archiphile Posted March 24, 2009 Share Posted March 24, 2009 (edited) I was just wondering what it would cost to machine an acme threaded rod and nut. I only need about 6-8" of threaded rod. So I would think that purchasing pre-made rod cost prohibitive to the application. Any advise would be greatly appreciated. Thank you in advance. P.S. the diameter of the rod is to be 5/8" and right hand thread 2tpi or so Edited March 24, 2009 by archiphile add more information Quote Link to comment Share on other sites More sharing options...
mike-hr Posted March 24, 2009 Share Posted March 24, 2009 I didn't check the machinery handbook, but I looked at Industrial Supply Equipment from MSC Industrial Supply , searched 5/8 acme, and rolled through a couple pages. I don't think 5/8-2 tpi is a common size. You can get a 5/8-8 nut for $18USD , and 36 inches of steel thread for $21. A machine shop with $50-$100/hr shop rate couldn't touch that. Quote Link to comment Share on other sites More sharing options...
archiphile Posted March 24, 2009 Author Share Posted March 24, 2009 Thanks I just thought that I would try and support my local machine shop, but ,not to that end. Quote Link to comment Share on other sites More sharing options...
orgtwister Posted March 24, 2009 Share Posted March 24, 2009 mcmaster-carr has 5/8 6 acme rod Quote Link to comment Share on other sites More sharing options...
martensite Posted March 24, 2009 Share Posted March 24, 2009 The thread for a fly press is acme,correct?? Is there any where to pick this and nut up in order to build your own ??? Not sure if this is correct place to post this so sorry in advance!! Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted March 24, 2009 Share Posted March 24, 2009 If it's for a flypress it needs to be a multi lead thread VERY DIFFERENT than a single lead thread. Flypresses put immense stresses on their structure; home building them is quite an endevor---I like watching the 2 3x4" thick steel bars flex when I slam the flypress home on what I have on top of them. I was assuming the original question was about repairing a post vise. Quote Link to comment Share on other sites More sharing options...
martensite Posted March 24, 2009 Share Posted March 24, 2009 Thks for the info guess i'll have to start saving pennies.Wasn't clear that they put out that much pressure!! Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted March 24, 2009 Share Posted March 24, 2009 Where flypresses excell is in sharp pressure spikes as the ram bottoms out and reverses directions---why they are good for coining as the metal "squirts" when the pressure spikes. Of course I have a large screwpress; 42" dia toroid; but it cost me under US$100 in mint condition... Quote Link to comment Share on other sites More sharing options...
saintjohnbarleycorn Posted March 24, 2009 Share Posted March 24, 2009 I think enco has the thread fairly cheap. Quote Link to comment Share on other sites More sharing options...
aametalmaster Posted April 2, 2009 Share Posted April 2, 2009 A Buttress Thread is what you want for high pressing applications. All of our stamping press's had them...BobButtress thread - Wikipedia, the free encyclopedia Quote Link to comment Share on other sites More sharing options...
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