Whether the refurbished Toner cartridges like HP88A etc as in HP P1007 laser printer,would suit the TTS method? I suspect that they might not use Plastic powderYes I think you are right.
There is a something I read about using silk screening but with out poking holes in it but instead oil to wet the paper set it up on the photo resist and put it in the sun for 15 minutes. I wonder if that same concept would work with PC boards. I have plenty of old photo resist boards. This gets away from the vagaries of heat (yes the toner fuses at 275 to 290 °F and good luck finding anything that can control that tightly) and pressures that can move the traces (doubled sided trouble).
I've always liked the photo resist method and I wonder if going through the pin holed toner traces and through the oiled up paper that it fills in those pesky pin holes. Yep I think it is high time to try that.
Whether the refurbished Toner cartridges like HP88A etc as in HP P1007 laser printer,would suit the TTS method? I suspect that they might not use Plastic powder
When you do tests with fine lines you need to inspect the toner on the transfer paper after printing. Some printers are better then others at reproducing the fine lines especialy on the Pulsar paper which is slick. If there it too little toner it might tend to bead and break the line.
I do not do production quantity or large PCBs. I have done a good number of PCBs using the pulsar system and seldom use a trace larger then .016 for anything but power and gnd. Most often I route signals with .016 or .012 and drop down to .012 or .010 to squeeze between pads. Unless I goof I get good results with no touchup required.My personal feeling is no matter what printer you use the minimum line width for the thermal process is about .020" for reliable time after time repeatability
Have you read the rest of this thread? Plenty of people easily get 10mil traces using TT (Toner Transfer). Many people can get much less than that. 10mil is my standard width, but I've done 6mil without much problem and can likely go lower. I use regular photo paper and an iron.My personal feeling is no matter what printer you use the minimum line width for the thermal process is about .020" for reliable time after time repeatability and if you have the time and the resources to test out the best printer for this process you probably can get to your .010" spec. Anything smaller than that and you are risking what you say with beading etc., and I think it also has to do with the grain size of all the particles in the toner and who has that info.
From this same thread.To those that claim they can get a 10 mil line I need to see that. While I believe you can get a 10 mil line over short transitions I really doubt with this method you get easy repeatable results.
Again thank you Pulsar with a stellar product with a repeatable and reliable system.
You say that, but you can't get it to work. I don't consider min 20mil traces to be working as it means most of the chips I work with would be unusable. I would suggest getting help from the Pulsar guy.
Angelgroove said:The reason I say that is because I think we are in the beginnings of a home brew hobby related Renaissance with PIC microcontrollers and the ability to make you own PC boards. I can see already three to four different job postings right now.
10 mils
DIY Toner Transfer Paper (cheap and easy))
DIY Toner Transfer Paper (cheap and easy))
10 mils using Pulsar with steps
DIY Toner Transfer Paper (cheap and easy))
8mils
Ethernet for PICs using ENC28J60
8mils close up
etching circuit boards
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