Knowledge base

Design for manufacturing

Walls, tolerances, file formats and the checks that save a remake.

Design for manufacturing

Surface finishes and what they add to cost

As-printed, sanded, bead blasted, dyed, vapour smoothed, painted, anodised and powder coated: what each finish does, which parts it suits, and how it is priced.

6 min read
Design for manufacturing

Minimum wall thickness by process: FDM, SLA, SLS, MJF, metal, CNC, sheet, moulding

Typical minimum walls for FDM, resin, SLS, MJF, metal printing, CNC, sheet metal and injection moulding in one table, and why height and material matter too.

6 min read
Design for manufacturing

STL vs STEP vs 3MF (and OBJ, DXF, IGES): which file to send for a quote

Which CAD file to send for a manufacturing quote: what STL, STEP, 3MF, OBJ, DXF and IGES each carry, what they lose, and which one each process needs.

6 min read
Design for manufacturing

Design for sheet metal: bend radii, reliefs, hole distances and flanges

Sheet metal design rules that stop parts cracking or distorting: bend radii, reliefs, hole-to-edge and hole-to-bend distances, flanges, and a worked flat pattern.

7 min read
Design for manufacturing

Design for CNC machining: the rules that cut cost

Internal radii, pocket depth, thin walls, holes, threads and tolerances: the CNC design rules that decide machining time, and how to apply them to a real part.

6 min read
Design for manufacturing

Design for 3D printing: walls, overhangs, holes, clearances and orientation

The design rules that decide whether a 3D printed part works and what it costs, with typical limits for FDM, SLA, SLS and MJF in one table.

6 min read

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