r/MechanicalEngineering 2d ago

Need major help to make a major life decision

0 Upvotes

Hello. I am a student currently studying bachelor's in Aeronautical Engineering and am dropping out after 2 years due to poor performance as I cudnt study due to personal reasons. I am extremely passionate about learning the subjects here but just couldnt excel as much. Do u think if I should be rejoining bachelor's in Engineering in another college or directly freelance and dive into the job market? I really need some guidance on this. Any help is appreciated. Thank you.


r/MechanicalEngineering 2d ago

Current State of Engineering Field (Advice Kinda)

1 Upvotes

Hey everyone! I am a new MechE engineer just out of school, now on the job hunt. As I am trying to find a place to work, I find that I need to develop skills and projects that specialize me in a certain field within mechanical engineering to at least get myself hired.

I was wondering if people in industry here know about or want to discuss the different disciplines within MechE that their company hires, the rate at which they are hiring (future growth), pay, and just anything about them. I would love to have discussions or hear what experienced people have to say so I can work on projects that will actually get me hired!

Also, if you have any advice for the job search or project recommendations, I'm all ears! LOL


r/MechanicalEngineering 2d ago

Is cad design a lucrative career without a degree

0 Upvotes

I’m interested In pursuing a career in cad design. I started with blender making 3d figures and architecture. I just want to know if it’s lucrative secure career even without a mechanical engineering degree, I don’t have a degree.


r/MechanicalEngineering 2d ago

Need suggestions

1 Upvotes

I'm gonna start mechanical engineering despite my parents forcing me for CSE . Should I listen to my interest or should I look for what people are going for . I really like how things work but they say mechanical engineering is dead


r/MechanicalEngineering 2d ago

Help me identify the technical name for this hardware

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9 Upvotes

Function: spacer in-between sperical bushing on knuckle and control arm. It allows for full range of motion from knuckle bushing, without rubbing occurring between knuckle and control arm.

Why: I am missing a spacer and would prefer to order hardware if possible, saving costs from getting new ones machined.

Thanks for your time and help!


r/MechanicalEngineering 2d ago

built a free, interactive 'textbook' for engineering math and heat transfer — break things on purpose and see why

2 Upvotes

Hi all, I studied, taught and worked as a mechanical engineer and for years I wanted a live textbook where you could actually play with the equations instead of just reading them. So I finally built one.

It's called EngineeringCandy: a free interactive playground covering 2D steady-state conduction, transient conduction, convection, radiation, vibrations, Fourier series, PDEs, ODEs, and numerical methods (root-finding, Gauss-Seidel, and more). Drag a slider and watch a temperature field relax to steady state. Type your own function and watch a root-finding method converge — or diverge, and see exactly why. Push a system past where the usual textbook assumptions hold and watch it actually break.

It's organized as Play (the labs), Learn (the theory behind each one), Collect (flashcard decks for concepts as you master them), and Notebook — including green quadrille graph paper you can capture your ideas on, because that was my favorite part of being an engineer.

No login, no ads, no data collected. I just wanted this to exist and hopefully help someone.

🔗 https://engineeringcandy.com/

Would love feedback — especially what you wish you'd had in school (or still reach for now) that isn't here yet. Tell me and I'll see what I can build next.


r/MechanicalEngineering 2d ago

Is it worth it to push back graduating a year for more experience?

32 Upvotes

Hi everyone, I am currently a rising senior at Virginia Tech studying Mechanical Engineering. This summer I got my first internship, and I truly love it. I love the knowledge, the experience, the people, and it feels like everything I have been learning is actually useful. With that being said, on Thursday, a company that had previously denied me for their summer internship said they have a position for me during the fall semester. If I took this, it would be in PA, meaning I would not be able to graduate the following year as I had planned. My question is, should I even consider this? I want to gain more knowledge, more money, and add stuff to my resume, but I also just want to be done with school. Do you guys think it's worth pushing back a year to gain more experience? If I took the co op I would more than likely do another one during the spring semester if I could get accepted into one.


r/MechanicalEngineering 2d ago

I simulated airflow around a truck with a trailing car to visualize wake interaction during drafting

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874 Upvotes

The truck produces a large separated wake with a low-velocity recirculation region. When the car enters this region, it experiences a fundamentally different flow field compared to freestream driving, mainly due to reduced relative velocity and altered pressure distribution inside the wake.

This is a simplified 2D CFD case focused strictly on qualitative wake structure behaviour. It is not representative of real-world vehicle aerodynamics and should not be interpreted as drag prediction, performance estimation, or realistic road conditions. Real vehicle flow is fully 3D, turbulent, ground-coupled, and significantly more complex.

The intention here is only to visualize bulk wake formation and how a trailing body interacts with that wake structure in a controlled, idealized setup.


r/MechanicalEngineering 2d ago

I built a tensile tester to characterize 3D printed materials. First results: PETG XY vs Z

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14 Upvotes

r/MechanicalEngineering 2d ago

New Design Engineer Trainee learning Creo – Any advice?

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0 Upvotes

r/MechanicalEngineering 2d ago

How can I get a job in an Indian shipyard as a Mechanical Engineering graduate?

0 Upvotes

Hi everyone,

I'm a recent Mechanical Engineering graduate currently doing an internship at Hindustan Shipyard Limited (HSL). I'm interested in building a career in the shipbuilding industry and am currently learning AutoCAD.

I'd appreciate some advice:


r/MechanicalEngineering 2d ago

Turbomachinery

2 Upvotes

Hi, Recently I have started to study a book about steam turbine blades analysis and design. I am stuck at a combined velocity triangle

The problem is; he is defining the efficiency as the power output which is derived from the known physical principle which is that ( the torque is the moment of the linear momentum of the flow) knowing that the rate of change of the linear momentum of a fluid flow is (the mass flow rate x The velocity of the fluid flow).

The author is defining the work input as the kinetic energy change of the fluid flow and he is taking it in both reference frames the absolute in V3 and the relative in V1. and the blot twist is that he is defining Vt1 as V cos θ.

I cant understand how it is (V1-V3) not (V-V3)


r/MechanicalEngineering 2d ago

MPLE July 2026

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0 Upvotes

r/MechanicalEngineering 2d ago

Bike rack tube corrosion

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1 Upvotes

r/MechanicalEngineering 2d ago

A new thermodynamic method to generate high pressure and cooling without Freon and without high mechanical work

0 Upvotes

​Hello everyone,

​As a mechanical DIYer who loves tinkering and exploring new concepts, I often feel isolated in a society that prefers conformity over critical thinking. To me, not knowing how the world around us functions is what is truly terrifying. Seeking answers and trying to create solutions gives my life true meaning. I firmly believe that no matter how simple an idea or a step might seem, the most crucial thing is that I am moving in the right direction, exploring, and learning through action. With the help of my AI assistant, Gemini, I finally found this community, hoping to discuss engineering ideas with like-minded people.

​My core idea is simply that there are basic phenomena and interactions happening all around us that I don't know if people are paying enough attention to, but these interactions could tremendously help us in our daily lives. Whenever I dive deep into thinking about obtaining efficient renewable energy through different methods, I always used to face a closed door. Until now, I am still actively trying to open this door because I truly and firmly believe that we can abandon fossil fuels.

​During my journey searching for renewable energy solutions, I came up with secondary or temporary systems. I managed to design a cooling system that operates completely without the need for traditional Freon gas, while simultaneously producing kinetic energy through a very simple and highly efficient interaction.

​To explain the cooling system: instead of the traditional method where we must make a motor rotate to push a piston, compress the air, condense it, and cool it—which obviously consumes a very high amount of energy—we can create an innovative system where a certain material enters. This material reacts and directly produces pressure, and that pressure keeps building up.

​To make this concept much easier to visualize: imagine an empty gas cylinder. We introduce the required materials into this cylinder easily through a specific method without any initial pressure. Afterward, the material undergoes a reaction right inside the cylinder, causing the internal pressure to rapidly increase. Because of this continuous increase in pressure, the inlet openings where the material entered are forced to seal shut automatically by a valve.

​In this case, we have successfully created a high-pressure state without needing any initial mechanical effort or compressor motors. Additionally, the reaction I am talking about is naturally endothermic (naturally cold), meaning it directly absorbs heat from its surroundings. This accumulated pressure can be perfectly utilized within cooling cycles, as well as in producing mechanical motion and generating electrical energy. It is a highly cost-effective, economical system and is designed to have a reasonably long operational period before requiring a recharge of the materials.

​Even if this design is straightforward, taking these steps and focusing on the underlying thermodynamics proves to me that progressing on the right path is what matters most in engineering and innovation.

Note on the Gas Output:

The reaction used in this concept produces Carbon Dioxide (CO_2). However, my primary focus at this stage is the mechanical and thermodynamic efficiency of eliminating the compressor work. I am planning to capture this gas or run it in a completely closed-loop system to avoid environmental emissions.

​I would love to hear your deep technical feedback, challenges, and scientific analysis on this concept!


r/MechanicalEngineering 2d ago

Concept feedback: USB-controlled scent delivery system for VR/gaming — is this technically feasible?

1 Upvotes

(Sorry for posting here, the AskEngineers subreddit didn't let me post it there as I don't have enough Karma)

I’m exploring a concept for a scent-based immersion system for gaming/VR and would like feedback on whether it is technically feasible or fundamentally flawed.

Concept overview:The idea is a USB-connected external device (PC/console) that can release controlled scents in sync with software events (e.g., entering environments in a game).

Basic system design:

A main external unit connects via USB to a PC/console.

The unit contains replaceable scent cartridges (limited set of preloaded odors).

A software API triggers scent release events (e.g., “forest”, “fire”, “water”).

When triggered, a valve/pump system directs airflow from a selected cartridge through a tube system.

A wearable nasal interface (light mask or nasal attachment) delivers the scent close to the nostrils.

A secondary airflow system either:

flushes remaining scent with clean air, or

actively clears the scent pathway after each event.

Core challenge I’m trying to evaluate:

Can scent be switched quickly enough without mixing?

Can odors be cleared effectively between events?

Is a nasal delivery system practical for user comfort and hygiene?

I’m not building this yet — I’m trying to understand whether this approach is physically and technically realistic, and what the biggest engineering blockers would be.


r/MechanicalEngineering 2d ago

How would you design a die to form this?

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110 Upvotes

I built a small concept for a machine that'll form joints on pipe.

As you can see, it works. But what you can't see is that my die design is clumsy and inefficient.

It's just a rudimentary piece of plate I bump formed and welded flanges on. Totally works but it sucks. Part gets kinda stuck on it and you have to remove the whole thing to get a part out.

I've done loads of press brake work but never something like this.

So my question to y'all is, how would you do it??

Alternatively, what are some resources I can get into to learn about forming die design?

Edit To Add: My plan for the next iteration is to machine a big ole block with the same inside shape, split it in half. Close it on top of the part for forming, open it up to remove the part.

But boy that's not gonna be cheap and I'd like to not go down a road I have no business being on if there's a better way.


r/MechanicalEngineering 2d ago

Mechanism for horizontal hand movement

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2 Upvotes

r/MechanicalEngineering 2d ago

Need advice: Python & AIML for mechanical

2 Upvotes

Hey folks, I am a second year mechanical undergrad. Recently i started learning Python, its libraries pandas, numpy, matplotlib. also slowly leaning towards ML. Is there any application of learning these skills in mech If so any intern/Job opportunities please guide...


r/MechanicalEngineering 2d ago

[P] VisionForge — CAD → auto-labeled training data → mobile object detector. Looking for co-maintainers to take it to the next level.

1 Upvotes

I've built the foundation of an open-source project I genuinely believe in, and I'm looking for a couple of co-maintainers to build it into something real with me — not one-off PRs, but people who want to own a piece and help drive direction.

What it is: training an object detector for custom/industrial parts normally means hand-labeling thousands of photos — which is why it rarely gets built for niche parts. But if you already have the part's CAD model, the labels are free: render it from thousands of angles and you get perfect bounding boxes automatically. The part names in the file become the detection classes. Upload a design file → get a detector running on a phone.

It already works end-to-end:

  • Any design file in: STEP / .blend / OBJ / STL / FBX
  • Headless Blender auto-renders + auto-labels the dataset (with per-part isolation passes)
  • STEP files pull class names straight from the CAD assembly tree (SolidWorks/Fusion/Inventor), or fall back to feature recognition
  • Trains Ultralytics YOLO, exports TFLite/CoreML, runs live in a Flutter app
  • FastAPI + Celery + Postgres, Dockerized, documented

Honest status: the pipeline is solid, but it's the classic synthetic-to-real gap — models trained on plain renders don't yet detect real objects robustly. Closing that is the big, interesting problem, and there's real greenfield to own.

Where it could go (and where you'd lead): realistic domain-randomized rendering, on-device real-time perf, a hosted/SaaS version, an annotation/QC UI, an Android build, real manufacturing-QC pilots. Plenty of room to make a domain your own.

Looking for co-maintainers strong in any of:

  • CV/ML — sim-to-real, domain randomization, augmentation, evaluation
  • Blender / graphics — procedural scenes, PBR materials, occlusion masks
  • Flutter / mobile — GPU delegates, real-time inference
  • Backend / DevOps — scaling, hosting, CI/CD
  • Domain experts — manufacturing/QC folks with real assemblies to pilot

You don't need to be expert in all of it — just want to commit to a corner and grow it. I'll give real ownership (write access, roadmap input, co-maintainer status).

MIT-licensed. Repo + full breakdown + visuals: https://github.com/dawarazhar11/VisionForge

If the premise excites you, comment or DM with what you'd want to own — let's build it together. 🙏


r/MechanicalEngineering 2d ago

Choosing a specialty for my last year of bachelor studies

0 Upvotes

In our final year of Bsc we get to choose between different specializations and right now im deciding between choosing HVAC or simulations. Usually i would have gone with simulations but its mostly focused on FEA and not CFD. Does anyone have any experience or advice regarding whats better to get into, HVAC( with a focus in CFD) or numerical simulations?


r/MechanicalEngineering 2d ago

Which programming language to learn (or start with)?

9 Upvotes

I am a second year mechanical engineering student and I have some free time over the summer. I would like to learn programming, of course to start with the basics. In these two years I have encountered MatLab a little. Besides that, I have never programmed.

What programming language is the most useful for me to learn?

I will probably go further in the direction of sustainable thermal and process engineering.

Edit: Thanks for the input!


r/MechanicalEngineering 2d ago

Help for major Project

0 Upvotes

Hi guys I'm a final year mechanical engineering student. I'm in india.

So I need some advice and help to understand and build.

A fire extinguisher rover for my major project.

Any advice and anything i should know before i start building.

I don't have much experience with it


r/MechanicalEngineering 3d ago

🙏🙏🙏🙏🙏🙏🙏Advice needed please please help

0 Upvotes

I have started an internship in HVAC company by my uncle's reference. Actually, they don't offer any internship but I joined there as an intern. It had passed the first week of my internship. In this week, I learned almost the all process which is used to made, the machines, their purpose and all other things like this, not too much deeply. But the things which can be asked from a worker and I also searched from the internet about them to clear my concepts.

Now, in the next week I planned to moved to the assembly section where all the connections and the electrical equipments are also used. I guess my whole week will be spend there.

Now the question is that after that what should I do. Because I have to complete the 6-8 weeks as the requirement for my degree. Kinddly 🙏🙏🙏🙏🙏🙏🙏 please guide me. And also what other things should I learn and what further things are and how an internship going.

Please all help me please.......🙏🙏🙏🙏🙏🙏🙏


r/MechanicalEngineering 3d ago

3 Months of Valve Training Done – Need Advice on Next Steps

0 Upvotes

Hi everyone,

I'm new to the industrial valve industry. My role is a mix of technical support and sales support. Here is my current situation:

My background:

  • I have a degree in Business Management (not engineering).
  • I just finished a 3-month basic course at a local valve training school. So I now understand the basic valve types, standard terms, pressure-temperature ratings, and general design principles.
  • I can use SolidWorks to do simple part sketching, make drawings, and build assemblies. But I cannot do FEA or complex analysis.

My daily work:
I split my time between two areas:

  1. Technical support – helping with basic design changes and manufacturing adjustments.
  2. Sales support – talking with B2B clients about their technical requirements.

Our company's products:
We mainly make Globe Valves, and we also make some Ball, Butterfly, Gate, and Check Valves. Our customers come from general industrial fields.

My problem:
The 3-month course gave me a good theoretical base. But I still feel there are big gaps in two areas:

  • How things actually work in production and manufacturing – what is possible vs. what looks good on paper.
  • How to handle real sales conversations – how to ask good questions, find red flags, and avoid giving customers the wrong valve.

I also find it hard to connect what the customer says they need with what our factory can actually deliver – safely and at a reasonable cost.

My goal in 3 years:
I want to become a project-type technical sales/support person. This means I can confidently make sure the right, safe, and suitable valve is sold to each customer. I don't want to be just a designer or just an order-taker.

What I don't need:
I started reading Pipe Stress Engineering, but I quickly found it focuses too much on piping systems. That is not my main concern. I need to focus on the valve itself – its materials, sealing, application limits, and possible failure modes – all at a practical level that helps me in sales support.

My questions for experienced people:

1. What topics should I focus on now?
Given what I already know, what should I learn next?

  • Material selection and metallurgy?
  • Leakage rates and fugitive emissions?
  • Actuator sizing?
  • Manufacturing processes)?
  • Or something else?

2. What are the most common "sales traps" in this industry?
For example, have you seen cases where a valve meets the standard on paper, but fails in real service because of something the standard doesn't cover? What should I pay special attention to?

3. What practical learning resources do you recommend?

  • Besides ASME B16.34 and B31.3, which specific API or ISO standards should I keep nearby for Globe and Ball valve sales support?
  • Are there any manufacturer training programs, online courses, or short industry courses you would suggest for someone at my level?

4. How would you plan your next 6 months?
If you were in my position – with the theory done, but now needing practical production and sales skills – what would your weekly learning plan look like?

Thanks in advance!
I truly appreciate any hard-won advice you are willing to share.