I remember reading a book in University about catastrophic engineering failures that really drove the point home on how many safety regulations were developed as well as safety codes due to tragedy. It definitely changed my perspective when considering issues.
ETA: This was the book: To Engineer Is Human: The Role of Failure in Successful Design by Henry Petroski.
The Mis-Education of Mathematics Teachers made a huge impression on me, in particular its emphasis on content knowledge and the fundamental principles of mathematics. More recently, the following comment by Ian Stewart has persuaded me to put more emphasis on the visual aspects of the subjects I teach:
> One of the saddest developments in school mathematics has been the downgrading of the visual for the formal. I'm not lamenting the loss of traditional Euclidean geometry, despite its virtues, because it too emphasised stilted formalities. But to replace our rich visual tradition by silly games with 2x2 matrices has always seemed to me to be the height of folly. It is therefore a special pleasure to see Tristan Needham's Visual Complex Analysis with its elegantly illustrated visual approach. Yes, he has 2x2 matrices―but his are interesting. (Ian Stewart, New Scientist, 11 October 1997) (source)
https://www.amazon.com/Shigleys-Mechanical-Engineering-Design-McGraw-Hill/dp/0073398209
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As someone who graduated last year and is the design realm as well, this has been the best book. It breaks down the design process and much of the math behind it. It breaks down the math to an understandable level and does a great job explaining the theory . I am sure others will recommend other books, and don't be afraid to look into the books others offer.
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I can also recommend if your local community college has an intro course taking the first one or two of those. That may help guide you to other books that focus more on terminology and theory.
An excellent all around engineering design resource is the Shirley's Mechanical Engineering Design textbook I've included the Amazon link below.
It doesn't just have regular gears but other mechanisms as well. It's a wealth of knowledge and I keep it on my work desk as a reference all the time!
https://www.amazon.ca/Shigleys-Mechanical-Engineering-Richard-Budynas/dp/0073398209
Everyone who wants to know EXACTLY how and why this works needs to find a copy of Watchmaking by George Daniels, amazon.
This is THE book on watchmaking, the guy who wrote it invented the first new escapement in 100 years. The book is worth the read even if you will never cut a gear in your life, it's a lifetime of work distilled to 300 pages.
I do not remember the exact video you are referring too, but I believe that I have heard him mention Machinery's Handbook once or twice. I always keep a copy on hand.
Machinery's Handbook on Amazon
While you are at it, I would also recommend picking up a copy of Pocket Ref. Tons of great information in there as well.
https://www.amazon.com/Audel-Millwrights-Mechanics-Guide-Thomas/dp/0764541714
This is a good book. The uglys electrical is good. For YouTube “ave” or “this old tony.” He’s more of a machinist though. For ave look at his older stuff. He takes apart valves and stuff. Lots of good welding videos out there. “The engineering mindset” is a great Chanel for electrical work.
I'm pretty sure the Handbook of Model Rocketry (made by NAR) is pretty good; I have an copy which I've looked at a little bit and it seems pretty thorough in covering the subject. It looks like there's also a kindle version, here's the amazon link: https://www.amazon.com/Handbook-Model-Rocketry-7th-Official/dp/0471472425
> Σαν ανθρωπότητα, κατασκευάζουμε διαφόρων μεγεθών πράγματα εδώ και κυριολεκτικά χιλιετίες. Όλη αυτή η γνώση μας έχει δώσει την ικανότητα να μπορούμε να κάνουμε εκτιμήσεις για το πόσος χρόνος θα χρειαστεί μέχρι την ολοκλήρωση ενός έργου, ακόμα κι αν δεν έχει γίνει κάτι παρόμοιο στο παρελθόν.
Πολύ σωστά. Αλλά όχι σε όλους τους τομείς της μηχανικής. Στις πιο, ας τις πούμε "παραδοσιακές" περιοχές της μηχανικής, ναι έχει συσσωρευτεί μία γνώση ανα τους αιώνες η οποία βέβαια έχει τυποποιηθεί και βελτιώνει κατά πολύ την κατάσταση της εκτίμησης αλλά αυτό που συμβαίνει είναι να μαθαίνεις από τα σφάλματα, όπως αναφέρει και ο Petroski στο υπέροχο βιβλίο του.
Όμως, στη μηχανική λογισμικού π.χ. (σχεδίαση και υλοποίηση) ακόμη και σήμερα οι εκτιμήσεις πέφτουν πολύ έξω στις περισσότερες περιπτώσεις, σε σημείο να υπάρχει ακόμη και σήμερα αυτό που στα τέλη του 1960 ονομάστηκε software crisis.
IPT's Rotating Equipment training manual
Audels Millwrights and Mechanics manual
These will give you all the info for the mechanical aspects. Might want to check out /r/millwrights as well. I'm not sure what the testing is like, however the guys over there were sharing books that were specific to actual pre-apprenticeship tests. Math is not listed as a topic, however I'd definitely spend time brushing up on that.
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I saw the job posting a couple weeks ago, do you know how many apprentices they are taking?
Mechanisms and linkages are complicated. To design them from scratch and understand them, you need to be able to do in-depth analyses and calculations. One of the most basic things to understand is how to use the "Chebychev–Grübler–Kutzbach criterion" or "Gruebler's Equation" to analyze the degrees of freedom of a linkage. I believe the mechanism in that video is a 6 bar linkage. Using Gruebler's equation, we can see that with 6 links, and 7 pins, we have 1 DOF to control the mechanism: 3*(6-1)-2*7-0=1
The structured roles and guidelines are the in-depth analyses that you want to avoid. You might be able to start learning from something like "Mechanisms and Mechanical Devices Sourcebook" by Neil Sclater
Congratulations! You're welcome and there's a ton of information out there but if you like books I would pick up any one of the all encompassing diy books. https://www.amazon.com/dp/158011783X/ref=cm_sw_r_cp_apa_fabc_ZfHaGb9H4KAWW
Remember, it's good to have around because it's not like you can use the internet when the power's out. All the best
You'll need to read up on o-ring design. There are pretty well defined tolerances for the groove profile depending on the o-ring you want to use. I believe the IP ratings are strictly tests which must be passed to ensure water-tightness. Haven't looked at IP ratings since 2015, but I don't think there's much in the way of design criteria in those standards.
I've seen where the grooves are off maybe .006" and not hold pressure. I'd recommend having a copy of the Machinery's Handbook, but there are probably some good resources to describe o-ring design online as well.
This is a good place to start:
https://www.amazon.com/Machinerys-Handbook-29th-Erik-Oberg/dp/083112900X
Audels is more of an all around reference book for on the job stuff. 1200 pages of everything you can think of for millwrights. amazon link
But it is available on Zlibrary along with many other Audel trade books.
Great first book, also make mag has a wonderful starter book.
I bought this one
A few weeks ago. It's a classic. Very technical oriented.
oh and george daniels book watchmaking
reformatting because this is the answer...
Mechanisms and Mechanical Devices Sourcebook by Neil Schlater
Amazon link or a PDF
i bought a small kit and a few individual tools to supplement it just off amazon, but i already need/want a few nicer screwdrivers and a sharpening stone as well as one or two more tweezers. (brass and wood tipped) i pucked up some hand removal and hand setting tools, plus dial protectors but you can use diy solutions for those. oils and oilers and a cup set are next for me. i mostly started by doing quartz battery changes and bracelet sizing/strap swaps so i could eventually get good enough to repair my vostok, but now im completely committed to becoming a watchmaker lol
This book should be mandatory reading for all engineers. Okay fine we can leave the software guys out this is just recommended reading for them.
It's actually called the "Machinery's Handbook" also referred to as the bible ;) newer revisions will obviously have more upto date information, but nothing is wrong with buying a older rev used for a bit cheaper. It will still have a ton of useful information. https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.amazon.ca/Machinerys-Handbook-Toolbox-Erik-Oberg/dp/0831130911&ved=2ahUKEwibpu_aoIb5AhVklmoFHRQiCTIQFnoECAYQAQ&usg=AOvVaw2kHVrGDgR45QQRCGTuQbIZ
I'm engineering, I greatly enjoyed To Engineer Is Human. I also found A Brief History of Though to be very eye opening for general thinking and philosophy.
Visual Complex Analysis - Tristan Needham
The first chapter of that book hugely helped me understand ‘what’ complex numbers are / why they are so useful and ubiquitous.
(TLDR: complex numbers represent the marriage of an infinite line and a self connected line, magnitude and rotation — the “real” and “imaginary” parts are just their projections into a double infinite line space [typical plane] — the “im” & “re” parts we normally work with are an awkward, but often needed, perspective on a very “natural”/simple construction)
I strongly support purchasing books to support their creation if at all reasonably possible, but here’s a pdf in the potential interim:
<strong>VCA, pdf</strong>.
Read the first chapter. And jump around and get a sense of some of the subject.
I've been looking for how a house works type of resource for such a long time!
This book is incredible. Great pictures, and walkthroughs. https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.amazon.com/Ultimate-Guide-Repair-Improvement-Updated/dp/158011783X&ved=2ahUKEwi-4JT81I_2AhVhk2oFHezmCiIQFnoECAUQAQ&usg=AOvVaw1gvs87w0ROee6q_q1-tECf
Also any book from bigger pockets (if you are on the investing side) is great.
I'm not an electrician, I just follow this sub to learn. I just wanted to chime in because I respect your effort to give kids resources to learn about trades. r/millwrights is another trade sub you could post in. I've found that a lot of people, especially kids don't even know that the millwright trade exists! This guide has a ton of technical information for the millwright and industrial mechanic field- Audel Millwrights and Mechanics Guide https://www.amazon.com/dp/0764541714/ref=cm_sw_r_awdo_navT_g_CYD31HZZK9HJ3CVTKC9T
It’s also a little off since complex (and imaginary) numbers can be described using real numbers…. So… theories based “only” on real numbers would work fine for whatever the others explain.
It’s really a pity. I don’t think “imaginary/complex” numbers need to be obscure to no experts.
Just explain them as ‘rotating numbers’ or the like and suddenly you’ve accurately shared the gist of the idea.
Full disclosure: I don’t think I “got” complex numbers until after I read the first chapter of Needham’s Visual Complex Analysis. [Though with the benefit of also having seen complex numbers from a couple other really useful perspectives as well.] So I can only partially rag on a random journalist given that even in science engineering meeting I think the general spirit of the numbers is usually poorly explained.