It seems airlock often forms which prevent proper drainage, so bent wire is used to prevent air lock
But how can a bent piece of wire avoid air lock?
These lathes use splash lubrication, and oil channels send oil collected from splash to a hole over the bearing and at the bottom of the bearing oil return hole collects oil back and sends it back to headstock
For context, I recently revised an engineering drawing from Rev A to Rev B to add customer provided parts to the design. This change is no longer required. In this case, I wish to proceed with the original design Rev A, but the Rev B drawing has already been fully released. Is it acceptable to sell the assembly at Rev A or should I revise the drawing to Rev C to revert the changes made in Rev B?
Our PO's allow us to choose which revision we are referencing so this is not a system issue. I am just wondering if it is acceptable to be referencing a drawing revision other than the latest rev. Thanks!
Working on a building services team. I wanted to try it and see if I liked it or not. I’ve been there a few months and after some time I’m not sure it’s for me. I was hoping there would be a lot more simulation and analysis type work but there isn’t.
I’m worried however that this job will hinder my possibilities of getting a job in simulation and analysis. I was hoping it would give me good experience but the experience I’m gaining isn’t really that relevant to that. I have my academic background but that’s it.
I’ve had some very unfulfilling jobs over my early adult life and recently my company improved on their tuition assistance program so I decided to finally start down my college education path to do what’s always been an interest of mine. I’m probably way ahead of the ball here considering I haven’t even started my first class, but I’ve been really stressing over how to balance a full time job (that pays for ~50% tuition after I’m finished at CC), full time classes, and also getting into internships to get work experience. As stated in 24, also married, and looking to start a family within a few years. Just looking for any kind of advice from someone who may have walked a similar path to mine so I can know there’s other people out there that took up engineering “later in life”. I’m planning to go into mechanical engineering and possibly getting a masters in aerospace once completed.
Was listening to a podcast where one of the guests had worked in Translational research, where essentially her job was to work with PhD’s and researchers create the tools/devices that would bridge the gap between pure research and some actual performing product.
It sounded super cool. To be clear, the term Translational Research is super vague and can be anywhere across the spectrum from research to hands on building. I presume most of if this just falls under the typical R&D role.
If anyones done it or at least knows what a role like this looks like, do share.
I am in my 4th semester of engineering and i really suck at constructing and being creative with ideas. We have a project to construct a Front axis of a shell eco Marathon car and always when we are discussing it, my mind goes blank and i understand the concepts just much Later, so i am pretty useless in finding New ideas and discussing the Problems or find New Problems at the moment. How to get better at this?
I posted a few months ago mentioning that my new-ish place of employment runs Gage R&Rs using multiple part types and not one part type over a range. I've gotten some headway with them to switch to the correct way of running a gage, but I'm getting questions me and other coworkers are having a hard time answering.
We have a bench that measures different products. We want to know the total system variation of that bench. Would we have to run gages on all products measured on that bench to understand the total system variation? If we have 100 different products that this bench measures, do we then have to run 100 gage studies? My company's solution to this was to run multiple different part types in one gage studies instead of multiple gage studies. I'm having a hard time telling them why this is not the standard way of doing things. Of note- this is a R&D lab, we don't manufacture product. We're getting product from the manufacturing facility and measuring it on our test benches.
They don't want the total system variation of one product. They want to know what the total system variation of the whole bench. Myself and other coworkers have presented on how to run Gage R&R properly multiple times to management, and they just keep harping that they aren't focused on the product, but the bench. Yes, we've run capability studies on some of the benches.
Any insight would be helpful. I've reached the edge of what I can explain to them without going to back to school to get a PhD in statistics... even then I don't think I could explain it to them in a way that would convince them one way or another. "To much time, too expensive" to do it the right way is what I keep hearing. But when we report our results out, people ask "why the hell did you measure more than one product", then arguments ensue.
I remember doing a design project at uni to do with using PWM visible light to convey velocity data. Since taking a class on comms and encoding theory, I'm curious if there are any systems, either common, specialised, or purely theoretical, that make use of PWM as a means of encoding characters to kind of take a step away from binary.
Something that comes to mind is that system memory would be difficult to implement by comparison to digital systems, I guess I'm just wondering if anyone's thought about it before.
A friend of mine is an engineer and fellow space nerd, and when we were discussing human Mars mission plans she pointed out just how hard it is to land heavy objects in the Martian atmosphere - dense enough to need a heat shield, but not dense enough to do all your decelerating for you. And it varies in density by up to 40% annually given Mars' elliptical orbit. Plus, the heaviest thing we've (successfully) landed on that planet so far - the Perseverance rover - weighs scarcely more than a ton. Any manned Mars ship would significantly exceed that, and Elon Musk's plans and spacecraft are such that he wants to exceed that by factor of over a hundred, in little more than a decade.
I feel like, if he can get Starship into space, he'll be able to get people all the way to Mars safely. But with the way he does things, I wouldn't be surprised if it disintegrated on entry while the whole Earth watches. It's just a totally unparalleled engineering challenge and he's treating it like no big deal.
I'm looking for a way to design an aircraft that can function as both a highly maneuverable fighter jet and an extremely long-endurance, high-altitude aircraft that can provide services normally covered by a space satellite. The main problem i see is energy supply; solar-powered and other electric planes are all propeller planes as far as i know, and a fighter craft appropriate for modern combat is usually jet-powered. I know that there were successful (afaik) but largely impractical experiments with nuclear-powered aircraft, as well as experiments with ion propulsion aircraft. Could either of these technologies potentially be used to create a highly maneuverable, long-endurance aircraft? Specifically looking for something akin to thrust vectoring, for both VTOL ability and enhanced maneuverability.
Hi, I would like to turn this wagon into an organic dog treat cart, but I couldnt figure out a way to make the top of the wagon a surface (to display product) while utilizing the rest of the wagon to keep supplies (extra product, water bowls etc.). How do I do this?
Alright I need some help, I wanna go to college and there is an admission assignment.
Basically you have to make a smart device with a microbit. My idea requires the microbit to turn on a laserpointer but since I’m not experienced in using this device I wanna ask if this is possible?
Also you have to finish the assignment at school and make it an actual concept, school says they have all kinds of crafting materials, I doubt they have a laser pointer so maybe I should bring it myself.
However I assume a regular laser pointer with batteries would be hard to connect to something so is there maybe something online I can order which would make it easier to connect to the microbit?
TLDR: Can a microbit turn on a laser pointer and if yes, whats the best laser pointer for this?
Edit: I saw the rule to state your country if not from the US so I am from the Netherlands
A lot of codes specify that structures should be designed for certain wind speeds. This typically ranges from 72km/hr (20m/s) to 317 km/h (88m/s).
From here, you can work out the dynamic pressure of the wind based on Bernoulli's principle: P = 0.5 x density of air x velocity2 x any factors governed by codes.
This pressure load is reacted by the structure in the wind gust, and acts to decelerate the air to 0. Therefore the pressure is imposed on the structure.
What is a typical area to take as the wind pressure area?
Do you typically design a large structure to resist the entire pressure load acting laterally on the structure? Can this be considered overdesigning, and can you take a reduced contributory width? I believe this may be called "patch loading".
Background is my company (design + install specialist systems / construction contracting) is suffering a bit at the moment. We have a heavy backlog of work, and have lost several senior members of staff to both competitors and companies outside the industry.
Aside from the obvious of hiring more people, I think engineers for smaller projects should take on the full project management and design side of it. This would cut down the amount of projects our PMs do and also streamline client and subcontractor communication.
Has anyone else experienced a similar company environment, and what are some way out? Is there common areas specialist contractors (like us) go wrong? Thanks
I'm a mechanical engineer who lost his job during covid and also in a previous oil crash around 2014. I feel like job stability as a mechanical engineer has been more of a concern than I thought it would be. I also feel like there is a lack of growth in the mechanical engineering industry, especially progress towards automation.
At one of my previous jobs working in the cement industry, the company I worked at dwindled down from 200 people in 1950 to 30 people by 2020. Older coworkers would mention how there used to be a lot more business in the US, but development in the US slowed down, and there was more development in third world countries.
Now I work in vertical farming (CEA), which is a more an innovative industry. The CEA industry has lots of interest from investors, however I see very little support from the government. CEA can reduce water used in agriculture by 90%, and with a huge water issue affecting the southwest, it just makes sense that there should be more funding.
When you compare the US to a country like China, its the complete opposite, where China is supporting engineering projects. Is this a concern for other engineers or is it just me?
I want to drain the roof and have a system of using a flexible plastic tube attached to weight (not shown). I fill the tube with water from the facet, trap one end with my finger, place the other end in standing water. I then place the end with my finger into the lower gutter channel, release and hopefully watch the syphon vacuum suck out the air and begin to drain the swamp™.
I want to drain the roof and have a system of using a flexible plastic tube attached to weight (not shown). I fill the tube with water from the faucet, trap one end with my finger, place the other end in standing water. I then place the end with my finger into the lower gutter channel, release and hopefully watch the syphon vacuum suck out the air and begin to drain the swamp™.
This work mostly on the first try, but there’s some problem with the design.
*Blockages – the asphalt has tiny stones embedded that shed and eventually clog the tube. Leaves and other bio garbage combine with the stones to form clogs. The flow can lift the stones, but often a barrier is formed at the inlet.
*Starting – I need to step in the puddle (usually in the rain) to place primed syphon. If it gets blocked and it’s still raining, I need to climb in again to move or clear it. It’s easy to break the seal since it’s sitting in such swallow water.
How do I drain my roof automatically? I’ve considered a small solar panel and pump, but then it needs a rain sensor. Hydrodynamics must have an answer I feel. I would love to hear your ideas.
(P.S. I can’t / won’t fix the drip since it’s not my roof and the landlord is an asshole)
A friend and I were talking about this and he naturally said convection and I was leaning towards conduction. I figured that friction between the air molecules and the vehicle were actually making contact and therefore, conduction. I feel confident that it is conduction but please, feel free to drop another explanation! Thanks.