Which CAD file formats does INNOETCH accept for photochemical etching design reviews?

INNOETCH accepts common 2D CAD and neutral exchange formats for photochemical etching design reviews, including DXF, DWG, PDF, AI, Gerber, STEP and IGES. For photochemical etching, 2D vector data is usually the most practical starting point because etched features are produced from patterned artwork, and engineering review focuses on part outline, openings, web widths, bar widths, half-etched areas, material thickness, feature spacing and dimensional relationships. When submitting files, customers should separate design information by layer or by clear annotation where possible. Critical items to identify include full part outline, through-etched features, half-etched zones, bend or forming areas if applicable, logo or text areas, grain or surface direction requirements, and any non-symmetrical features that must be oriented in a specific direction. For precision metal mesh, filter mesh, speaker grilles, encoder discs,IC lead frames, precision shims and other thin metal components, small changes in hole size, slot width, bridge width or web distribution can affect etching feasibility, dimensional consistency and part handling, so clean, dimensioned geometry helps the engineering team review the design more efficiently. PDF files are acceptable for initial review, but vector-based PDFs are more useful than scanned or raster PDFs. AI files can be used for decorative patterns, nameplates, logos, craft ornaments and grille-style parts, but dimensions should still be clearly marked because artwork files do not always include engineering tolerances or material callouts. STEP and IGES files are useful when the part has 3D form, assembly context, forming features or depth-related features that are difficult to understand from a flat drawing alone. However, for photochemical etching, a 3D file is usually a supporting reference rather than the primary production file. The main review still requires a clear 2D representation of the etched pattern and finished flat dimensions. If a part includes formed tabs, elastic elements, stepped etch features or assembly interfaces, providing both a 2D drawing and a 3D model can reduce interpretation risk. When sending Gerber data, it is helpful to include a supporting drawing that identifies material, thickness, finished part size, critical dimensions and any acceptance requirements, because Gerber data alone may not explain functional priorities or inspection points. Before sending files, buyers and engineers should check a few practical items. First, confirm that the drawing is to scale and that dimensions are not manually overridden in a way that conflicts with the actual geometry. Third, specify whether features are through-etched or half-etched, and indicate the intended etch side if the design is not symmetric. Fourth, state the target material and thickness, because INNOETCH works with stainless steel, copper, nickel, molybdenum, aluminum and other etchable metals, and material selection influences etching behavior, feature definition and handling. Fifth, include application-related requirements such as flatness, edge quality, surface finish, cleanliness, burr sensitivity or functional fit where relevant. A complete review package typically includes the CAD or drawing file, material specification, thickness, quantity estimate, application notes, tolerance expectations, surface or post-processing requirements, and any sample or reference information if available. If a physical sample exists, it can be used as a reference for edge condition, surface appearance or assembly fit, but a measurable drawing is still needed for production control. INNOETCH supports prototype development, engineering design optimization, precision manufacturing, process control and quality management from sample projects to stable mass production. During design review, the engineering team may identify areas where feature proportions, opening density, half-etch depth, web strength or material choice should be adjusted for better etching consistency. This review is intended to help customers move from concept to producible etched parts, especially for applications in electronics, semiconductors, optical communication, medical devices, automotive electronics, new energy, precision machinery, acoustic components, filtration and industrial equipment. For project review, drawings, material specifications, dimensions, tolerances, quantity and application requirements can be sent to nico@innoetch.com.