Case Study: Five Machining Operations to Zero — Outdoor ASA Mounting Components at ~60% Savings
Share
Some of the best candidates for production 3D printing aren't exotic parts — they're ordinary parts being made the expensive way out of habit. This is one of our longest-running production programs: a critical, outdoor-exposed mounting component that had always been machined in a five-operation process, now printed in ASA at roughly 60% lower cost, 1,000–2,000 units at a time.
The Situation
The customer's mounting component checked three boxes at once. It was critical — their operation genuinely depends on it being available. It was outdoor-exposed — permanent UV and weather exposure in service. And it was overbuilt — the five-step machining process that produced it delivered far more material performance than the application actually required, at a cost structure to match. (The end application is withheld at the customer's request.)
Every production run meant five sequential machining operations, with the setup time, queue time, and per-part labor that a multi-op process carries. The part worked. The way it was being made didn't — and as a bonus problem, the machined version was heavier than the application wanted.
Why ASA Was the Right Material
The load case didn't need metal — it needed a material that could survive years of sun and weather while meeting the mount's real functional requirements. That's ASA's exact design brief: engineered for outdoor use, it resists UV degradation, holds its color and mechanical properties through weather and temperature cycling, and prints reliably at production volume. It also came with a benefit machining couldn't offer: a substantially lighter part, which was a genuine advantage in this application rather than a compromise.
What Production Looks Like Now
- Five machining operations became zero. The component prints directly to final geometry with almost no manual labor — no setups, no fixturing between operations, no operation-to-operation queue time.
- Volume runs of 1,000–2,000 units print in parallel across our 85+ printer fleet in the Orlando, Florida area, with identical locked process parameters on every machine, so late-run parts match early-run parts.
- Recurring reorders go straight to production. The validated file and parameters stay on record — a reorder is a release, not a project.
The Results
| Five-Operation Machining | Printed ASA Production | |
|---|---|---|
| Cost per part | Baseline | ~60% lower |
| Manual labor | Five sequential operations | Near zero — prints directly |
| Weight | Baseline | Substantially lighter — a benefit in service |
| Outdoor durability | Adequate | ASA engineered specifically for UV/weather exposure |
| Run size | Batch-constrained by machine time | 1,000–2,000 units per run, printed in parallel |
| Reorders | Re-setup each run | Locked file + parameters, straight to fleet |
Why This Worked — Honestly
This conversion succeeded because the part's actual requirements — outdoor survival, functional strength, availability at volume — sat comfortably inside what production ASA delivers. The machining process wasn't wrong; it was answering a harder question than the application was asking. Not every machined part converts this well: components that genuinely need metal's strength, sustained heat tolerance, or machined-surface precision should stay machined, and we say so when we see it. The pattern to look for is the gap between what your current process provides and what your part actually needs — that gap is where the 60% lives.
Does Your Part Fit This Pattern?
The strongest candidates share this profile: functional (not safety-critical structural) parts in recurring volumes of hundreds to a few thousand, where the current process was chosen for convention rather than necessity — especially outdoor mounts, brackets, housings, guides, and covers. Run your own numbers with our machined-part break-even analysis, or see the full low volume production service and production capabilities sheet.
FAQ
How do I know if my machined part is over-processed for its application?
Ask what the part must actually do — loads, environment, precision — and compare that against what the process delivers. A multi-operation machined part in a moderate-load application is the classic signature. Send us the CAD and the application context and we'll give you an honest read, typically within one business day.
Can 3D printed ASA really survive permanent outdoor exposure?
Yes — that's what ASA was engineered for. It resists UV degradation and maintains color and mechanical properties outdoors where ABS, PETG, and PLA visibly degrade. This program's parts live outside full-time, run after run.
How consistent are 1,000+ unit printed runs?
Runs print in parallel across calibrated machines with identical locked parameters, and first articles are available before full-run release. Consistency across the run is a process-control outcome, not a hope.
What cost savings are typical for machining-to-printing conversions?
This program runs at approximately 60% savings; results vary with part geometry, the number of machining operations replaced, and volume. Multi-operation parts with moderate functional requirements see the largest deltas.
Chatelet Manufacturing is a US-based contract manufacturer in the Orlando, Florida area, operating 85+ FDM production printers. We produce carbon fiber nylon, glass filled nylon, ASA, polycarbonate, PETG, and TPU parts from prototype through low-volume production, with turnaround as soon as one week depending on part complexity and volume.