I work with some machine builders and they generally use McMaster Carr for the things that they need either quickly for an "ok" cost or for something that they can't find elsewhere. MC has such a huge range of products and they ship very fast. Many times we would be working on a machine and suddenly realize that we need a schedule 80 oddball pipe fitting. A quick search would find the part, place the order via UPS ground and it would show up the next day in central Indiana!! That is pretty hard to beat when you are working 14 hours a day to get a custom machine out the door, don't have time to talk to salesman and need it quickly! Next day air charges can kill you. MC gets shipments to much of the midwest overnight via UPS ground.. I find that amazing.
Like I said, their prices are "ok" but if time is money, then their prices look much more attractive. :-) Dave On 11/4/2013 12:56 AM, John Kasunich wrote: > > On Sun, Nov 3, 2013, at 02:31 PM, Gene Heskett wrote: >> On Sunday 03 November 2013 13:56:49 John Kasunich did opine: >>> You really need to get familiar with the McMaster Carr website. They >>> tend to sell decent quality stuff, and even if you are so far back in >>> the woods that they have to ship in sunshine, I'm sure UPS will >>> deliver. (In fact, UPS probably brings in the sunshine.) McMaster >>> ships from Aurora Oh, so it is probably only 2 days from you. >> While I have bought some stuff from McMaster Carr, its more because they >> may be the only ones stocking what I need. Either way their prices are >> astoundingly high. Take a nook bronze nut for 1/2" 10 tpi ACME thread, >> with a 3/4" OD, 11 tpi thread (IIRC) on the outside, so you can use two and >> adjust easily for very low backlash. 8 or 9 years ago when I bought them >> and a stick of black oxide coated, 1/2 10 tpi acme rod, those 3 pieces were >> just south of $175. And UPS bent the bolt, about 1/8" in its length. I >> straightened it as best I could and used it. I should have bought a >> Chinese ball screw for about that money. A longer one for the lathe was >> only $138 delivered to my front deck this past summer. > This discussion was originally about taps, and you not being able to > get what you need from the local hardware store. Good luck getting > acme threaded rod or nuts there. Yes, the acme nuts from McMaster > aren't cheap. For that, you find someone who specialized in Acme > nuts (or get ballscrews from ebay). > >> They may have it, but their search engine sucks, worst in the business >> and if you do manage to find it, they are 2x to 4x too proud of it in the >> $/item column. > I just went there, typed in "taps". Got me four pictures, "taps", "tap > cabinets", "tap holders", and "helical insert taps". Clicked on taps, > got a sidebar with a list of thread sizes end such. Clicked on 8-32, > got a list of types. Clicked on spiral point, and got a full page of taps, > ranging from high-speed steel in black oxide or bright for $6.20 each, > coated taps for hardened steel up to C40 for $8.82, high performance > vanadium steel with various coatings from $11 to $22 (the $22 one is > designed for production tapping in hardened steel), cobalt steel for > $8.17, and at the gold plated end of the scale, solid carbide for $102. > > Clicking on spiral flute instead of spiral point gets you a similar > selection. Spiral flute works better in blind holes, but I prefer > spiral point whenever I can possibly design for a thru hole. > > I've used their plain old HSS taps (the $6.20 ones) and have had > great results. I don't know what you consider too expensive for > a tap, but I'm satisfied. > ------------------------------------------------------------------------------ Android is increasing in popularity, but the open development platform that developers love is also attractive to malware creators. Download this white paper to learn more about secure code signing practices that can help keep Android apps secure. http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
