This relationship does vary as the metal thickness changes . In most cases, the width between the holes is up to you. The smallest corner radius should be directly proportional to the thickness of the metal. If you need a smaller radius, it may be possible. Please call us to discuss how this can be accomplished.
Outside corners tend to etch more sharply than inside corners.
Cusp or Bevel and Metal Thickness Etchants attack materials laterally as well as vertically. This results in a condition for a hole known as a cusp or a bevel. The relationship of a cusp or a bevel to metal thickness depends on one-sided or two sided etching. The Chemical Milling Process PPFI's metal etching process uses Computer Aided Design and photographic imaging to produce precise, thin metal parts. The metal is coated with photoresist and exposed to ultraviolet light.