Component process selection ยท Evidence screen
How should you choose a manufacturing process for a drone component?
Start with the part's named material and condition, geometry, design maturity, duty, environment, finish, inspection and accepted quantity. Use those requirements to eliminate incompatible routes before comparing user-entered quotes. There is no universal volume at which printing, machining or molding automatically becomes correct.
Sources reviewed 2026-09-11. This matrix screens supplier conversations. It does not qualify a design, process, supplier or flight part, and it does not establish current price or capacity.
| Route | Material basis | Useful first screen | Evidence to request | Source basis |
|---|---|---|---|---|
| Filament printing (FDM) | Specified thermoplastic filament, including ABS, nylon or TPU grades. | Investigate for fit trials and iterative geometry when the exact material and build orientation can be evaluated. | Material grade and conditioning, build orientation, layer-bonding evidence, support-removal plan, finish and inspection basis. | Formlabs |
| Resin printing (SLA) | A named photopolymer resin with the required post-cure condition. | Investigate when fine detail and surface presentation matter and resin aging is explicitly considered. | Exact resin, washing and post-cure state, support marks, aging and environment data, finish and inspection basis. | Formlabs |
| Powder printing (SLS) | Specified PA11 or PA12 nylon, or TPU on a compatible process. | Investigate for polymer geometry that benefits from powder support and accessible powder removal. | Powder grade, conditioning, orientation, powder-removal access, finish, dimensional and inspection evidence. | Protolabs |
| Powder printing (MJF) | Specified PA12 or another provider-confirmed nylon grade. | Investigate when a provider's available material, feature limits and finishing route fit the intended part. | Exact material, powder-removal and finishing route, small-feature limits, orientation effects and inspection basis. | Protolabs, Protolabs |
| CNC machining | Machinable polymer or metal stock with a declared grade and condition. | Investigate when stock-material identity and defined accessible features matter. | Stock grade and condition, setup and workholding plan, cutting-tool access, corner geometry, finish and critical-feature inspection. | Protolabs |
| Injection molding | A specified moldable thermoplastic or elastomer grade. | Investigate after the design is stable enough to price tooling, revisions and repeated geometry together. | Resin grade, wall and draft review, undercuts, shrink, gates, ejection, tooling revision terms and inspection basis. | Protolabs |
Use a three-pass decision
- Screen technical fit. State the exact grade, environment, loads, interfaces and acceptance evidence. Family names alone do not make printed, machined and molded materials equivalent.
- Price the same scope. Compare fixed cost plus accepted quantity times recurring unit cost. Include tooling revisions, inspection, finishing, scrap, test and any omitted step explicitly.
- Verify the supplier evidence. Confirm the intended facility, current availability, process controls, traceability and inspection basis for the actual part.
Why batch quantity is not the first answer
Quantity affects economics only after the technical and evidence scope is comparable. A lower calculated cost cannot rescue the wrong material, inaccessible geometry, unstable design or missing acceptance basis. Tooling can still be economical only when its fixed cost, recurring cost and likely revision exposure are evaluated together.
Download the process-screen JSON. Read the manufacturing process guide.
Source register
- 3D printing technologies for drone components (Formlabs)
- 3D printing materials guide (Protolabs)
- Multi Jet Fusion process and materials (Protolabs)
- CNC machining process and materials (Protolabs)
- Injection molding process, design and materials (Protolabs)