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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. |
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Typical dimensional tolerances for photo-etching
ETCHED DIMENSIONAL TOLERANCES |
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Metal thickness (T) |
Tolerance |
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< 0.35 mm |
± 0.05 mm |
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≥ 0.35 mm |
± 15% of T |
MIN. CUT OUT (HOLES OR SLOTS) |
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Metal thickness (T) |
Min. hole size |
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< 0.25 mm |
1.3T |
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≥ 0.25 mm |
T |
MIN. WIDTH OF A BAR BETWEEN OPENINGS |
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Metal thickness (T) |
Min. land size |
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< 0.25 mm |
1.3T |
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≥ 0.25 mm |
T |
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 questions |
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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.
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