putting a header for a window

pyotr filipivich · 2020-07-02T04:13:42+00:00

Greetings Seeking the collective wisdom of the Internet on a remodeling project. The Project of the summer is to put a window in the shed. (I should have done this two years ago when I was rebuilding said shed. "If I'd known then what I know now, I'd have done a whole lot of changes from what I did.) I have two sliding window panels (the remains of an 8 foot wide five foot high unit. sort of like this ) Anyway, the issue is The Header. The thing which goes at the top of the wall and transfers the load "elsewhere" First question: does it need to be a 4 x 8, or can two 2x8s be nailed together and made to work? Secondly the wall I want to put the window into is 'load bearing', specifically, those studs have the joists supporting the loft attached. Unlike the north or south wall which are just holding themselves up. Originally I was willing to cut the studs under the joists, and install the header under the joist. But .. that puts the bottom of the window below the (eventual) bench top. (If my calculations are correct, the bottom of the window is at 21 inches height, and the bench top is at 30 inches. That will provide ventilation under the bench.) If I cut the joists loose (propping them up _before_ I start sawing) I could raise everything up by 1 Joist height (six inches, if memory serves). This still leaves the bottom of my windows below the bench top, but ... The alternative is to go buy a shorter window, but I don't want to waste money of things like that when I need to get some tools.

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pyotr filipivich 6 years ago

So did I, so do I "so let it be." But maybe there was something about erasing ink that wasn't covered in my class. I dunno.

Nothing like noticing that this work order is Rev D, the next work order in the queue is Rev C, and the actual program in the machine is for Rev E? "Um, Boss, is this going to be a problem?" Or the time that I saw that this line of holes is missing one of the location dimensions. "Anywhere on the part , just 2.375 inches from the other one."

Or the time, first day on the job, guy I'm working with see the part is out of straightness. Goes to get the gizmo. I'm waiting, reading the work order. He gets back and I ask "Uh, it says here, that after this procedure, not to do whatever it is you have in mind. Is that going to be a problem?"

Getting cross trained CAD after being a machinist was fun. I think.

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krw 6 years ago

Exactly. That's why I don't live in a fascist state, like Illinois, anymore.

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krw 6 years ago

And that's relevant how?

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krw 6 years ago

That's nuts. Use the program for what it's designed for. 3D drawing.

So why do you do it?

Different issue. Sketchup would be *perfect* for designing extrusions. Draw the cross section and pull it in the 'Z' direction.

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Markem 6 years ago

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pyotr filipivich 6 years ago

snipped-for-privacy@notreal.com on Wed, 08 Jul 2020 21:52:06 -0400 typed in rec.woodworking the following:

that's what I said. Everything starts on the proverbial cocktail napkin.

It was part of the job. One of the things I have realized over the years: when it is my part / project, the drawings can be as vague as they want, I know what I'm trying to do. But if I want some one else to help, make or inspect the results, then I need complete detailed drawing.

In this case the part I have just run, does not match the specification of the print with the work order. It is way out of specification, and thus "scrap". (As the saying goes "You can't make scrap fast enough to turn a profit.") Because the size specification on the drawing was revised in an ADCN on a separate page, and possibly _that_ was had a follow on ADCN revision of its own. You learn to read work orders, completely. The one which comes to mind is that the original print measured off a beveled edge, however the ADCN showed that it was to be measured off of a squared edge, the difference being greater than the 0.030" tolerance. (Which is better than the parts where the spec is to where the two angles intersect, over in the air past the curve.)

Now, the company has gone to the effort of having several lengths of extrusion delivered, cut to size and delivered to my work station, along with the traveler and the program. After I run the first part and take it in for a first part inspection, how do I shrink the extrusion to fit the PCM of the part? Remember, this is the customer's life sized drawing of how the part is to be, the company has bought the extrusion, and I'm one of a dozen operations on this part. My part of the job went perfect, but the extrusion web was too "tall". When lined up and laid on the PCM, the bottom of the one leg was just a tad above where the top was suppose to be: the web was excessive by the thickness of the leg. Once I pointed that issue to the foreman, I was done. Stop, halt, go no further, make no more parts. "Edinburgh, we have a wee problem". There was a guy who could just change the specification of the part, but that was not me.

tschus pyotr

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pyotr filipivich 6 years ago

snipped-for-privacy@ccanoemail.ca on Thu, 02 Jul 2020 08:01:21 -0400 typed in rec.woodworking the following:

You're welcome B-)

Sorry, it seemed "intuitively obvious" which is another way of saying "I forgot that nobody else can see the picture in my mind which I'm holding up before the monitor."

Or I could do that, too.

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putting a header for a window

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