I think I have come up with a great new toner transfer technique!
This has to be the darkest most perfect transfer yet. With an iron I have always had some voids especially in the places where a large area of copper masked and runs near the edges of the board.
Sorry I should have snapped some pics but I have a habit of coloring over some of the toner with a Sharpie because of the problems I was having. I should have snapped a picture first.
Here is what I did.
I printed my layout on a sheet of magazine paper.
I have one of those flat top electric stoves. I suppose you could get a steel plate and use that on a gas or conventional electric stove.
I heated the burner to around 200 degrees F.
I place a couple of sheets of add paper on the burner (you may want to place a couple of paper towels first to prevent transfer of the ads to the stove).
I placed the PCB copper side up with my layout on top of the copper.
I placed a paper towel on top of the whole works. I did this after I realized print was being transferred to the rolling pin I used (below). You may want to use the paper towel to prevent your wife from hitting you with the rolling pin.
I rolled a rolling pin over the board. After I was pretty certain the printout was racked down fairly well, I rolled the pin past the edges of the board. I rolled the pin for about ten minutes.
I removed the board from the heat and dropped in in very hot water with dish washing soap. I soaked for 15 minutes or so and pealed off the paper.
This has to be the darkest most perfect transfer yet. With an iron I have always had some voids especially in the places where a large area of copper masked and runs near the edges of the board.
Sorry I should have snapped some pics but I have a habit of coloring over some of the toner with a Sharpie because of the problems I was having. I should have snapped a picture first.
Here is what I did.
I printed my layout on a sheet of magazine paper.
I have one of those flat top electric stoves. I suppose you could get a steel plate and use that on a gas or conventional electric stove.
I heated the burner to around 200 degrees F.
I place a couple of sheets of add paper on the burner (you may want to place a couple of paper towels first to prevent transfer of the ads to the stove).
I placed the PCB copper side up with my layout on top of the copper.
I placed a paper towel on top of the whole works. I did this after I realized print was being transferred to the rolling pin I used (below). You may want to use the paper towel to prevent your wife from hitting you with the rolling pin.
I rolled a rolling pin over the board. After I was pretty certain the printout was racked down fairly well, I rolled the pin past the edges of the board. I rolled the pin for about ten minutes.
I removed the board from the heat and dropped in in very hot water with dish washing soap. I soaked for 15 minutes or so and pealed off the paper.