Thread 16754961

Can any anons give me reading recommendations for core math skills I should have as a machinist? I'm starting an introductory class but I want to make sure I'm not wasting my time reviewing irrelevant shit. I'm also slow and retarded so this head start means a lot.

>>16754961 (OP)
True, false. The top is true, the bottom is some sort of cope, like either you imagine where you live is better or worse than where you live or you imagine where someone else lives is better or worse than where you live.

>>16754966
Or You Have Transcendent Economies
Imagine Becoming E.D. just to Get a Part-time Job after thinking You can Rule da World

>>16755003
Kids should be indoctrinated to believe that ruling over other people is gross and bad, not that it's good.

>>16755005
Demotopia, Meritopia, Techtopia
(Fake universe? Just went with ocracy?)

>>16755008
The worst hoax ever fed to the American public is that Obama was anything other than a Barbie doll you wanted to collect. Same thing with John McCain. Both were dolls with no human value, as they were presented at the time.

>>16755011
Just Posting Positronic Chi Energy and Quantum Mind
Can You Reply With One?
Quantum Consciousness Enhancer Doesn't Have a Wikipedia Page Yet nor a OpenSourceProject Range. ?
Is that Suspicious?
Brighter Tomorrows!

>>16755022
German is a cool language that did that, upper casing words.

>>16755030
If it's everungiving siloed (like siloed aid) How is it upper?
What's To Be Done
And what's siloed (other following words to siloed)
I wonder about the HyperAdvanced Descriptors Explanatory Compute, some not yet Logically falsified, if need be (instead of needless falsification)
Germany did?

Are you freakin 2 bit admin that get shit synchronicities
Go after siloed aid?
(Instead of male cackle)

>>16754961 (OP)
I'm curious about this too. you should probably ask in /diy/ though, /sci/ is schizo central

>>16755295
Shouldn't have posted a bait image
>>16754961 (OP)
>mechanist
Just high school math I guess?

>>16754961 (OP)
At least 40% of the US economy is directly industrial.
18% is directly manufacturing
4% is construction
4% is production of crops and minerals/oil (what you call real nigga economics)
14% is general transport and logistics, i.e the job of physically moving, storing and selling all the production because factories and mines dont work without trucks taking things in and out
Some other sectors also make things. For instance restaurants absolutely make things, but i dont want to include them in the classification. Strictly industrial is 40% and no, it cant be 100% manufacturing because manufacturing needs other sectors to exist, such as trucks, mines, stores to sell the manufactured products, etc.

>>16755358
everyone knows that saying 18% of your economy is manufacturing is cope though
what percentage of that is bullshit like some 60k bolts for MIC planes?
and in terms of raw output (not final dollar cost) what percentage of chinas bulk does usa produce? for example, i live in neither usa nor china. if i were to look around my house or anywhere else and count things made in either china or usa what do you think the ratio would be?

>>16755358
>>16755593
shit i forgot the most obvious thing, how much of that manufacturing is actually done in country?
gdp isnt counted correctly, an american company outsourcing manufacturing to china counts towards usa gdp. this fact is easily verified with an easy search so dont ask for a source

>>16755358
Restaurants are services lmao

You will need very little math knowledge as a machinist. A few fractions, some percentages, knowing how many inches are in a foot, feet in a yard, what the area of a circle is, etc.
What you will need much more importantly than that is to follow safety precautions and to have an extremely steady hand. A lathe, a mill, or or a stamping press can easily rip off anything from a few fingers to half your arm. There are many jobs where it's fine to fuck around every once in a while, but machining is not one of them. Quality and safety will be your biggest concerns in your work, so take them seriously.

>>16754961 (OP)
Machinist here. diy used to have a machinist general but now its gone. you want this
-Imperial and metric systems.
-Basic geometry
-Trigonometry
and you won't use it most of the time. Engineers won't trust you and will avoid you touching anything as much as possible.
you should worry about using one of these (pic) and how you will tie the stock to the machine. tieing the stock to the machine will be your main trouble.

>>16754966
You missed the point. financial vs industrial.
top get's you jewed.
bottom get's you jewed but you also get shit done

>>16755593
>what percentage of that is bullshit like some 60k bolts for MIC planes?
Even then it would still be 18%. You can check the statistics yourself.
The general financial sector which is alleged to be 100% of the economy is only 17%, of which only 7% is actually financial (banking and insurance) while 10% is rents.
>>16755593
>if i were to look around my house or anywhere else and count things made in either china or usa what do you think the ratio would be?
The power plants that power your country wherever it is were made in the united states. The oil you use in your car or public transportation was produced with US equipment and US prospection technology. The US likely designed the electronics of your computer, tho not manufactured them
>>16755598
>an american company outsourcing manufacturing to china counts towards usa gdp. this
Of course not retard. Gross domestic product is only in the country, Gross National product is a modified metric that excludes foreign owned and includes national assets abroad.
>>16755610
>Restaurants are services lmao
Pure semantics, i didnt want to include them to avoid the controversy.
Theres other sectors connected to industries like "professional services" which include things like engineering companies that make the designs for manufacturers, manufacturing cant exist without such office jobs, but they are again not manufacturing properly. They still need to exist for manufacturing to exist.

>>16755358
>check job data
>25% is store clerks
>25% is nurses and doctors
>35% is construction
>The rest of all jobs is only 15%
Keep in mind 2/3 of the US population doesnt work

Machining doesn't have much more beyond Trig but I strongly recommend Calculus because you can do mechanical engineering with it. But 99% of the time the math is already figured out for you, and modern DACs remove a lot of the thought process needed to actually set up the cut. But you will probably be working in a shop on ghetto 40s era machines that don't have that. My bridgeport was made in the late 30s and uses more power than my tesla. I bill all this to the customer.

>>16755688
Thanks anon. I'm the actual OP. Just started yesterday and I'm already getting headaches from HYP/OPP/ADJ.

>>16756019
>it would still be 18%.
maybe by raw dollar cost but again not by any "real" measure
the 60k usd bolts you skimmed over. your 18% counts parts so absurdly overvalued that its hard to even take seriously. did you that every single bolt in any one of your military planes costs your taxpayers several thousand dollars each? and i imagine that its not exclusive to bolts
my point is that those same bolts could be made elsewhere by a country with actual competition for a hundreth of the price. probably your manufacturing economy is overvalued by 10x

>10% of the economy is rent
>only 10%
right but do you understand that even 10% is an absurd number?

>power production was made in usa
kek, maybe a few decades ago, boomer or living under a rock? my country is a part of chinas belt and road initive, everything built in the past decade (which is nearly everything) was made with massive support of the chinese government

>oil
not sure, but i ride an electric bus made in china to get to work, i dont own a car

>The US likely designed the electronics
again this is a cope. can you prove this?

>>16755643
Thank you anon I have seen a certain video of a many taking a ride on a lathe. The machines in my class look quite hungry. Any recommendations for a proper sci calculator? Either app or actual physical calculator would be great.

>>16755593
tbf the bolts have to be manually and individually tested to comply with military standards and specially stealth technology but still they should be 400 each not 10k or whatever

>>16756104
You must be living in a serious shithole if everything in your country was made in the last 10 years. What you had nothing 10 years ago? Regardless if your country has gas turbines they were made in the usa. You still use oil indirectly in all the boats and trucks that make your life possible.
And if you dont this only shows you have alternatives to US products, not that the US produces nothing. I know for instance that china has started making gas turbines, this is a recent development and if its true it still doesnt mean the US produces nothing. More than one country can produce the sane thing.
10% of gdp being rents is about 20% of workers income, as workers earn about half of gdp. Its not absurd to spend 20% of your salary on rent.

>>16756062
>I strongly recommend Calculus because you can do mechanical engineering with it.
Don't do this OP, no one is gonna give you anything extra for being smart or knowing calculus and in best case scenario you just get to solve all trouble because "well you know better".
learn calculus because improving yourself is always good tho.
>>16756076
just keep going. if you struggle with a couple of exercises, do 20. once it settles on your mind it's not so hard, difficulty comes from seeing the triangle on the plane, the fucker is hidden. also take this, don't ask, is magic.
>>16756203
you don't need anything beyond a basic scientific calculator for high school. I bought a cheap copy of a casio SVPAM or something like that for 3€ and that's more than enough. big numbers belong to the office.

>>16756763
Thanks anon. I've managed to memorize SOH CAH TOA and apply trig. I've moved into reading blueprints and it's giving me even more anxiety.

>>16758541
reading blueprints is important so take yout time, you just started, you'll get used to it.

Blueprints are stupid, everything should be done with 3D models. The complicated models cant be represented with blueprints anyway unless you do 1000 cuts like an MRI scan

>>16758965
>Blueprints are stupid, everything should be done with 3D models.
A zoomer who can't imagine and rotate an apple on his head typed this shit.

>>16759096
Blueprints cant convey the information in a 3D object unless its simple things like a cube with a hole. This is why for anything serious you have to add a million sections, at that point you might as well just use the 3D computer model

>>16759140
where do you think they make blueprints today?
a 3D model is made on autocas, NX or whatever software, and then they take the blueprints you need to make the part.
a 3D model is useless when you are working on a mill or a lathe.

>>16760213
>a 3D model is made on autocas, NX or whatever software, and then they take the blueprints you need to make the part.
So what? The source material is the 3D model. The blueprints are like a small sample of information that you can put in paper and it only works for simple solids. On the computer you can see the same 3 common views, any projection from any angle, any cut, any measurements of distances and angles absolute and relative. You can zoom in small features.
>3D model is useless in actual work
If the part is made with a CNC machine you will make the program in an external computer and simulate it. You will then do small changes based on the and materials actually available, and then start making defective parts in a soft material (likely aluminium) to work out the kinks, then change to the relevant material, change the program a bit to see that it works and then repeat it 500 times.
On a manual machine theres still a program of sorts, a sequence of operations you have to follow though its not written as software. You can do all this with a computer, the planning of operations.
Paper is useful if you want something portable that you can take with you to the machine but might as easily get a tablet.
When the part is simple like a cube with a hole, or 2 holes, it makes no difference.
Machinist hold to blueprints only because its tradition, like medical doctors that force interns to do 36 hour shifts only because they were forced to do so.

>>16760253
>I haven't seen a mill in my life, a touching blogpost by anon

>>16760694
I happen to work every day with lathes and mills. Blueprints are dumb holdovers that are kept for tradition's sake.