Dangit Tack, I thought we decided 15 years back that press needs 4 skatewheels on the cylinder to roll across the header and a boat winch to lift & lower the bed.
What happened?
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A website I have used for many years
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I've been able to build some great tools and projects without knowing all that crap. Here's two of my builds. I took piles of steel and built me a couple of beautiful hydraulic presses out of them,,, the 50 ton press was bult 16 years ago and has done it's share of grunting and still doing it's thing without using all that silly math stuff.
http://s1298.photobucket.com/user/cy...0Power%20Press
https://vimeo.com/manage/351504961/general
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Yep, that there fancy engineering math is used in a whole bunch of places.
They used it plenty in NY City designing super buildings
http://www.slate.com/blogs/the_eye/2...kyscraper.html
I bet Oscar can even demonstrate how a bunch of professors and a gaggle of lawyers at Florida International used it to design and "build" a bridge off site, sit it onto Marmot carriers, and park it right over top of a 6 lane road. It worked too, well nobody poked the button for how long will this idea fly, but they did get the bridge into place.
Pretty dang amazing what some people with paper from diploma mills like the one Jack Welch bought into can make work on a screen.
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Originally posted by tackit View Post
Oscar can you give an example of where the above mathematics are used? The reason I ask is, I have built so many mechanical things over the years that never required such mathematics, are the above mathematics used for building rockets meant to go into outer space, and for building such things as the common dog house?
The Lagrangian is "found" everywhere, from an apple falling from a tree (a geodesic trajectory from the viewpoint of Einstein's General Theory of Relativity  aka: gravitation), all the way to the Standard Model that unites all known physics in one equationofeverything (most of the "forces" of nature). It can be described as a minimizing action, since the universe tends to have/seek minimization in almost all facets of itself. If we want to know the that minimization "path" (to describe the evolution of a system involving kinetic and potential energies) the Lagrangian maths allow for a way to setup such problems.
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Originally posted by Aeronca41 View PostI love this forum. Where else, in a single thread, can you see discussion of what sizes of pipe/tubing/conduit will slide together, coupled with talk of tensor calculus and LaGrangian mechanics?
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I love this forum. Where else, in a single thread, can you see discussion of what sizes of pipe/tubing/conduit will slide together, coupled with talk of tensor calculus and LaGrangian mechanics?
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Originally posted by OscarJr View PostGood page. I like the engineering Mathematics section, but it's missing the Tensor Calculus and Lagrangian Mechanics sections
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Good page. I like the engineering Mathematics section, but it's missing the Tensor Calculus and Lagrangian Mechanics sections
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Originally posted by Franz© View PostAhhhh Taxkit, you got a problem with that telescopic fit as I recall.
1.5 rigid conduit will fit into 2" conduit nicely, and 2 will fit into 2.5.
Thinwall don't interface with nuttin unless you make collars.
https://www.lincolnelectric.com/enu...ncolnElectric)
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Originally posted by tackit View PostI just had to find the inside diameter of two inch pipe and went to the website I use for such things. . You may have a better one. It's got airplane engineering information so I though Aeronica might find it interesting.
https://www.engineersedge.com/Design_Data.shtml..
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Ahhhh Taxkit, you got a problem with that telescopic fit as I recall.
1.5 rigid conduit will fit into 2" conduit nicely, and 2 will fit into 2.5.
Thinwall don't interface with nuttin unless you make collars.
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I need to slip a length of 2" EMT into a piece of 2" schedule 40 and weld it for a cell phone antenna mast. I use a 551L mobile device to get fast internet and it's only showing two bars out of four at times. The tower I'm guessing is about three miles away as the crow flies. The antenna adds 10 Db to my signal, I'm hoping to see a big improvement. ..
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