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i/Engineering

madhu

•

3 months

Weekly Career Discussion Thread (06 Jan 2025)

\# Intro &#x200B; Welcome to the weekly career discussion thread, where you can talk about all career & professional topics. Topics may include: &#x200B; \* Professional career guidance & questions; e.g. job hunting advice, job offers comparisons, how to network &#x200B; \* Educational guidance & questions; e.g. what engineering discipline to major in, which university is good, &#x200B; \* Feedback on your résumé, CV, cover letter, etc. &#x200B; \* The job market, compensation, relocation, and other topics on the economics of engineering. &#x200B; \> \[Archive of past threads](https://www.reddit.com/r/engineering/search?q=flair%3A%22weekly+discussion%22&restrict_sr=on&sort=new&t=all) &#x200B;...

2

6 replies

sakshu_006

•

4 months

Measured force through rubber hole

**Hi everyone**, I am trying to calculate the force required to push a stainless steel cuboid through a hole in another cuboid of neoprene rubber and can't seem to find a good formula to calculate it with. The data is as follows: It is a stainless steel cuboid of **0.04"** (1mm) by **0.04"** (1mm) by **0.32"** (8.25mm) deep, the hole cut in the rubber is **0.023"** (0.6mm) by **0.023"** (0.6mm) by **0.32"** (8.25mm) deep, it is a rubber cuboid of **0.197"** (5mm) by **0.197"** (5mm) by **0.32"** (8.25mm). The...

2

11 replies

abhishat15

•

4 months

Does anyone happen to have a coupon code before I go ahead with this?

[This Workstation is way too expensive. Anyone happen to have a coupon code that works? ](https://preview.redd.it/3a7oc9509vae1.png?width=529&format=png&auto=webp&s=977799f61986a0c79bed168e1fac9675eb5639a9)

3

3 replies

shubham_mishra

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4 months

What's a good free (or very cheap) calculator iOS app akin to the TI-36xpro?

What's a good free (or very cheap) calculator iOS app akin to the TI-36xpro?

4

3 replies

abhilasha

•

4 months

Questions about older engineering books

I double majored in comp sci and accounting and am trying to self-teach myself engineering. I got some (older) textbooks from thriftbooks to give myself a bit of a crash course on just general stuff. Here is a list of the general subjects i got books in and the years that they are and I just wanted to make sure I wasn't going to read anything super outdated even though I am pretty sure alot of mechanical engineering has been set in stone for a very long time. Fluid...

1

5 replies

sainsamridh_01

•

4 months

Should I consider myself an "Inventor" or a "Maker"?

I have been making smart devices with ESP32 boards, sensors, relays, LCD screens, etc. Recently I made my own smart thermostat for a natural gas heater in my detached garage. I design and 3D print my own cases and enclosures for these devices. I'm learning how to use KiCAD to make my own schematics and eventually make my own PCBs. I use SolidWorks and Inventor to make my designs. I code everything myself. I also have been dabbling with resin casting by making 3D printed molds and things out...

3

6 replies

tanisha_jk00

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4 months

I Wrote a Handbook on Simulation in Python with SimPy

Hi folks, I wrote a handbook on discrete-event simulation with [SimPy](https://simpy.readthedocs.io/en/latest/), designed to get you building simulations using Python. Kind of like the official documentation but on steroids. I have used SimPy for over a decade. Discrete-event simulation is useful for modelling real world industrial systems such as factories, mines, railways, etc. My latest venture is sharing my know-how on how to do this. If you do get the handbook, I’d really appreciate any feedback you have. Feel free to drop your thoughts here in the thread or DM...

2

2 replies

mrigank_shekhar04

•

4 months

DIY Refrigeration cycle water cooler

Hi! Can someone point me in the right direction for calculating and building evaporator and condenser coils for refrigeration cycles? Looking for anything, textbooks, math, articles, for calculating diameter, size, length, coil numbers. Stuff like that. I bought a tiny R134a compressor on ebay and am gonna make a refrigeration cycle. I'll turn the evaporator side into a concentric tube heat exchanger to cool the water for my laser cutter. Anything to point me in the right direction. Thanks for your help!

4

3 replies

vratesh62

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4 months

PE Reference Materials

Hi. I am an EIT in North Carolina. I'll be sitting for the Civil: Water Resource and Environmental exam in May. I am looking at purchasing an online prep course. I've narrowed my decision down to the following options: 1. Engineering Education and Training (EET) 2. Civil Engineering Academy I'm looking for recommendations or firsthand experience with either prep course. If you've done one or the other and insight to share on if it was worth your purchase, please let me know. Thanks!

5

1 replies

smehssaketkumar01

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4 months

“Idiot proofing” a design only creates more creative idiots. Discuss.

“Idiot proofing” a design only creates more creative idiots. Discuss.

1

10 replies

mrigank_shekhar04

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4 months

How does ERTMS Become Global Rail Signalling Standard?

How does ERTMS Become Global Rail Signalling Standard?

1

0 replies

tanishasahu0911

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4 months

Weekly Career Discussion Thread (30 Dec 2024)

\# Intro &#x200B; Welcome to the weekly career discussion thread, where you can talk about all career & professional topics. Topics may include: &#x200B; \* Professional career guidance & questions; e.g. job hunting advice, job offers comparisons, how to network &#x200B; \* Educational guidance & questions; e.g. what engineering discipline to major in, which university is good, &#x200B; \* Feedback on your résumé, CV, cover letter, etc. &#x200B; \* The job market, compensation, relocation, and other topics on the economics of engineering. &#x200B; \> \[Archive of past threads](https://www.reddit.com/r/engineering/search?q=flair%3A%22weekly+discussion%22&restrict_sr=on&sort=new&t=all) &#x200B;...

5

0 replies

navya

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4 months

Anyone have experience with publishing technical books with AIAA?

I was recently made aware that AIAA provides publication services of technical textbooks for specialized fields within aerospace. Unlike a conference paper, this service allows for multiple authors that are Subject Matter Experts (SMEs) to come together and develop technical guidance on complex and niche engineering topics. I’ve published papers with them before, but never textbooks. Has anyone here published textbooks with AIAA before?

1

0 replies

smehssaketkumar01

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4 months

Seeking Help to Improve the Durability of the Azeron Cyro (One-Handed Gaming Device)

Hello everyone, I’d like to reach out to this community for help with a challenge I’m facing. As an amputee with only my right arm, I’ve adapted my computer usage by relying on the **Azeron Cyro**, a device specifically designed for one-handed gaming. It’s been incredibly useful in allowing me to stay active on my PC. For those unfamiliar with it, the Azeron Cyro is a joystick-keypad hybrid that uses mostly 3D-printed components with some aluminum parts. While the Cyro works well for my needs, I’ve noticed a significant...

5

2 replies

sakshu_006

•

4 months

Volume of tube cooler

I have a cooler with 148 , 1inch gauge 14 tubes. Its 10 ft long. It has 2 headers 5.5in x 6in x 10ft long. Is there a simple way to check how much bottles of 2200psi nitrogen botles i would need to leak test it? I dont know if there is a clever way to calc the volume but i did it the long route. But im still unsure how the N2 would compress the air. Im also concerned about wasting n2 by having the bank just leveling...

5

0 replies

abhishat15

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4 months

Home-made spectrometer (beta)

Home-made spectrometer (beta)

4

3 replies

viraj.catanxs

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4 months

Weekly Career Discussion Thread (23 Dec 2024)

\# Intro &#x200B; Welcome to the weekly career discussion thread, where you can talk about all career & professional topics. Topics may include: &#x200B; \* Professional career guidance & questions; e.g. job hunting advice, job offers comparisons, how to network &#x200B; \* Educational guidance & questions; e.g. what engineering discipline to major in, which university is good, &#x200B; \* Feedback on your résumé, CV, cover letter, etc. &#x200B; \* The job market, compensation, relocation, and other topics on the economics of engineering. &#x200B; \> \[Archive of past threads](https://www.reddit.com/r/engineering/search?q=flair%3A%22weekly+discussion%22&restrict_sr=on&sort=new&t=all) &#x200B;...

4

1 replies

sainsamridh_01

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4 months

practical pneumatic/fluid dynamics reference book recommendations?

Hi, I am trying to learn more about pneumatics/fluid dynamics to be able to make relatively accurate 'back of the envelope' calculations. For statics roarks formulas for stress and strain are very nice but I have not found an equivalent for pneumatics/fluid dynamics yet. Do any of you have any recommendations? Thanks

10

0 replies

karan.batman

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4 months

Who are your go to suppliers for quick turnaround mechanical fabrication (US & EU)?

I have personally used Protolabs for machining with good results. Looking for suppliers of the following services: -machining -sheet metal -weldments -coatings Part sizes ranging from 10 cm (4in) up to 2 meters (~80in). Quantitites 5-10 pieces. Quoting should take <5 days and items delivered in 4 weeks or less. Paying a premium for expedited work is less of a concern compared to the cost of delayed development. Thanks in advance!

16

0 replies

smehssaketkumar01

•

4 months

Look for a hard material to withstand galvanized metal rubbing it.

Look for an alternative material to use as a guide for solar farm pile installation. Current OEM material is a softer plastic that wears very fast and isn’t very cost efficient. I am able to custom cut any material just not sure what would wear the least to make it more efficient.

10

0 replies

i/communityname

i/engineering

Weekly Career Discussion Thread (06 Jan 2025)

Measured force through rubber hole

Does anyone happen to have a coupon code before I go ahead with this?

What's a good free (or very cheap) calculator iOS app akin to the TI-36xpro?

Questions about older engineering books

Should I consider myself an "Inventor" or a "Maker"?

I Wrote a Handbook on Simulation in Python with SimPy

DIY Refrigeration cycle water cooler

PE Reference Materials

“Idiot proofing” a design only creates more creative idiots. Discuss.

How does ERTMS Become Global Rail Signalling Standard?

Weekly Career Discussion Thread (30 Dec 2024)

Anyone have experience with publishing technical books with AIAA?

Seeking Help to Improve the Durability of the Azeron Cyro (One-Handed Gaming Device)

Volume of tube cooler

Home-made spectrometer (beta)

Weekly Career Discussion Thread (23 Dec 2024)

practical pneumatic/fluid dynamics reference book recommendations?

Who are your go to suppliers for quick turnaround mechanical fabrication (US & EU)?

Look for a hard material to withstand galvanized metal rubbing it.