets access to.
Start a ProjectAmethyst Precision Engineering was founded by James Mannings — a CAM programmer who has spent 14 years across two of Formula 1's top teams and as a Manufacturing Engineer in the international aerospace sector.
Formula 1 teaches you to work fast — parts are needed in hours, not days, and there is no margin for error when a race depends on it. Aerospace teaches you to be methodical — every process documented, every tolerance justified, every risk assessed. Amethyst brings both disciplines to every project.
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 TouchSend files, drawings, or a brief. We confirm scope and issue a quote within 24–48 hours.
DFM and machinability assessment. Issues identified before programming begins — not after.
HyperMill CAM programming to the standard demanded by both Formula 1 and certified aerospace manufacture.
Verified NC code, fixture designs, or reports delivered with complete documentation.
All enquiries are treated as confidential. Whether it's a single component or a complex batch project, we'd like to hear about it.