On Monday, June 11, 2012 08:12:56 PM andy pugh did opine: > On 10 June 2012 19:52, gene heskett <ghesk...@wdtv.com> wrote: > > If I wanted to buy some stock steel that carved just as well, or > > perhaps even better, what alloy should I be ordering from one of > > these online metal peddlers? > > I use a lot of what we call "Silver steel" in the UK, and I think you > call "Drill Rod" in the US. > http://en.wikipedia.org/wiki/Silver_steel > I think it is approximately the same as the popular O1 tool steel. > Being a tool steel is it strong in the annealed state, and can be > easily hardened for more demanding uses. > In the as-shipped state, it machines well.
I ordered 3 pieces of 1/2" round 01 to make the nipples with, then 3 pieces of something flat & .125" x .3125" in 01 to make a striker latch out of. I am inventing a latch to hold the striker closed once it has fallen and ignited the primer. And it has to be able to engage the latch in about .001 seconds. Next question: what is the sheer strength of a 3/32" roll pin well supported on both sides of the center, loaded portion? According to my calcs, it will need to stop 2 oz being blown back with an instant 1000 lb push on it, catching it before it backs up more than 20 thou. 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) My web page: <http://coyoteden.dyndns-free.com:85/gene> Vermouth always makes me brilliant unless it makes me idiotic. -- E.F. Benson ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
