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1. Re: Heat question (score: 1): Author: Michael Porter <portermd@zianet.com>; Date: Tue, 06 Dec 2005 19:58:47 -0700; Well, all that depends upon heat loss (Z factor) through the materials. The purpose of insulation is to slow that rate (which is why it's always more economical to put money into insulation than fuel; /html/shop-talk/2005-12/msg00074.html (9,224 bytes)
2. Re: Engineering 101 (score: 1): Author: Michael Porter <portermd@zianet.com>; Date: Tue, 26 Jul 2005 01:52:15 -0600; Just to amplify on this a bit. Ball screws are inordinately expensive new (depending upon diameter, over $100/ft). The reason for this is that their most typical use is in precision machining and pos; /html/shop-talk/2005-07/msg00158.html (9,319 bytes)
3. Re: Engineering 101 (score: 1): Author: Michael Porter <portermd@zianet.com>; Date: Tue, 26 Jul 2005 15:15:24 -0600; I think the parallel legal thinking is this: it's up to the patent (copyright) holder to defend the patent (copyright). That means they have to issue fair warning that the patent (copyright) is being; /html/shop-talk/2005-07/msg00169.html (9,803 bytes)
4. Re: WOOT! the tig is here! (score: 1): Author: "Michael D. Porter" <portermd@zianet.com>; Date: Sat, 26 Mar 2005 01:39:21 -0700; All this depends upon the transformer setup of the machine and the output voltage. If your input to that machine is 110V-220V single-phase, the current requirement might be considerable. If, on the o; /html/shop-talk/2005-03/msg00108.html (9,769 bytes)
5. Re: 2005 toyota tacoma (score: 1): Author: "Michael D. Porter" <portermd@zianet.com>; Date: Sun, 13 Feb 2005 21:03:43 -0700; If the light goes on at variable mileage, but always in the 12K miles range, my guess is that the computer is tabulating the time the engine is running or is proportionally factoring mileage and runn; /html/shop-talk/2005-02/msg00079.html (8,493 bytes)
6. Re: Bearing question (score: 1): Author: "Michael D. Porter" <portermd@zianet.com>; Date: Tue, 22 Feb 2005 22:33:09 -0700; One indication of which ones to avoid would be to take the numbers you have to an industrial supply shop, and ask which manufacturers offer those bearing types and sizes in ABEC 7 grade. Most people; /html/shop-talk/2005-02/msg00121.html (8,960 bytes)
7. Re: Bearing question (score: 1): Author: "Michael D. Porter" <portermd@zianet.com>; Date: Tue, 22 Feb 2005 23:54:03 -0700; You're quite right about that. I'd forgotten that they are closing plants in the US (there was some hubbub about one of them in Ohio being cut back noticeably a few months ago). Cheers. -- Michael D.; /html/shop-talk/2005-02/msg00123.html (7,254 bytes)
8. Re: Chrome moly and normalization (score: 1): Author: portermd@zianet.com; Date: Sat, 01 Jan 2005 14:19:28 -0700; Apart from what else has been said, be sure to check the rules governing materials for cages. Some rules do not allow 4130. It is stronger, but also somewhat more brittle. If there's sufficient loadi; /html/shop-talk/2005-01/msg00003.html (9,622 bytes)
9. Re: Will oil really "wick up" a dipstick? (score: 1): Author: "Michael D. Porter" <portermd@zianet.com>; Date: Fri, 01 Oct 2004 11:59:07 -0600; And, as someone once said long ago, "it's not like a car. You can't just pull it over and park it." (!) Cheers. -- Michael D. Porter Roswell, NM Never let anyone drive you crazy when you know it's wi; /html/shop-talk/2004-10/msg00008.html (8,103 bytes)
10. Re: New Idea for flooring (score: 1): Author: "Michael D. Porter" <portermd@zianet.com>; Date: Wed, 06 Oct 2004 14:05:29 -0600; Quite the case. Vulcanizing changes the composition of the rubber from a thick liquid to solid, and there's no easy way to change it back again. The combination of sulfur, heat and pressure modifies; /html/shop-talk/2004-10/msg00039.html (8,887 bytes)
11. Re: complicated modern cars (score: 1): Author: "Michael D. Porter" <portermd@zianet.com>; Date: Tue, 13 Jul 2004 01:32:36 -0600; I'll be the first to acknowledge that there are some dumb guys working in shops, but virtually all tanks these days have drains. Simple procedure. Just get the drain bucket, open the plug, and let ga; /html/shop-talk/2004-07/msg00065.html (10,984 bytes)
12. Re: complicated modern cars (score: 1): Author: "Michael D. Porter" <portermd@zianet.com>; Date: Tue, 13 Jul 2004 17:58:45 -0600; Exactly--many stations then were selling gasohol, and with rotten tanks and lots of flooding from heavy rains, it happens. The owner claimed that he bought fuel from only one station, which claimed t; /html/shop-talk/2004-07/msg00083.html (8,318 bytes)
13. Re: parts cleaners (score: 1): Author: "Michael D. Porter" <portermd@zianet.com>; Date: Mon, 15 Mar 2004 21:36:53 -0700; This is true, but it is noted in the spec sheet for Simple Green. It will slowly attack aluminum alloys (using it as an ultrasonic detergent would accelerate its erosive properties). Cheers. -- Micha; /html/shop-talk/2004-03/msg00069.html (8,945 bytes)
14. Re: parts cleaners (score: 1): Author: "Michael D. Porter" <portermd@zianet.com>; Date: Tue, 16 Mar 2004 00:44:54 -0700; See the following: http://www.simplegreen.com/faq.html Aluminum - Is it safe to use Simple Green on aluminum? Simple Green products have been successfully and safely used on aircraft, automotive, ind; /html/shop-talk/2004-03/msg00071.html (10,429 bytes)
15. Re: carry around tool kit. (score: 1): Author: "Michael D. Porter" <portermd@zianet.com>; Date: Fri, 30 Jan 2004 17:58:58 -0700; They used to--don't know about now. Decades ago, my ex was fond of leaving the lights on when at her part-time job, and after she made six road calls for a jump in about eight months, our service was; /html/shop-talk/2004-01/msg00134.html (8,700 bytes)

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