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1. Beams for gantry (score: 1): Author: "Conrad" <conrad@conrad.uk.net>; Date: Wed, 28 Aug 2002 14:04:18 +0100; In my other, much smaller workshop (currently hut) I want to replace the huge 6" timbers that form the roof with smaller steel beams to gain a bit more headroom, and to get rid of a wooden pillar tha; /html/shop-talk/2002-08/msg00230.html (8,494 bytes)
2. Re: Beams for gantry (score: 1): Author: Rush <jdrush@enter.net>; Date: Wed, 04 Apr 2001 09:51:04 -0400; Your fundamentals are OK. But you may find that only custom steel fabrications will give you the desired headroom increase, since most standard shapes gain their stiffness from depth of section. Have; /html/shop-talk/2002-08/msg00233.html (9,724 bytes)
3. Re: Beams for gantry (score: 1): Author: Rush <jdrush@enter.net>; Date: Wed, 04 Apr 2001 10:10:55 -0400; You still have a deflection problem in the center. The beam will bow. To prevent that, most engineers use a standard I-beam shape which trades weight for depth to decrease deflection. This is just a; /html/shop-talk/2002-08/msg00235.html (9,991 bytes)
4. RE: Beams for gantry (score: 1): Author: "Conrad" <conrad@conrad.uk.net>; Date: Wed, 28 Aug 2002 17:01:09 +0100; Thanks again for you input Jon. Hmmm. I cant really accommodate that - might just about squeeze 5 inches, but I really don't want to rework the roof. I only have a budget for steel, none for custom f; /html/shop-talk/2002-08/msg00236.html (8,632 bytes)
5. Re: Beams for gantry (score: 1): Author: pethier@isd.net; Date: Wed, 28 Aug 2002 13:23:01 -0500; Shouldn't that be the other way around? Phil Ethier /// unsubscribe/change address requests to majordomo@autox.team.net or try /// http://www.team.net/mailman/listinfo /// Archives at http://www.tea; /html/shop-talk/2002-08/msg00238.html (7,227 bytes)
6. Re: Beams for gantry (score: 1): Author: Rush <jdrush@enter.net>; Date: Wed, 04 Apr 2001 14:58:32 -0400; As in almost all engineering problems. The answer is, "it depends." In this case Conrad already indicated that he was willing to give up some access on the sides to gain headroom in the middle. So fr; /html/shop-talk/2002-08/msg00239.html (7,695 bytes)
7. Re: Beams for gantry (score: 1): Author: Rush <jdrush@enter.net>; Date: Wed, 04 Apr 2001 15:08:07 -0400; That would be very smart. Also with in the do-it-yourselfer's bailiwick. Welding long like this can cause distortion though. Use good welding technique, like preheat and skip welding and don't be afr; /html/shop-talk/2002-08/msg00240.html (9,544 bytes)

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