> Andrew W wrote: > > This picture is certainly helpful, but > does raise some questions. I notice some > waviness in the outlines, but I am guessing > that may have been intentional? > <SNIP> The original robot picture did not have straight lines. However when etching down 0.35mm you are always going to get undercut and the undercut on toner transfer is variable. For a dial you would not need anything near 0.35mm (0.014") depth. I don't get consistent result with TT and under 10thou lines and if I am going lower than that I use photographic techniques.
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Re: etching the OD of a cylinder to create a graduated dial
2013-03-21 by cunningfellow