Homebrew_PCBs

Check out your print image quality options.
Mine defaults to NORMAL and had the option for DRAFT...which uses less toner and is lighter.
Perhaps your default is set to DRAFT.
You can always print again on the same paper to lay more toner layers.

Noting that toner will ALWAYS have microscopic pitting that can be attacked and etched
so I have resorted to always using the widest traces possible ... not the thinnest traces possible
and...
always tracing over the toner with a black Sharpie or EDDING 404  or STAEDLER LUMOCOLOR PERMANENT
marker.

 

Will do.  In the last day I have managed to pull off two perfect transfers with magazine paper and my iron.  I clean the boards more heavily.  When ironing, I take a 10 minute pause and then resume.. for some reason it seems to help.

 

However one issue I’m seeing and had before with the magazine paper is that the printer is not putting enough toner down.  You can see a pixelation that looks just like what you see if you look really close at a magazine photo.  In spots, even though it has clearly lifted all the toner from the paper the toner is thin enough to leave micro traces of visible copper, which in turn gets attacked or pitted by the etchant.  Not sure how to get a thicker toner down or if maybe my ‘compatible’ toner is part of the problem.

 

From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
Sent: Friday, July 7, 2017 6:56 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Re: Vintage PCB toner transfer problems IRON pressure

 

 

Brad,

Have a look at the videos in the files section of my project:

https://hackaday.io/project/3363-apache-al13p-tl-320b-one-pass-pcb-toner-xfer

 

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