The Restorer's Recurring Problem
Anyone who restores old machinery knows the pattern: the iron is magnificent, the bearings clean up, and then one small worn part — a gear, a bushing, a lever — stops the whole project. The maker is long gone, the manuals burned in a fire fifty years ago, and the part has never appeared on any shelf since.
This is the most natural fit there is for reverse engineering. Vintage parts are almost always simple shapes in standard materials — exactly what's easy to measure and remake. The age of the machine doesn't matter; only the part in your hand does.
Vintage Parts We Reproduce
| Part | Common on | Typical material |
|---|---|---|
| Gears & change-wheels | Lathes, mills, clocks, presses | Steel, brass, cast-equivalent |
| Bushings & bearings | Tractors, engines, spindles | Bronze, brass, cast iron equiv. |
| Levers, handles, knobs | All machine tools | Steel, aluminium, brass |
| Shafts, spindles, screws | Lathes, vices, leadscrews | 4140, stainless, brass |
| Brackets & small castings | Engines, implements | Billet steel/aluminium equiv. |
Old Threads & Old Standards Are No Problem
Vintage machinery often uses threads and sizes that have since disappeared — BSW / BSF Whitworth, BA, early imperial pitches. We don't need a chart: we measure the thread directly off the part and cut a match, so a reproduced spindle or fastener still mates with the original components. The same goes for obsolete gears, where we derive module and pressure angle from the worn teeth.
Restore to Original — or Quietly Improve It
We reconstruct the part's intended dimensions, not its worn state — a gear missing teeth or a lever snapped in two is rebuilt to how it left the factory. Where the original was a known weak point, you can choose a tougher modern alloy while keeping the exact fit and appearance, so the restoration still looks right.
One part or a small set, no minimum. Send the worn original (even in pieces) or clear photos with a ruler. No drawing? Begin with no-CAD ordering or read how reverse engineering works. If the maker no longer exists, see getting a part made when the manufacturer is out of business.
Frequently Asked Questions
Yes. Age is irrelevant — the geometry is in the surviving part. We measure it, reconstruct nominal dimensions, and machine or cast a replacement. We regularly make parts for pre-war lathes, presses, tractors and engines.
That's the normal starting point. We reconstruct intended dimensions using mating parts and symmetry, not the wear. Missing teeth or a snapped lever can still be fully reproduced.
Yes. We identify BSW/BSF, BA and early imperial threads from the part and cut a match so it threads into the original components correctly.
Often we machine a solid-billet steel or aluminium equivalent that fits and functions like the casting — ideal for one-offs. For parts that must be cast, we can reproduce the geometry as a pattern.
Quote a Vintage Part
Send the worn original or photos + the machine it's from. Engineers reply within 24 hours.
No drawing needed · Files kept confidential