Maybe the toner isn't printing "heavy" enough on the
paper?....try increasing the toner density.
Charlie
>My problem isn't getting the toner to transfer well, it's etching.
Lots of pinholes. The toner is too porous. I've tried the lighter fluid method of fixing the toner but no workie. The foil method will probably work if I can get the stuff hot enough to transfer. I am using original HP toner. Any thoughts ?
Doug Forbes
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Well, I tried the cold transfer method and… yeah.. no dice at all. Probably my mixture wasn’t working right.
Anyway, for sport, I went back to the process I had tried before. My PCB patterns are bigger than what’s out there on youtube, and I had been printing them on separate pieces of paper. This time, I printed them together on one piece of magazine paper from Hotrod Magazine (love that magazine). Then I cleaned the board, let the iron get hotter than the blue blazes of h—ll.. and then went for it. Spent a good 10 minutes really working the iron – first back and forth nice and slow like a laminator, then faster, on the theory it would keep the paper hot all the way around. I looked really closely and could kind of see where the toner was coming off the paper a little bit, and really worked the front end of the iron down on spots I thought were suspect. Then I dunked the whole thing in a tub of cold water and let it sit for 2 minutes. Anyway, voila! The result:
So that disproves that my compatible toner won’t work.. at least for the ironing process. Don’t know if we’ll have a problem when we etch? But yeah.. it looks really good, I think. I kind of figured the problem was ‘operator error’ here since 80%+ was coming off on my previous tries.
Now that I sort of have a procedure that works I think I’ll keep at it and get my other patterns done. Lots of Hotrods lying around. J
Brad
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