04-30-2010, 11:18 AM
actually what he is describing is heat transfer `iron ons' which are quite accurate (but as I can say from personal experience- less than perfectly accurate)
photoresist is much more accurate
(I can post the results of a heat transfer pcb shortly as soon as I find my cameras usb cord..)
its what i used with `mostly good' results, but a photoresist etch is MUCH MUCH better
and the etching time is equally (actually much more)important- in fact I would say that the etching is 99% of the accuracy-
under and overcuts are the result of blurring (via printing method)
and etching (time)
photoresist is much more accurate
(I can post the results of a heat transfer pcb shortly as soon as I find my cameras usb cord..)
its what i used with `mostly good' results, but a photoresist etch is MUCH MUCH better
and the etching time is equally (actually much more)important- in fact I would say that the etching is 99% of the accuracy-
under and overcuts are the result of blurring (via printing method)
and etching (time)
poopsie chicken tush