Another common term is "engineer's blue". If you don't want to use a Sharpie then order https://www.amazon.com/Permatex-80038-Prussian-Fitting-Compound/dp/B000HBM86 Q/
> -----Original Message----- > From: Gene Heskett [mailto:ghesk...@shentel.net] > Sent: Friday, July 03, 2020 9:50 PM > To: emc-users@lists.sourceforge.net > Subject: Re: [Emc-users] More BS-1 clone headaches.- > > On Friday 03 July 2020 20:46:46 andy pugh wrote: > > > On Sat, 4 Jul 2020 at 01:25, Gene Heskett <ghesk...@shentel.net> wrote: > > > > Blue. > > > > > > I thought of that, but I don't know where I could src some of that > > > locally. Is "diechem blue" the right search term to feed google?? > > > > Not really, Dykem is a marking out fluid rather than a contact testing > > compound. > > > > You can see what happens with just a marker pen, though. (it will work > > just as well as Dykem) > > > If you can get it clean enough to stick, formerly greased steel is not a > good candidate. Ink with acid etch might work but I've not see any of > that since I was building titan sites around EAFB in 1960-61. > > > In the UK I would use "Stuarts Micrometer Blue" but I don't know what > > the US version is. > > > > But the US version of "marker pen" seems to be "Sharpie' > > If you can get it truly lox clean. Or you can find one marked "permanent" > which has solvents that can penetrate the lube film. > > This might be a place for candle smoke if it wasn't such a bitch to > re-assemble for testing, I usually smoke rifle actions to get a good > start on bedding them into the wood. It transfers to the wood on > contact, telling you where to carve next. Another possibility on this > side of the pond might be Birchwood-Casey's Cold blue, which can blacken > clean steel. And its un-tough enough to show the contact pattern pretty > easily. That I can get at Wallies. No clue if they'll be open tom. > though as tom. is Independence day on this side of the pond. > > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
