> Andrew W wrote:The original robot picture did not have
>
> 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>
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.