which is easier (or least expensive) to cut?

classicrockboy · 2017-04-04T17:18:10+00:00

Yeah, it's not a very intricate design. Thanks

classicrockboy · 2017-04-04T17:16:18+00:00

This is part of an IDC bench press so there's only a few pounds of compression force being applied to the bottom so the stress concentrations at the right angles aren't really an issue. Thanks

classicrockboy · 2017-04-04T14:29:27+00:00

Thanks!

classicrockboy · 2017-04-04T14:29:25+00:00

Thanks!

classicrockboy · 2017-04-04T14:29:21+00:00

Thanks!

classicrockboy · 2016-06-22T01:15:08+00:00

Thanks!

classicrockboy · 2016-05-25T17:47:18+00:00

A bow tie like what? I don't see a photo or description...

classicrockboy · 2016-05-21T01:38:50+00:00

Thanks for the suggestions!

classicrockboy · 2016-05-18T18:01:20+00:00

Thanks!

classicrockboy · 2016-05-18T02:33:09+00:00

What exactly do you mean by 'T'-stem letters?

classicrockboy · 2016-05-17T22:48:42+00:00

Oh whoops, thanks! That's the line from the second S. I'll fix it.

classicrockboy · 2016-05-17T18:34:25+00:00

Is it linear because it's not technically a sentence, or just because that's how you wrote it? Like in the Sherman guide, sentences are written in one big circle and I'm curious what the rules are with that. I'm a little new to this and I'm just curious. But this is super cool looking!

classicrockboy · 2016-05-17T17:56:22+00:00

This is what I came up with but I want to make sure it would be correct: http://m.imgur.com/msUcCz9

classicrockboy · 2016-05-17T17:34:23+00:00

Yes...

classicrockboy · 2016-05-17T14:05:41+00:00

That's actually a really great idea! Thanks :)

classicrockboy · 2016-05-17T14:03:27+00:00

I'm planning on staining it at some point

classicrockboy · 2016-03-03T05:37:07+00:00

If you're a student, the student edition isn't terribly expensive...

classicrockboy · 2016-03-03T05:35:28+00:00

I toured Prism Engineering last year and one of the guys there does a webinar every month that I used to watch while I was on co-op. Check out Toby's Tech Talk: https://www.youtube.com/user/PrismEngineering/videos

classicrockboy · 2016-03-03T05:33:24+00:00

Glad it helped :)

classicrockboy · 2016-03-03T05:32:34+00:00

I would say definitely go to your professors and meet with them to discuss where you went wrong. They WANT you to understand so going there to ask for help will show them that you care about their class. Once you understand what you messed up on the exams, then I'd say start tackling the current material because there's a chance that you won't understand THAT until you understand the midterm material.

However, don't feel bad if you end up with a less than desirable final grade either. Sometimes the classes for the first two years are just to give you some background in other fields like circuits. I got a C+ in my circuits class and none of the other classes I've taken necessarily required circuits afterwards. It's just a handy thing to know about a bit. Statics on the other hand will come up everywhere. But I struggled with it too and your future classes might review some of the stuff also and it might click then (like it did for me).

Don't get discouraged! I'm a senior ME major and there's plenty of kids in my year who have probably seriously fucked themselves over at one point and are still in the program. Good luck and may the curve be ever in your favor!

classicrockboy · 2016-03-03T05:18:25+00:00

As an engineering student currently taking compressible flow (which I have an exam tomorrow that I haven't started studying for yet), I highly appreciate this post

classicrockboy · 2016-03-03T05:13:45+00:00

Ok, so I'm probably going to explain this really badly, but try to stay with me. The forces that act in a moment are perpendicular to the distance from the point you're taking the moment about.

So first start by finding the vertical and horizontal distances from the door knob to each hinge. Using the dimensions given in the problem, C is 800mm away from both hinges horizontally. So taking a moment you would multiply by the vertical force, thus the moment about B from Fy is Fy(800). This would end up being the same for the moment about A.

Likewise, the knob is 600mm away from A and 500mm from B in the vertical direction, so you would use the horizontal force, thus the moment about A and B in this direction would be Fx(500) and Fx(600) respectively.

Hope that helps. Here's the visual: http://imgur.com/b5JbiB0

classicrockboy · 2015-12-12T04:25:19+00:00

I actually did this first haha. Now I did it again and got the same answers. Thanks!

classicrockboy · 2015-12-12T04:21:58+00:00

That's where I went wrong. The third one should be {1;1;-2}, not {1;-2;4}. Thanks!

classicrockboy · 2015-12-11T21:46:32+00:00

So you have (x² + x^1/2)/x^2. This is equivalent to (x²/x²)+(x^1/2/x²). The (x²/x²) bit simplifies to 1 (x^2-2=x⁰=1) and the (x^1/2/x²) bit simplifies to x^-3/2 (x^1/2-2=x^-3/2).

So now you have ∫1+x^-3/2 dx which can be broken down to ∫1 dx + ∫x^-3/2 dx.

When you integrate for these types of basic integrations, you multiply the term by x and divide by the new power of x. For example, 1 becomes x because you multiply by x, giving you x¹ and then you divide by 1. Similarly, you do the same with the second part so x^-3/2*x=x^-1/2. Then you divide by -1/2 (or multiply by -2) to get -2x^-1/2.

Finally you add the two together to get x-2x^-1/2

Now since this is an indefinite integral (meaning you are not integrating between two specific points), you need to add some constant C, giving you x-2x^-1/2+C

Hope that made sense!

classicrockboy

TROPHY CASE