Monthly Reminder, please read: Subject lines: Remember to change the subject line if you are straying from the original thread. Please change the subject line...
It's a good idea to use the pre-coated PCB material fairly soon after buying it, as the shelf-life is limited. I find I get rather poor results when using...
please use the search function - we discussed this not too long ago. 2 methods: dry film (i don't know about) liquid resist basically you need the "laquer". ...
i had some REALLY old clad here. it was several years old. with longer exposure and cleaning of the "cover tape" residue with "pausklar" it worked. but i can't...
... Oops. Guilty. Guess I had always wondered, but never got around to asking, and just jumped on the opportunity to ask when I saw the other post. Sorry. ...
I can only have experience with negative dry film resists. Generally the longer its been on there the more difficult it is to remove an invisible residue...
... buying ... of ... technique. Leon, Evidently it depends upon the chemical used to coat the boards. There are different chemicals and I cannot tell you what...
... Tom, << sorry for the length, but you asked ;-) >> My program just uses a data file which is standard information in the "xx","xx","xx" format. The...
... had ... very ... than ... No, It is the positive etch. It does, however have a sheet of plastic film that you have to peel from the positive etch side of...
The macro facility on my digital camera (Fuji 2400Zoom) only lets me go down to 10 cm. I thought I'd experiment with a cheap 14x magnifier held in front of the...
looks funny.... a lot of "tunnel view" i achieved good results with pointing my webcam into the microscope. i used it very close to the eyepiece and adjusted...
thanks... good to know that... experiment some more, i got unexpected good results with the microscopescope/webcam setup. but the damn cam has a too poor image...
My ferric chloride etchant was obviously exhausted, when I was etching a couple of small boards this afternoon, so I sloshed in some H2O2, reasoning that it...
My ferric chloride etchant was obviously exhausted, when I was etching a couple of small boards this afternoon, so I sloshed in some H2O2, reasoning that it...
so it seems... h2o2 is a wonderful oxydizer... just make sure not to generate lots of clorine gas when using with hcl/fe3cl. you will smell this. then it is...
Today I needed a board.... NOW...... so I made one. Wish I had through hole plating, but that would only have added some more time, I hand wired the via's by...
... The printer is not as big an issue as you think. I have done boards with FPGA on them in the past with a laser printer. All of my boards have been made...
... I spent 2 years looking for a cheap way to get good consistant print-outs. Lasers never worked for finer stuff. If you can say definitely that you can do ...
... I've just got a cheapy Cannon S330 (600 x 600 DPI black) that I will test soon for PCB photomasks. It has AUD$9 black ink carts. It would be interesting to...
Mike, That's the reason I posted this today.... I'm also sick of the same old crap about lasjer jet not being any good... it really is misinformation... The...
... i'll ... double-sided ... perfect ... connectors ... and ... stylus colour) ... Russell, Where are you finding these $5 and give away printers on E-Bay? I...
... Show me a footprint of 0.5mm pitch 256 pin QFP done on a laser without most of the pads shorting and i'll be happy. ... The blacker the film, the less...
... Russel, I just lately experimented a lot (well, was forced to do so due to the transition to through hole plated boards). My findings were that the printer...
i believe that it is possible. i don't doubt that. but with my old laser jet IIID and with a bad cheap toner and with poor cheap ohp transparencys i can't to...
