On Tuesday 05 May 2009, Erik Christiansen wrote: >On Mon, May 04, 2009 at 11:38:55AM -0400, Gene Heskett wrote: >> They are now included at >> <http://gene.homelinux.net:85/gene/emc> as 'probe-*.jpg' > >Many thanks. I've taken the liberty of snarfing a copy.
NP. That is why I took the pix yesterday. No doubt the design could be improved. The brass seems a little flexible to me, and that steel point is purposely polished so as not to damage whatever I'm scanning. Larger tubes would have been nice, but then we're making out own opto stuff cuz we'ed need an even wider gap. Not impossible, but more trouble. I could dup what I put on the powder scale right out of the drawers at the shack without that much trouble for the next version, if there ever is one. >> These opto's I used have about a .150" gap. It holds the thing together >> when assembled. I don't recall now if they have schmidt outputs or not. > >None of those I've come across do. Of the two types I have, one just has a >photodiode, the other a phototransistor. It'll be fun to experiment. >(Once I've built the EMC box. But the mobo is winging its way here now.) > >> Now this is Off Topic: > >Having hunted pigs with a 30-06, and once with a 7.62 mm Mauser made >for the Turkish army in 1935, I think I'd be more comfortable with the >Ackley-06 than the 22-250. The bark of those high powered small calibre >guns is deucedly unkind to the ears. Either of them are hard on the ears, but no comparison between one of them and a 22" barreled 264 Winchester, that hits you in the gut from 4 benches over. I wear a set of 30db mufflers now days, but I wore out the first 2 barrels learning that. Can you say tinnitus? :( My Ackley weighs in at 13 pounds empty, so its a pussy cat to shoot. The 22-250 is all of 11 pounds so there isn't even a recoil pad on it. 6-24 scope on it these days. >I'll keep the balloon idea in mind. >I hope they can blacken stainless. (Though I suppose a camouflage sleeve >would cover that.) They do, by iron plating it, and then bluing the plate. But paint coatings are getting better all the time, look at some of the camo painted stuff the next time you visit your local powder peddler. That stuff is at least as durable as the old slow rust blue, which beats the bejesus out of hot tank stuff for durability. Neither is proof against a turkey salad sandwich dressing though & the epoxy or whatever that paint stuff is should be. I have done the slow rust a couple of times, good surface, holds oil well, and is dull enough not to reflect like a mirror and spook game. Wears very well too, unlike the hot salts. But it also takes a couple of weeks to do. And mixing the stuff can only be done outdoors, with a fan helping the prevailing wind. Wrong order of mixing can also boil & explode. Its 50% Nitric CP, and 50% Hydrochloric CP, and add enough clean blued tacks (slowly and stay upwind of the smoke) until there is no more reaction, then decant the top half or a little more for use, and dig a hole & bury the sludge. About a cup of each will make you a lifetime supply. Store in glass, with a glass stopper. Polish the steel 100% clean and bright, boil in oakite to remove all traces of oil, plug the bore at both ends, and handle with white cotton gloves once its cleaned & until you think its done. Take a cotton swab and apply this stuff to the steel, which will turn bright red with rust instantly. Let it set for a few hours and 'card' (dull wire brush, devoid of any oil contamination, boil it in the oakite too) the rust away, leaving a light grey color. Repeat till it doesn't get any darker. Oil it up and go hunting. If it does get a spot of rust, steel wool it away, re-oil and the surface is restored. That of course is a simplified description, don't try this unless you are sure of what you are doing as those are the 2 most violent acids we have. You have been warned... -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) This sentence no verb. ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
