On Sun, 01 Jul 2018 00:11:56 -0700, you wrote:
I am working on a PCB for etching using toner transfer. My first attempts
show the default trace dimensions (clearance 0.2 mm, track width 0.25 mm)
do not transfer well - there are visible breaks in the traces, some of
which barely transfer at all.
What dimensions (without excessive width) are likely to be more
successful?
Those are actually decent and repeatably so. However, the following
factors really make a difference in toner transfer:
1) cleanliness of the board.
2) type of transfer medium
3) toner and resolution of laser printer
4) heat and pressure and method to transfer the toner
5) etching time
Just off hand, you may not be getting the board/toner hot enough. Not
all toners are the same.
That's a common problem.
