For starters, I’m an electrician in the field.
That being said, we almost exclusively use these washers even in high vibration environments. I have personally chosen to go with nylox nuts but the question is:
Do these work? How well? Is the rumor from NASA true? Should I even bother using them or find a better functional alternative or are they actually useful?

Dont remember statics, dynamics, mechanics, thermo, heat transfer or any of the hard classes.

So I'm a fairly junior ME and I somehow ended up being the one deciding how we handle our CAD overflow.

We're a small company, and our drawing backlog has been rising for months. Management wants me to bring in outside help, and now I'm stuck between two quotes that are nothing alike. 

The offshore rate is about a third of the domestic one. On paper that's an easy yes. But I keep asking myself what the real risk is of sending CAD or engineering work offshore instead of keeping it domestic, once you add in the review and rework. Because a cheap hour isn't cheap if half the drawings come back needing a second pass.

The thing that scares me most isn't the rate. It's all the stuff my senior guys just know from experience.

So I just a few question, though:

• What kind of work is safe to send offshore without maintaining it?
• What should stay domestic no matter what?
• And how do you put a number on the internal coordination cost before you commit, instead of finding out three months in?

I have an upcoming interview for apple's operations reliability intern role. The JD mentions six sigma methodology, distribution analysis, accelerated models and JMP. I could not really find much information online about the interview experience and would really appreciate advice from people who have gone through the process or know about it.

TIA

I’ve been reading about razor slitting in plastic film converting and I’m trying to understand what actually changes as web speed goes up.

From what I found, friction at the blade and web tension both matter, and higher speeds can make vibration more noticeable too. What I’m having trouble understanding is which of these usually becomes the limiting factor first.

Say the cut is clean at a lower speed but starts getting rough or inconsistent as speed increases. How would you tell whether you’re looking at a blade/cutting issue or something on the web handling and tension side?

For engineers who work with high-speed web handling or slitting, what variables would you isolate first?

Hello!

I wanted to know if it was possible to build relevant skills for getting an engineering job without returning to college. I am in a lot of debt from school (roughly 25k), and I don't believe that getting into more debt is going to help my overall situation or even necessarily get me an engineering job.

To be clear I currently have an engineering degree but am working as a technician. I think it is because I am lacking in skills which might set me apart otherwise.

Please advise.

If so , how are your plants coping with sourcing equipment vessels etc.

At Hyundai Motor’s Ulsan plant in Korea, equipment maintenance teams handle industrial robot teaching. I’m curious about how companies like Tesla, Volkswagen, Mercedes-Benz, Toyota, BMW, and General Motors handle this. Please let me know who performs this task at automotive companies in your country.

I got shortlisted for the sqe role in apple . Does anyone have general interview tips or topics to learn for me to ace the interview.

I am expecting them to ask some case studies and resume based questions.They had previously given an assignment with a case study to present which consisted of using nelsons rules and 8 disciplines they will ask questions on my presentation as well

I am trying to find a way to track and locate the source of EMF and Microwave radiation and sound.. I am getting exsposed to in larger amounts microwave radiation from a drone or another device. It causes physical pain and heat when the drone is being used to cast microwave radiation at me.

Is there anyone in this group that could help locating the source and drone location when it’s not listed? It’s an illegal drone and the operator is federally stalking me.

Here in Argentina, the term ‘industrial designer’ is used across virtually all fields – graphic design, engineering, architecture, art and management. You could say there are jobs where you’re a junior engineer or someone working in technical departments, To be honest, I never really found a clear direction because of the breadth of the degree, but over time I began to see how certain projects on the course were introducing me to the basics of mechanical engineering, and gradually taking me further because it complements industrial design so well. I want to know if this is a good decision or if I’m rushing into things.

Which would you guys prefer? What are the pros and cons of each? Long term outlook? Job security, etc.

Hello everybody! Hope you guys are doing well.
I’m a high school senior who’s interested in going into mechanical engineering and maybe specializing in aerospace engineering later on. Over the summer, I learned a lot about CAD, and I’m currently working toward getting my CSWA.

I’m planning on joining a FIRST Robotics team, and I also have a co-op at a design firm, which I’m really excited about. I’m hoping to join larger-scale engineering clubs when I get to university.
My goal in the end is to get a university co-op/internship as early as possible so I can set myself up as well as I can for an engineering career.

Do you guys think getting the CSWA is worth it right now? Honestly, I’m still working on a couple of projects to improve my skills. I’ve built a bionic hand controlled by a servo, for example, and I’m currently working on an RC car. I’ve also been doing the CSWA practice problems, and I’ve managed to work my way through them consistently. I can usually complete the harder-level problems on the SOLIDWORKS CSWA page.

I was wondering if engineers even normally have a CSWA, or if it’s mostly seen as a small or insignificant test. Is it worth paying around $100 to have it on my résumé? Maybe it’s better to wait for university where I heard the test is often free to take.

What do you guys think about the CSWA? Is it worth getting?

Hi everyone,
I'm designing a lifting door mechanism hinged at the top edge that opens up to 90 degrees,
and I could use some guidance on the best way to calculate and size the gas springs for it.
The door has a total mass of 90 kg, and its center of mass is located at a distance as showed in drawing from the pivot hinge.
I’ve attached a diagram showing the general geometry and layout.
I'd really appreciate if you can help ne understand a step-by-step breakdown or advice on how to properly calculate the required gas spring force,
as well as how to determine the optimal mounting points and stroke length to keep the movement smooth throughout the full range of motion.

Thanks in advance for the help!

Saw this today at railway station, this is a support for a escalator staircase, placed slightly below from the centre and behind of the incline section, I'm curious as these are not fixed anchors, how are they even handling such load (in tons), there are total 3 pairs like this, means total 6 bolts. Any civil/structural/mechanical engineer can throw light on these two questions:

1. What type of support is it ?
2. What is the engineering logic behind it ?

This video is a continuation of my post about how an eccentric variator works. As you can see, the rotation is transmitted through a shaft with bearings, without the parts rubbing against each other.

What are some things to model that would look good in an entry levels portfolio?

My school never even told us that we may need a portfolio for some jobs and they never even mentioned a portfolio even once. We also didnt do that much cad modeling during my whole time in college. I plan on putting my Capstone project in it but thats really the only major cad project I have from school. I also will throw in a twisty puzzle design or two I made for fun (they are like rubiks cube but much more complex) but other than thay I have never actually made anything fancy or complex.

I’m considering getting a SolidWorks certification and I’m confused about whether it’s actually worth it.

For those who have done CSWA or CSWP, does having the certification actually help when applying for internships/jobs in mechanical design, CAD, or engineering?

Does it make a noticeable difference on a resume/LinkedIn, or do recruiters generally care more about actual projects and SolidWorks experience?

Also, if I should get one, would you recommend starting with CSWA, or going straight for CSWP if I’m already comfortable with SolidWorks?

Would appreciate hearing from people who have actually taken these certifications and whether they helped you professionally.

Hi, I am part of a high school team interested in developing a hosted payload to ride on a host satellite around early 2028.

An obvious obstacle here would be the cost of this project.

We are fortunate enough that our families can pay for the majority of the costs involved in this project.

However, to lower some of the prices involved here, we plan to seek relatively smaller funds such as educational discounts from host and testing facilities, funds from companies with educational funding sectors, state space grant consortium funds, etc.

Correct me if I'm wrong, but I believe this can cover the vast majority of the expenses that come before the giant final payment when the hosted payload is already ready for space, which is the payment to the host to get the slot on the host spacecraft.

However, we are still aiming to raise around $20,000-30,000 from commercial companies. This would be through having a mission that produces data beneficial to them.

Am I right that I should be asking companies directly what benefits them rather than only basing assumptions off of Google searches of what is useful in the spaceflight industry?

Also, what types of companies should we be reaching out to about this? In terms of company maturity, but also any other relevant factors.

Would appreciate any insights, thanks!

So I have about 5 months till I start my mechanical engineering degree, does anyone recommend anything for me to learn before starting to maybe have a head start or make things easier?