Probably, but expensive and useless are in the eye of the beholder, and I have yet to behold. Hope springs eternal, to coin a cliche or three... -- Dave ... ...
For my uses, I have found the boards that are just a bunch of single hole solder pads are usless for my purposes, but I did find some very thin board material...
Hi Group I also dont think they are useless, but they are expensive indeed. For flexible led clusters for example, this matereal should be great. Cheers ...
Can anyone suggest a UK supplier of small quantities (i.e. offcuts) of flexible or thin scissor-cut pcb stock? Possibly a board manufacturer in the North...
Hello All, I have a fairly complicated single-sided pcb that I am doing with toner transfer. The tracks and through-hole component pads are 12 mil. After...
I believe there is an "ultrafine point" sharpie. I haven't tried it, but maybe you could cut two sides off a "fine point" sharpie with a razor blade, to get a...
Hello Len, ... In approx a month of time, Guja can organize a friend to bring one A4 sheet of thin, flexible FR-4 for you to pick it up somwhere in ...
Hi John I've been using the STAEDTLER permanent Lumocolor "S" 313-2 Its red ink, the pen has a black body with a "S" on the red cap The ink is a little clear...
Hi John Another tip you can always trim the ink marked tracks with a little scraping with a scalpel a common practice in the drafting office back in the hand...
... Depends on HCl concentration. If it is high, not too well. If it isn't so high it works OK. You want a fresh pen though (get the refill bottle) to get a...
Hi John, Don't bother trying the ultrafine point Sharpie markers. The ink doesn't work as an etch resist... Same goes for the "huge" chisel point industrial...
Why not just a brush and a few coats of India Ink or paint. You can make a mask if you can't do it free hand. A good bush with long bristles is easier to use...
A fine tipped brush and signpainter's ink works fine also. U want a paint that is not water soluable, and dries quickly. Sharpies are the right type ink, but...
... Except that India Ink is lampblack (carbon) suspended in gum arabic solution. In solution the gum arabic acts as a colloidal suspension medium and in the...
I received some of the board material in question, and while it is interesting it doesn't seem useful for anything I am building at the moment. Like you, my...
Forgot to mention that the stuff my girlfriend donates is fingernail polish!! Sorry bout that :-) A fast drying enamel. Comes off easily with lacquer...
I've been following this subject for a few days now and I guess it's time I add a note about my touch up solution. I use a product that I bought at a local A C...
I was going to mention this one, Fingernail polish works great as a resist (at least in Ferric Chloride). Dries rock hard in a few minutes. I've used it to...
Update on this paper, besides Sam's Club, I was in Office Max last week and they actually had it on the shelf (Hammermill OfficeOne Glossy Paper). Shoot,...
Hullo again all,, I am having a bit of a problem with figuring out how ,if anyway, one is able to do a touch up when making a transfer based on the UV...
... hhhmmmm,, I dunno if I understand-- you mean how do I know if a mistake has been made after the developer? it would be obvious I assume once compared to...
Hi All, I am new around here and new to the filed of etching. Though I have tried things with toner transfer and it has worked but I couldn't get rid of pin...
I've gotten some breakout boards in the past from Sparkfun that worked well for SOIC but I now need a few for a uSOIC which has 0.5mm lead pitch for 10 pins...
... These are the types of boards I'm most likely to make at home. Just design one, put four to six copies on a small panel, and etch them. Choose the best...
