Open_ERV

If the flow were strong enough, could you make a protective bubble using air purifiers? Have really powerful air purifiers blowing air around you so no other air can flow into your space? For being on stage Might need to be some creative design But would that be possible?

You just love to get tool deliveries, because it expands capability! Also nice to buy American manufactured tools when possible! 😍😍😍

Hi Corey, you mentioned getting DMs from every direction on this. So this reply is partly to you, partly to that broader conversation and comments on both of your posts, because some of what's flying around needs context. It unfortunately isn't that easy. Price is primarily set by the bill of materials. I can't make parts cheaper just by wanting it harder. And there's nothing extra on CORE One, every part has a job. Strip any part and you get a different printer. What most people would not expect and many actually think it is a solution: manufacturing in China doesn't fix this either. Take an entry-level Chinese printer apart, quote the same parts in China at 100k+ volume, the parts alone cost more than the printer sells for in the West. Where is the sense in retail below parts cost? Do this long enough and price perception is permanently skewed. Some of what props it up: 0% interest loans, multi-year tax holidays, free land, free factories, 200% R&D tax deductions. And at the wild end, the state pays consumers back ~15% of the printer's price as a rebate. They are literally running out of ways to push more money into the propped industries. None of that is available to any Western company manufacturing in the West, or even trying to manufacture in China. And this isn't just a 3D printing problem. Same playbook took solar, drones, batteries, EVs. Now it's working on robotics. 3D printing would be done if we wouldn't be soo stubborn💪 About the “competitiveness“ I keep seeing in the replies. God I hate that word. Part of every conversation about every industry, especially in the EU. It’s shifting the problem to western industry side. Real problem is China breaking the WTO rules the next day after joining. So an $899 CORE One isn't a price decision. And unfortunately the "what if" framing, however hopeful, reinforces exactly the view that's hurting us in too many people's eyes. Complex and heavy topic, but tried to add some context.

For people curious, here are some pics of the machine in its shining glory. Remember this is 2019. Way before Bambu or other corexy printers.

My best one single piece of advice for any young engineer, or aspiring one is this. Engineering, can be, a very process driven, very analytical, and methodical in industry. But following this type of thinking, will only get you half way to being a really effective engineer. The danger of totally process driven thinking, is that it becomes compartmentalised, this can lead to a lack of focus on the primary core issue, causality. If you were a doctor, the patient arrives with a rash on the skin, the skin is damaged, so the treatment is perhaps a moisturising anti-septic cream, or maybe some anti-inflammatories. But, it could well be that the patient is actually allergic to something, and actually the body needs to stop ingesting the allergen. It takes a LOT more knowledge and effort to go from applying a salve to a visible problem, to understanding the system holistically as a whole, and treating the root cause. The secret is holistic thinking, which means you need to understand how everyting influences other components in the system and try to solve the root cause. Its very easy to become hyper-focused on detail in engineering, and sometimes this is necessary when detailing the correct solution, but very rarely is a problem solved by initial deep focus. You need to take ten steps BACK, and take in the whole situation. Also, never assume ANYTHING, I cant count how many times early in my career I was too shy and lacking in confidence to ask blunt questions. Only much later to find out that the people with item XYZ which kept breaking, actually in fact were NOT following the processes in the manual for how to operate it because some lacking aspect of their organization caused an artificial constraint, which they regarded as "probably ok", and so never told anyone about. It really is the equivalent of the IT joke "is it plugged in ?". Start with THE most basic questions, and work up. 1) What oil are you using ? - Oh we didnt have any of oil X so we just used oil Y because it was in stores. (Oh dear oil X happens to contain more gums than oil Y, and this is why your piston top rings keep jamming and destroying the cylinders) 2) Did you take an oil sample from the bottom of the tank? -Oh it was really fiddly so we just take it from the top, does that matter ?🤦‍♂️ (water is denser than most oils, so sits at the bottom, so if you take the samples from the top it wont show water in the system) 3) Did your machinists wear gloves when handling the parts ? -They said they never usually do, and its really annoying so they didnt bother. (many alloys can be etched by the acids in the skin, even some ultra expensive titanium alloys must NEVER by touched without gloves.) Start with the most basic appreciation you can of the system, and if you are confused by any discussion, its likely nobody else knows what the hell is going on either. Dont be afraid to hold up your hand, and literally say: "Sorry but I really dont understand what we are trying to discuss here, and why any of this has happened." Start solving problems by retreating to THE most basic position possible at which everyone can agree what the starting point was. Otherwise you end up in an alice in wonderland rabbithole of nonsense, with people pretending to know what is happening. If it sounds really obstuse and like waffle and nonsense, very often, it IS. STOP and insist everyone clarifies what the hell is going on before you waste any more time. The key phrase to have in your head at the start of ANY technical discussion is. "What the HELL is going on, and WHY ?" If nobody can tell you in ten seconds WHAT is going on, and WHY, they DONT KNOW EITHER. At that point, retreat, and keep reatreating until everyone gets a basic enough overview to all agree they understand that part, then, and ONLY then start delving deeper. Otherwise you`ll be in a meeting discussing what colour to paint the steering wheel, whilst the car flies off a cliff. You can only develop this type of thought process by REFUSING to engage in technical activities you do not understand, and asking questions until you DO understand. Keep asking questions, and you will soon find out who is real, and who isnt. Half the time, you will get no more than two questions in before you get either: 1) Because we always do 2) Because Your goal, is to understand any problem such that someone can carry on asking you why until everyone gets to such a basic overview level that a child will understand quite satisfactorally what you are trying to do. If you cant do that, you dont understand it yet, and thats ok, but understand that IS. And rectify it, go home, read papers, read books, ask experts "stupid questions" until you DO understand. If you can broadly understand all this, you will be very sucessful in your work.

Big nope to almost all of what these guys are saying. Prusa is doing a great job. Do things that are really worth doing and people in wealthy countries can pony up and pay a fair price. This is a society where people spend $500 a month on lattes and crap. Don't tell the people that are doing the actual work to do more for less. They are doing their part, now you do yours. You have to have an actual worthwhile use for the machine. If you are just making toys then there's your problem.