Homebrew PCBs

Cheap TRF experiment:
http://www.learnmorsecode.com/laminator/trf/index.html


On 02/02/2017 12:04 AM, craigl2@... [Homebrew_PCBs] wrote:
>
> Use your laser printer to make transparencies.
>
>
> When I was trying toner transfer to make PCBs I bought some "Green 
> TRF" from the "PCB Fab - in a - Box" site.  It is used to further  
> protect the toner while etching the board. I also bought some "Black 
> TRF" and some "White TRF" to use in making labels. They apparently no 
> longer sell the black.
>
>
> I have used the "Black TRF" on laser transparencies to make a 
> negative. It gives blacker areas than any inkjet or laser toner could 
> ever possibly do. You can run it through any laminator, even a cheap 
> $20 one, It does not need to be one capable of handling PCBs.
>
>
> The foil is available in many colors from various sources including 
> Amazon and eBay. Search for "reactive foil". One widely available 
> brand seems to be "Heidi Swapp Minc Reactive Foil". Probably any color 
> would work although the pigment colors may work better than metallic 
> colors. One comment on Amazon about the black foil in particular said 
> it was flimsier than the others and harder to use. Any tiny pin holes 
> can be touched up with a Sharpie or other fine tip pen.
>
>
> Craig
>
>