I'm looking for advice on my DIY PCBs. For some reason the toner transfer step never goes perfectly. I have attached some images to show you what I mean. Is my iron not hot enough perhaps? Also, are there known methods for attaching the magazine paper to the PCB so that it does not slip during the ironing?
Or do I need to just concede that this method is rather inexact and allow even larger tolerances? I don't know much larger I can make them though since it looks like the .1" spacing for DIPS isn't even consistent.
Thanks for any suggestions
Best Answer
I wish photos were higher quality, but from what I can see it is too hot/too long ironing. Try to add a piece of cloth between your PCB & iron so that pressure would be more even.
Usually, you need as little ironing as possible as long as toner does not fall off when washing out paper (also, wash paper out in cold water, not hot).
Toner transfer Jedi can make 0.1mm line reliable (which is 0.005"), and only some practice needed to get to 0.2mm.