JAG Engineering LLC

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JAG Engineering LLC last won the day on February 18

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    JAG Engineering, LLC
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    Pratt Institute & U of Santa Clara

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  1. Read the entire thread again and you will understand my point. If nothing else read your comments Nov 22 2015. How I arrived at this thread just a few days ago that started months ago I am not sure.
  2. Realism? I thought we were discussing perpetual motion?
  3. While I was working at an extension program at a university we were approached by many wannabe inventors with perpetual motion machines. Some were obvious as to why they did not work. Others required some time to think about. Some came with very elaborate well drawn plans done by hand. The problem with all of them was than no math was applied. They just stated that one action led to another and then presto the device would just keep going. The internet is no help. There are outright frauds and others I have not been able to figure out. None of them have any kind load being driven. Some may have a voltmeter or other type of instrumentation. The inventors will place their work on the internet for the world to see but will not have a national lab or well known university test the device. Here is my plan for being a millionaire. I will give Dr D 1 dollar. He will give two dollars to one of the blog members, who in turn will give $3 to another then $4 to another and so on. When the amount reaches $1 million that last person gives it to me. All the steps are there. A little math is even provided. Anyone believe this will work?
  4. Dr. D’s story reminded me of two related stories, then another and then another...but I will stop with two. The follow appeared in the Wall Street Journal 15-20 years ago. The happy ending was that the supplier finally won the court case against the US government. The unhappy part of the story, was that it cost the company much time and money. The article went on to say that a lot of companies go bankrupt from similar situations, but I digress. The government contracted with a commercial supplier to produce a device. The full-up device had a performance specification. The government was to provide the power supply that would be part of the final product. The government was never able to provide a power supply that met the government's own specifications, yet the government expected the supplier to provide an end item that was to specification, using an out of specification power supply. Only a government could keep a straight face and insist this made any sense. The other example can be found at the link below, titled What do you mean you made it as we told you to? https://www.linkedin.com/pulse/what-do-you-mean-made-we-told-joseph-a-gulino-pe?published=t At the above LinkedIn site you will find other articles by me.
  5. One cause I think we will begin to see more of is due to the confusion of what design is. At one time not too long ago an engineer would do a design. The design started with some form of a requirements document or product description. The design consisted of: sketches, engineering calculations for predicted loads and load paths, stress analysis, sizing of members, bearing, seals etc. This information was given to a designer or drafter who would create the art. With young engineers having ready access to 3D CAD and simulation the creation of the Art is mistaken as the design. Simulation can do some of the upfront work during the creation of the Art but I have found too many who don't know how to use the simulation because the basics are not being learned due to the rush to create Art, and thinking that is design. A recent project I was reviewing was canceled when I sent in my preliminary findings. The intern created an impressive CAD model. When I broke out the advanced tools, pencil & paper, then created the free body diagrams, the Art was just that. At the beginning of the project I asked for the calculations. None could be found. My recent Blog I Thought You Knew That, may also shine some light on the causes.
  6. During my Introduction to Engineering class the professor said many things that have stayed with me for 40 years. Two come to mind reading this conversation. Before you start a project research how everyone else has done it. "Everyone" was not to be taken literally but the point was to learn from others. He also emphasized details. For example we had to pick a project. Most wanted to design the next rocket to the moon. I picked a bolt. Started with selection of bar stock and learned from an old timer who ran the machine shop how to turn a bolt on a lathe including cutting the threads. The bolt, an item we take for granted has centuries of development (learning from others) and many minor features (details) that exist for reasons we don't think about. For that project I had to think about all of them and being very green, it was a big task. Why, for a given size bolt, is the flat to flat distance the dimension it is? Why is the head as thick as it is. What cutting tool arrangement is required if you want to cut a full thread vs partial. I'll never forget the professor asking why use steel and not soap. Sounded silly but it was to make us think and verbalize the reasons. Deciding on steel was easy. Which steel and for what application is critical in many applications. So when someone wants to know everything about anything be prepared to read!
  7. Recently I was interviewed by a Mechanical Engineering student on the importance of communications. I’m approaching 40 years in engineering practice so the examples began to flow and the student’s 15 minute time estimate for the meeting quickly turned into two hours. The meeting itself was a lesson in communications. My awareness of the root cause, that I will describe below, I believe made the information more valuable. The student and I covered many issues on the topic of communications, but the emphasis of his questioning was the difference between communicating with other engineers versus business majors or the sales personnel. The root issue of communications I believe goes deeper and must be identified to minimize the occurrence. There have been many occurrences of communication problems in my life and not all involved engineering. In the past, I viewed each incident as individual and isolated events. Of late, I have come to the conclusion there are common causes. Here I address one that I think is more common than realized. Communication problems are often dismissed as the language, generational, or cultural gaps. These all contribute to the issue but are not the root cause of a large portion of communication problems. If fact, obvious language issues often result in precautions being taken to avoid miscommunications. About 25 years ago I was among a group of technical people gathered for a seminar. While waiting for the speaker, conversations started within the group. Two people were carrying on an energetic conversation for 10-15 minutes consisting of acronyms -- just alphabet soup. Just prior to the speaker arriving, the two having the conversation realized each used a particular acronym for entirely different and unrelated meanings. Yet these two had conversed as if they were on the same subject. Imagine if the conversation had developed into a disagreement to the point of anger, and the instructor arrived before these two were able to define terms. Both would have left thinking badly of the other and maybe worse. In another situation I was just hired into a new position by a former coworker, now manager of a program. He asked that I do something which I immediately did. At our next meeting, the manger began to tell me how I should go about doing the task. I was fuming, to say the least. I was saying to myself, "what was wrong with the way I did it?" I fumed and fumed until I finally asked. The manager looked at me in astonishment and said “You did it? I am not use to anything getting done so fast around here.” One final example. A new VP of engineering admonished me for my poor design and release process causing many problems – no specifics were provided. I was shocked to the point of speechlessness, so I did not immediately ask for specifics that would have revealed the root cause of his dissatisfaction. I assumed my 2 + year old procedure had grown stale and caused problems. I printed a copy of my Design and Release Procedure and read it line for line, looking for something that was no longer correct. After failing to find any problems, I wrote in large red letters “Tell me what I need to change.” The boss was not at his desk, so I left it on his seat. Sometime later, a much more humble boss came to my office and asked if the release date on the procedure was correct – it was, and about 2 years old, so I said yes, and he left. All three examples have the same root cause. In each case one or both parties assumed implicitly that the other party knew something that in reality they did not. Case One: Each party assumed that a particular acronym meant the same to each of them. Case Two: I implicitly assumed the manger would know that I would quickly act on the simple assignment. We had worked together for 6 years prior, on a different program. Case Three: The VP had come to believe implicitly that there was no written process. In his mind, every problem that arose appeared to be a result of not having a process. I assumed he was talking directly to the written document that he did not know existed. As an independent Professional Engineer many of my clients are not engineers. What were once safe assumptions while working in an engineering office with other engineers, I learned quickly was no longer acceptable. Current technologies allow people from around the world to communicate with incredible ease. This has resulted in the root-cause I suggested above to run unchecked. When we write we need to be aware of generational, language, or cultural gaps as well as office jargon*. All can easily result in implicit assumptions of other people’s knowledge that are false. The first professional letter I wrote to be send outside the corporation was brought back to me by my supervisor. He called to my attention that office jargon has no place for a formal business letter. Here again, I was implicitly assuming the terms used every day in our group would be universally understood. It took me 40 years to “connect the dots.”** * Special words or expressions that are used by a particular profession or group and are difficult for others to understand. ** To understand the relationship between different ideas or experiences
  8. Looks like the boiler feed, return, and water conditioning.
  9. Justin, I attended a university part time to earn my Masters in ME while working full time. My wife worked 20-30 hr per week. The first of two children was born on my first midterm and the second before I graduated. That allowed me to have the income required to support my family and the company paid almost all the cost. The trade off is how long it takes. If you have an AS you could be about halfway. It will depend on what classes were required for computer aided drafting degree. Many years ago the jobs of drafter, designer, and engineer were distinct. Those boundaries have been blurred and many doing CAD work mistakenly think that is engineering because many engineers now do what appears to be drafting. There is a debate about the wisdom of this approach. I have not checked out the MIT offerings but that is a good approach to see what an BSME is all about. Good Luck
  10. If you can survive on $15/hr x 15hr per week do so and finish your education. A friend tried the full time work and part time BSME and dropped after a short time. The level of difficulty multiplied by the extended duration many times kills plan. I knew a few who could do full time work and full time school. I think they were also able to leap tall buildings in a single bound. I did work full time and attend graduate school which was a killer. The MSME program required 45 credits and most classes met once per week for 2 credits. I could not handle more that 4 credits at a time and on occasion had to take only two, due to that quarter's offerings. I had a growing family and going full time would have been a double hit - no salary and no company to pay for the education. Get it done!
  11. I was reviewing some technical papers preparing for some rigging work that may come my way. An example far far simpler than the problem Dr D presents I decided to see if there was enough information provided to do it graphically. Well there was. I then returned to the two equations used to determine two different cable lengths. To my surprise the author had repeated the same equation for the two different lengths. I did not notice the equations were the same at first. Any examples I find for a particular type of problem, I work out in detail to make sure I get the same answer and understand every step. I carry all units through from start to finish. If there is a step I do not understand or can't duplicate I look for other approaches. When I studied for my PE 34 years ago I used a review book that was the size of a large city telephone directory. I found many typos and errors. Often the answers were correct but the equations were missing a coefficient or variables had mixed up subscripts. If I blindly followed the method I would not arrive at the correct solution. Just as in newspapers don't believe everything you read.
  12. A related topic
  13. Its not just the engine. BS4 defines limits of pollutants that can come out of the exhaust for each class of vehicle, plus a few other things. This can be achieved in more than one way. Of course, with more engineering. The vehicle is overall better than BS3. Got the above from a Google search.
  14. Free, cost $10 - funny. I have a few versions of Free CAD that was actually free. I wonder if the later versions are now sold.
  15. There are many collector groups you can locate on line. These hobbyists are an incredible source for information. I watched this video and they mention the transition to vinyl but did not specifically say the horn would not work but after reading your post that may be what he was referring to.