r/inventors

▲ 6 r/inventors+1 crossposts

Why I Started The Thoughtful Engineer

Hi everyone,

I'm an engineer, but over the years I've realized something interesting.

Engineering isn't just about machines, formulas, or manufacturing.

It's a way of thinking.

The ability to break down complex problems, think in systems, question assumptions, and build practical solutions isn't useful only at work—it's useful in careers, business, money, leadership, and everyday life.

That's why I started The Thoughtful Engineer.

My goal isn't to become another productivity or motivation creator.

I want to build a place where engineers and curious minds can learn how to think better, solve better, and build better.

Over the coming months, I'll be sharing ideas on:

  • Engineering & manufacturing
  • Career growth
  • Systems thinking
  • Productivity
  • Entrepreneurship
  • Lessons from books and real-world experience

I'd genuinely love your feedback.

Think deeper. Build smarter.

reddit.com
u/Ok_Extent3397 — 2 days ago

I Built a Detonating Bubble Machine, and Now I’m Terrified

TLDR: I’m a hobbyist who built something rad—a precision explosive bubble machine that uses mixed welding gasses (acetylene and oxygen)—and made a video about it for fun: https://youtu.be/bg-uCaPdddI

This is not an informercial, but is a request for help to improve how I’ve documented it, so please find it interesting but come back to tell me how to make my presentation better! High-speed video? Better sound recording? At one point I was hoping to capture the attention of a nearby science celebrity with a studio and professional equipment, but I’m not holding my breath anymore. 

Ask me anything and I’ll answer, or just roast me, but DO NOT ATTEMPT THIS YOURSELF—IT’S VERY HARD TO MAKE SAFE—and absolutely terrifying!

u/yestereon — 2 days ago
▲ 1.3k r/inventors+2 crossposts

Steve Jobs got called out onstage and turned it into a masterclass on why great products start with customer experience, not technology

A guy in the crowd stood up and went straight at Steve Jobs. He basically said it was sad and obvious that Jobs did not know what he was talking about, then asked what he had even been doing for the last 7 years.

Jobs could have snapped back. He could have mocked the question. He could have tried to prove the guy wrong feature by feature.

Instead, he did something much smarter.

He admitted the criticism might be fair. He said there were probably things other products did better than Apple’s products. But then he explained that comparing isolated features is the wrong way to think about building something great.

His point was that a feature only matters if it fits into a bigger product vision. The real question is not, “Can this technology do something cool?” The real question is, “Does this help create an experience customers actually want, understand, and will pay for at scale?”

Then Jobs admitted one of his own biggest mistakes: starting with the technology first, then trying to figure out who would buy it. He said the right approach is the opposite. Start with the customer experience, then work backward to the technology needed to make that experience real.

The laser printer example made the whole point simple. Apple could have talked about all the advanced engineering inside the machine, but customers did not need that pitch. Jobs said the real pitch was basically holding up the printed page and asking, “Do you want this?”

That was the lesson.

Great products are not built by showing off technology. They are built by understanding what people want, making the value obvious, and hiding the complexity behind a simple experience.

u/EntertainerNo8195 — 4 days ago
▲ 17 r/inventors+1 crossposts

Invention: Radiant barrier ventilation prevent ice dam, ventilate roof and reflect radiant heat for homes

Hi everyone,
I invented this product and I do have patent pending but however I am stuck at marketing stage and need help with some ideas how to bring it to people’s home.
What it is: It is made from foam and Mylar( reflect 97% radiant heat)

Where to apply?
Apply between roof rafters under plywood sheathing. Sprayfoam can be apply under and still have airspace for radiant heat and air ventilation from soffit to the ridge vent.
It can be made 24” center or 16” center. Expandable to fit tightly between the rafter without too much effort.
Lightweight and diy install friendly.

Why we need this?
Typical roof for summer is extremely hot and in winter if you dont have cold roof ice dam can occur from the heat leakage melting the snow.
If you have sprayfoam insulation, if any roof leak it’s almost impossible to detect where and you may have to remove either the roof or the spayfoam.

How can this safe the home?
the radiant heat keep enter your home regardless what type of insulation you have. With the mylar ability to reflect all those radiant heat out and the airflow to bring those hear and humidity vent out of your home.
If you have a roof leak, you are most likely to able to detect it by looking at the color from water build up at the soffit.

I have a friend Corbett from Home Performance did a review for me on youtube if anyone interested to see. It is at 2:30 Minute
https://youtu.be/\_TicXBQkH2Q

Sorry for not having an actual video on the product yet. Still in production.

Thank you for reading this Reddit communities.

Sincerely
Huu

u/Choice-Clerk-1228 — 3 days ago

Would anyone buy an Edge AI, car break in deterrent with no paywalled features?

Hi everyone. We are a team of two 15 year olds after we experienced two break ins that ruined our trips.

Im looking for feedback on my idea.

After both me and my co founder experienced a break in, we realized that traditional security is just an illusion. We both had camera footage, we both showed it to the police, and they both dismissed it. We lost our entire trips worth of stuff, ruining our trip.

Thats why we set out to solve this problem. Instead of making another passive recording device, we are making something that prevents it.

- It is Edge AI

- It uses directed voice deterrent

- One tap incident report with chain of custody

- 360 degree interior view

- Multi step threat verification to reduce false positives

- No paywalled features

- P2P mesh network

Currently, I am in the prototyping stage and I’m looking for whether people will buy this.

We are aiming for a selling price between $549 - $749.

Would you buy this and if not, why?

reddit.com
u/Slight_Pin5742 — 4 days ago

Have you ever failed at something you built? What actually happened after?

Not looking for war stories for the sake of it, genuinely curious about the mechanics of how founders find out something isn't working, and what they do with that.

A few specific things I'd love to hear from anyone who's been through it:

  1. When did you actually know it had failed? Was there one moment, or did it take you way longer to admit it than it should have?
  2. Was it a demand problem (nobody wanted it) or a distribution problem (nobody saw it)? How did you tell the difference, if you could?
  3. Did you have people telling you it was a good idea right up until it clearly wasn't? Who were they, friends, early users, yourself?
  4. What's the thing you wish someone had told you earlier, that you had to learn the expensive way instead?
  5. Did you keep any of it? A lesson, a piece of code, a relationship, a smaller idea that came out of the wreck?

No wrong answers here, and brutal honesty is much more useful than the polished version. What actually happened?

reddit.com
u/veffev — 3 days ago

Cooling cat watering bowl

Alright so I was putting some of my ideas into gemini right and I told it to create/draft a blueprint and this is what it showed me could anybody make this or no

u/Astaclover098 — 5 days ago

How do I profit from an invention without running a company?

I have a killer product idea, but I really don’t wanna go the standard company founder/cofounder route. I don’t like dealing with people.

I want to put in the work initially to turn it from a prototype into a product, and then just fuck off and retire on the money. How do I do that?

reddit.com
u/Proof-Bed-6928 — 6 days ago

Everything has been done to bring mathematicians and their games into reality.

I added a mirror instead of a light detector after the shutter line to my setup to test the speed of light unidirectionally and simultaneously verify the symmetry of the speed of light in all directions.

The detector is now at the beginning of the line.

Everything has been done to bring mathematicians and their games into reality.

THE DEVICE

A straight line of optical shutters is placed at equal distances.

A laser on the left shines continuously along the line.

On the right, a controller sends a traveling wave of shutter‑opening signals using light.

The control signal must be light, because only light propagates at speed c.

Any slower signal would break the synchronization and destroy the traveling wave.

The phase of the traveling wave is tuned so that each shutter opens exactly when the forward‑moving laser light reaches it.

This creates an optical green wave: the light passes through the entire line.

On the right end, instead of a detector, there is a mirror that reflects the light back.

OPERATION

Forward

light moves at speed c,

delays between shutters are fixed,

the traveling wave opens shutters at the correct moments,

the light passes through the entire line.

Backward

the mirror reflects the light,

it travels back at the same speed c,

with the same delays,

but the traveling wave was tuned only for forward motion,

backward arrival times do not match the phase,

shutters are closed,

the light does not pass back.

Rotating the entire setup by 180° gives the same result:

forward passes, backward does not.

THE MATHEMATICAL TRICK

Some theorists claim:

You can choose a time‑synchronization convention where

one‑way speed of light forward = c/2,

and backward = infinite.

In that convention, backward light supposedly

arrives instantly, with zero delay.

Therefore, if the shutter line is

momentarily all open at once,

the “infinitely fast” backward light

should pass through completely.

They also claim:

“No experiment can test this, because any one‑way measurement requires two synchronized clocks.”

HOW THE DEVICE CUTS THROUGH THIS

My device:

uses no clocks,

uses no synchronization,

uses no remote observers,

does not depend on coordinate conventions,

operates entirely in one local physical time.

It shows:

backward light travels at the same speed c,

real delays exist,

the traveling wave phase does not match backward motion,

shutters are closed,

backward light does not pass,

no “instantaneous return” occurs,

no “infinite speed” appears.

Even if the entire shutter line is open for a brief moment,

the backward light cannot “appear everywhere at once,”

because it physically moves at speed c,

and the traveling wave has already moved on.

RESULT

The device demonstrates physical reality:

one‑way light speed cannot be skewed,

no “infinite backward speed” exists,

no “instantaneous return” happens,

and this is experimentally testable,

without two clocks and without philosophical tricks.

The mathematical fantasy survives only inside their abstract synchronization convention.

My device operates in real physical time, where light always moves at speed c.

u/Important_Canary_243 — 5 days ago
▲ 2 r/inventors+1 crossposts

Prior Art as Code: How to protect open source innovations without paying anything, blocking patent trolls (A practical guide, grounded by law)

github.com
u/system-ronin — 5 days ago

My invention DuraTherm

So I have been working on my invention since April. The minute testing was done I filed for my pending patent because the results were so amazing.

It started with a random thought on Pykrete, the stuff a lot of people may know of, but no one really considered it practical. Until me.

Turns out it makes a medical pack far superior to anything else on the market it is insane.

Two times the duration, one fifth the size, and when I go to make it - 1/2 the price, of a 1.3lb gel pack. A 110ml unit outlasted a large gel pack.

So I started with one provisional patent, and have since filed a second.

The problem is... It's amazing and it needs a huge launch and I am scared of scaring away investors.

No product in world history had no disadvantages. I can even make a form fitting version by adding a salt water filled bag under the hard HDPE case and not filling it the whole way. I still would be under the absolute minimum of gel packs with that.

I am actually scared, and excited, about having the first ever patent pending protected product with zero downsides and a massive upgrade to existing products. The worry is always the investors. I want to value this at 100 million and then make a big 30 million ask, because that would get me where it should be for a launch. Instead I have made a plan to buy a 5 million business(es) with an SBA loan, value at 20 million prior to the purchase making the total value 25 million, and ask for 5 million.

That 5 million is the bare starting level to me, and the SBA loan of course.

Maybe someone here actually knows what to do, and can offer some sage advice.

u/PHDEinstein007 — 7 days ago

I have an idea and i need a guide

I have an idea for inventing something. But I'm just a student and don't know where to start. If there's someone who can help about it, just tell me and i give you more details about it.

reddit.com
u/Odd777seven — 5 days ago
▲ 4 r/inventors+1 crossposts

This is a place to share what you're working on - not to convince other people to purchase or invest in your project.

Hi everyone!

Over the past several months, I've been building Fluentti, an AI-powered language learning platform designed to help people practice real conversations instead of only memorizing vocabulary.

Some of the things I built include:

• AI conversation practice

• AI Live Tutor

• Personalized learning paths

• A progression system with XP, streaks, quests, achievements, and levels

• Accessibility features like colorblind and dyslexia support

• A customizable AI companion called Blaze

One of the biggest challenges was designing a progression system that rewards learning without encouraging mindless grinding. I ended up building an event-driven progression engine where every learning activity contributes to XP, streaks, achievements, and goals through a single pipeline.

Another challenge was balancing AI costs while still giving free users meaningful access to conversation practice.

I've learned a lot throughout this project, and there's still plenty I want to improve.

I'd love feedback on the project itself, the design, or the overall concept.

Website: https://fluenti.org

reddit.com
u/Opening_Scarcity_948 — 6 days ago
▲ 13 r/inventors+1 crossposts

Diy charging selfie stick.

I have a gopro and i am disappointed by the battery backup so I created this selfie stick which has 4 18650 2500 mah (so total 10,000mah battery ) battries and a Powerbank module (30W)which is enough to power my gopro for hours (this also counters overheating issues) . While not looking stupid. You can call this my first prototype.

This is something you can open and change the battries like you change AA battries in a remote. (so repairable!).

I can improve upon this but I am content for now. Will add an adhesive mount for gopro on top and I am good to go.

Please let me know your thoughts in the comments below.

u/MAXINUNZENDER13 — 7 days ago
▲ 12 r/inventors+2 crossposts

I made a smart home device that turns almost any surface into a controller- tap the surface and control your home

I spent that last little while working in this one and have finally come to a place where I am happy and working reliably, so: I made this.

It’s a capacitive controller that senses your touch through a finished surface -up to 60mm of wood, drywall, tile, glass, wood or stone. No plate no plastic you decide what to show in the surface or how to mark your zones.

The nerdy bits:
- speaks matter and mqtt
- runs entirely local - no cloud no account
- designed and built in Vancouver, BC, Canada. Im an electrical foreman by trade so this started as something I personally wanted to see.

Still rough around the edges and I’m heading towards a kickstarter later this year but I’m stoked it works. Happy to answer question about how it works

u/NoviSense — 8 days ago

Estou projetando um foguete e preciso de ajuda

O foguete que estou projetando é movido a combustível sólido e não sei como fazer o sistema de desaclopamento dele gostaria de dicas

u/opatudobeminglesh123 — 8 days ago

Fin with camera for underwater filming

 

 

Good morning

I have always been curious about what is beneath my board. I had a series of encounters with stingrays, sharks, and sea turtles, but it is often difficult to distinguish between shark species. Some bigger fish in tropical waters look like sharks. Sea turtles cannot see a windsurf board when they resurface. They are nearly blind.

Hence, I created this fin with an embedded underwater camera. It can also be used in marine archaeology to spot shipwrecks and examine erosion or unusual patterns on the seabed. The fin-mounted camera can also investigate marine life, such as invasive species and the return of marine wildlife once thought to have disappeared. As an example, I spotted reef sharks on artificial lagoons.

The camera has different color codes (green for filming, red for charging, and blue for WIFI scanning...). It has its own Wi-Fi, so images can be retrieved directly on the beach without using Wi-Fi at home.

The cap is screwed on top of the camera, and the camera casing holds the camera. There is a cog at the back of the camera casing that prevents the camera from moving/leaning right or left.

I can increase the HD definition from 720 (current camera) to 1080.

An image stabilizer would be nice, too, but that would increase the camera diameter and make it less hydrodynamic.

Contrary to expectations, this device does not slow or affect the course of the board.

This fin with a camera can be used on windsurf boards, but I am working on a similar concept for SUPs.

Feel free to market it.

 

u/Fair-Resolve — 8 days ago

i have invented something revolutionary

other inventors in a similar (proverbial) boat - please share your wisdom. what do you do once you realize that you have created something that will change the worls..... forever ?

reddit.com
u/billiegoat_awesome14 — 9 days ago

Not achieving my dream & thoughts of giving up

When I was little, I was lucky to find my passion in life which is to become an inventor. However, I started working on the invention ideas that came to mind. And I failed, and failed, and failed... Now, after 14 years of working on my ideas (which never saw the light of day), I can confidently say that I've reached a level of thinking, analysis, and the ability to see systems from an inventor's perspective, analysing them, understand how they work, and solve technical problems. Not only that, but I can now classify inventions. Meaning, I can classify inventions as simple ones worked on by a single inventor or complex ones resulting from billions invested in corporate R&D departments. The problem here (as a single inventor) is that at this time there are no simple problems left for someone like me to work on, and also (and this is the most important thing) I no longer have the energy to keep going. Now I'm seriously considering giving up on my little dream, but I'm afraid of regretting it later... My question is, has anyone else gone through the same experience?

reddit.com
u/Inventor-Abraham — 9 days ago