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Exella - photoetching, photo etching, fotoincisione, fototranciatura, eyewear, glasses, modelism, fuel cells, chemical machining

Technical drawings used for photo-etchingphoto-etching for fuel cellsquestions
Artwork for chemical engraving
To prepare the artwork for the chemical engraving, we need a pattern or a drawing on paper, or in any of the following graphical formats: dwg, dxf (AutoCAD or other softwares that use these formats), 3dm (Rhinoceros), stl, igs, cdr (Coreldraw), ai (Illustrator), pdf, fh11, tiff, bmp, tga, eps and others.

From EXELLA's experience we advice the technical designers to comply with the dimensional tolerances indicated here, and also to take into consideration that the type of material, the thickness and the shape of the piece can influence on the tolerances. Possible guaranteed characteristics will be pre-emptively accorded.
Tolerances for chemical engravingTechnical data for photo-etchingdatasheets
Typical dimensional tolerances for photo-etching

ETCHED DIMENSIONAL TOLERANCES
Metal thickness (T)
Tolerance
< 0.35 mm
± 0.05 mm
≥ 0.35 mm
± 15% of T


MIN. CUT OUT (HOLES OR SLOTS)
Metal thickness (T)
Min. hole size
< 0.25 mm
1.3T
≥ 0.25 mm
T


MIN. WIDTH OF A BAR BETWEEN OPENINGS
Metal thickness (T)
Min. land size
< 0.25 mm
1.3T
≥ 0.25 mm
T
Digital artwork processing for photo-etchingartwork chemical machiningquestions
Photo-etched parts for glasses, eyewear,jewelry, railway, motoring, modelism,  fuel cells
For the beginning of the production of every article, and only for the first time, it is paid a contribution for the digital artwork processing of a few tens of euro.
There are no annoying quantity limits and the prices do not depend on the quantity.
Additional technical informations and data can be found on the datasheets section.
Photo-etching page
Materials for photo-etching
Design guidelines for photo-etching
Exella Photo-etching and chemical machining
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