I Love Street Rods

After I win the Mega Millions lottery, I am going to buy a new car. It won’t be an Coupe-de-ville, but rather a custom built street rod. I will begin with an older U.S.built car from the 1934 through 1959 period.  I will have it designed and built to my specs. It will be as stylish as anything from today’s car makers. The reliability will rival my current 2006 Avalon. The design will include all the modern technology that makes a 2025 car what it is: Electronic ignition, fuel injection, four wheel power disc brakes, automatic transmission with overdrive, power steering, and more. The cabin amenities will include air conditioning, power windows, keyless ignition, heated leather power seats, and more. In other words, it will be a 2025 car with a slightly used and reconditioned body.

Today’s street rods are an offshoot of the hot rods that are made for speed and drag racing.  Street rods are totally drivable.  I am amazed at the design ingenuity of hot-rodders that build their own cars. I once met a man who had customized a 1939 Buick (shown below). He’s been building and redesigning the same car for twenty years.

Why does it take so long? Well, one reason is money. The builders usually have a day job with limited money to spend. A second reason is time. Most of these guys are family men and spend time on their cars after family and work obligations are met. Some of them run body shops, so they can work on their cars when business is slow.

The hobby of custom hot rod building is a huge business in America. There are many organizations dedicated to supporting  the builders. The  National Hot Rod Association, Good Guys, National Street Rod Association are a few of them. One of my most popular weblogs is  I Prefer Hot Rods With Fenders. This simple report keeps my BLOG alive with viewers.  Hopefully this post will be enjoyed as well. I photographed the cars at the Tinley Park, Illinois Cruise Night on a Friday in August, and found the 1939 Buick. This is the same model year as the car I learned to drive on.

All of these cars were saved from the junk yard. They all look pretty and go like hell! ENJOY.

After this post, I may even buy a lottery ticket.

1939 Buick Coupe Street Rod

Build A Wall

I have spent untold hours viewing YouTube videos in the past few weeks. Among my most favorite are those showing the construction of the border wall along the Mexican border.

There is an intrinsic beauty to watching this process. It is like watching a ballet. The sound of machinery blends with an orchestra. One can visualize the dollars being spent on each foot of the barrier being installed. The real question is whether or not it will achieve the goal of protecting the United States from invasion.

Yesterday, I found a video of Mexican Coyotes climbing over the wall using a rope ladder. The key to this method was to hire an ex-ATT pole climber with special shoes who could shimmy up the steel posts to throw a hook over the top with the rope ladder attached. Once the ladder was secure, it was simple for others to climb the steps, Flip over the top plate, and shimmy down into the USA.

It took me just a few more minutes to find videos of others climbing the wall without ropes or ladders. I guess the sensors in the wall will alert the Border Patrol to the location, and they can then drive there to find the person.

No matter how one looks at this barrier system, traffic flow is slower. Compare a single individual sneaking across the border to the recent massive surge of people storming the agents.

I am certain that even the Great Wall of China, as has Hadrian’s Wall in Scotland, has been breached.

Great Wall of China

Hadrian’s Wall is a World Heritage Site in the beautiful Northumberland National Park. Popular with walkers along the Hadrian’s Wall Path and Pennine Way

Walls have been built throughout history to deter people from invading a country. As countries fail, the walls become insignificant, as will the Great Wall of the USA. Someday, travel agencies will offer trips to view this wall, just as agencies lead groups of people on the China Wall.

In the meantime, I will enjoy watching the Dance of the Builders as they progress toward completion

Dreams, Dreams, Dreams

There has to be a formula for what a person does to stimulate dreams, like eating a particular food or drinking a specific beverage. In my case, none of that is key. Although I know I dream if I eat late or drink too much. Last night was no exception. I drank the exact wine I always drink, in the same quantity. I ate the same portions for supper, but I had a milkshake with Lovely. If it was the milkshake, then the dreams were somewhat happy. The theater of my mind showed films of times past when I was young and still in college. The scene occurred in a field on the International Harvester Research Farm during a summer internship 1958.

A group of starched white shirt IH executives came to the field to watch a demonstration of a new machine called a hay crusher. The function of the crusher was to split the stem of green hay. Lab experiments proved that doing so would speed the drying process and allow the hay to be baled much sooner and with more nutrients preserved. My part was the least important of the execs and engineers. I drove the Farmall 560 tractor with the crusher attached over a windrow of newly cut hay. I made one pass, and the crowd of white shirts all ran to the crushed hay to pick up a handful for first-hand observation. A consensus was that the machine did a credible job of crushing. Then, one of the higher white shirts asked, “What happens if a farmer runs the machine through a muddy field? Won’t the mud mixed with hay plug the machine and jam things up?” One of the lower white shirts asked me to drive down to the creek with a five-gallon bucket and to fill it with mushy mud.” I did as requested and returned. The highest white shirt himself spread the mushy mud along the top of the windrow of newly mown hay. He wouldn’t be ambushed by some youngster who improperly applied mud. My direct supervisor took me aside and told me to drive to the end of the row and proceed forward upon signal in fifth gear and at max throttle. (At this point, I must explain that the hay crusher was a simple device consisting of two counter-rotating rollers: one was smooth, and the other was a cylinder with a series of ridges welded to it. The hay fed through the rollers was crimped and crushed between the rollers.)

I sat on the Farmall 560 at the end of the row, waiting for the signal to advance. Then, it happened: the top white shirt dropped his hand holding a white handkerchief, and I moved the throttle lever to full speed ahead and hung on for dear life. The tractor built speed and bumped down the windrow, crushing hay. As I hit the muddy section at full speed, the tractor never slowed, but mushy mud hit my back and flew all over. White shirts ran in all directions to get out of the line of fire as the counter-rotating rollers were slinging mud far and wide. I wanted to laugh but feared for my job instead. It was a successful demonstration, and no one got hurt, but they sure got dirty. The dream ended because I woke myself laughing out loud.

AI Is Coming

I am reading a book titled “AI Super Powers China, Silicon Valley, and the New World Order” by Kai-Fu Lee. It has captured my imagination as a good story about something technical. I am nearing the end, and the author is presenting how AI will begin to take over in the very near future (like 5 years). He extols the many benefits of automation and the sadness of lost jobs. I thought about it and must tell you that automation doesn’t come easy. I spent 40 years at a company that produced what the world likes to call “zip ties.” At first thought, one can believe that a zip tie is not complicated, so why wouldn’t it be easy to automate? The tie is merely a plastic strip with a molded tip and a locking head on the opposite end. The product’s geometry comprises thin sections and thick sections, sharp edges and soft edges, massive sections like the tie head and body, and tiny delicate sections like the locking mechanism inside the head. Next is the material used to mold the tie. All plastics are not the same. Some are easy to melt and mold but don’t stand up to the rigors of application; the plastic must be tough, flexible, and strong. The material we finally chose to use was Nylon 6-6, but it came with its own list of problems. To mold, the material had to be very dry, but in actual use, the molded product must contain water to make it tough, flexible, and easy to apply. The product will be stiff and brittle if left dry as molded.

Raw nylon came to us as a pellet in boxes or bags. We use a special machine to melt the pellets and then to send the melted plastic into a steel mold with the product’s shape cut into it. This requires a channel cut into the mold that extends to the cavity. To make money, we required the number of cavities in the mold to be more than one. When I first began at the company, our typical mold had sixteen cavities with a binary runner system designed to make each runner extend from the nozzle to the cavity to be the same distance. We melted and molded more nylon in the runner system than in the product. What that meant was a gross imbalance in the cost. We didn’t make money molding runners. A human manually removed each shot of sixteen parts and its runner from the mold. This operator was incentivized to process the maximum number of shots per minute.

The molded product had to be removed from the runner, moisture-conditioned, and packaged before being sent to a customer. Initially, another department did the moisturizing, packaging, and boxing. When I left the company forty years later, we had the entire process automated. As many as two hundred parts were molded at one time. The parts were degated, counted, and packaged into plastic bags of one hundred or one thousand ties. A single person performed quality checks and put ten packages of a thousand ties into a box. We stopped automating at that point because paying back the machinery was more expensive than allowing the existing QC person who tended to four machines to take the final step. What I am getting at here is that AI makes sense, but automating every process may not.

Another aspect was in mold, and molding machine maintenance. When the mold is subject to being squeezed together by a machine capable of applying a million pounds of force to keep it closed during injection, the tiny parts inside the cavity are stressed beyond imagination. The result is that when a tiny part breaks, the product from that cavity is junk, and the process has to shut down to fix the flat. We then turn to quick mold change and maintenance procedures to replace broken parts. All of this is the result of thousands of man-hours of development.

Even the author agrees that automating the human hand motion is not possible at this time nor in the foreseeable future. AI may be great at analyzing orders and finding trends, or it might even be great at finding trends in the molding process, but only with scads of data. It took an entire team of electrical and process engineers years to determine how and what to measure to predict or even see trends. Eventually, we measured the process and improved our product’s quality and consistency.

The Way We Did It in 1970

In the end, we learned that automation comes at a great cost and that the cost of maintaining the equipment continues as long as the process goes on. Changing the process becomes unthinkable once it is solid and running smoothly. When that finally happened, the powers to be decided there was an advantage to sending the whole kit and caboodle to places like Singapore, Costa Rica, and Mexico, where the labor costs are lower. Just to let you know, I left out China. That is because the wisdom of our owner was that he paid for developing his process, and he believed the Chinese should pay their way, too. We had a security system in place that rivaled the NSA and CIA to keep our competitors from stealing our technology.

In conclusion, I say this, bring it on AI we are ready for you, but are you smart enough to take on the challenge in front of you?

UFO no UMO

Sometime in the nineteen seventies or eighties when I worked for a living, my job involved making cable ties. These devices are often referred to as Zip-ties. The difference between a cable tie and a zip tie is like that between a Mercedes and a Yugo, they both perform the same function but there is a world of difference between them.

One thing that fell into my realm was determining the root cause problem of cable ties that failed in a customer’s hands. I-was lucky if I had a single specimen returned, and it was a miracle if the customer could provide the QC number. The number traced the date of manufacture, the molding machine that made it, and the batch of material that we used. Unfortunately, 99.9% of the time that information was lost.

I spent a lot of time examining the broken sample under a high power microscope. After a number of years of performing this visual autopsy I learned a lot about failure analysis. In other words I got pretty good at recognizing failure modes. The majority of fails resulted from sharp corners that became stress risers in certain environmental conditions, namely a very dry atmosphere that would dry out the nylon material. Most of these mechanical defects could be fixed by softening the sharp edge of steel in the mold cavity that produced the stress riser.

Failure analysis didn’t always point at an edge or corner. Very often the fracture point was from inside the plastic itself. Very often the fracture plane pointed toward a pin-point, like the “eye of the tiger”. About once every hundred samples I detected a black spot tinier than a spec of dust much smaller than the period at the end of this sentence.

During this same time period there were news reports on the sighting of unidentified flying objects which we all called UFO’s. It was a natural to name this cable tie failure mode as a, get ready for it, “UMO” or “unidentified molded object.”

A few times I sent the broken sample to duPont for analysis using their electron beam microscope. They would send me photos which showed the pin-point spec looking like a planet in a galaxy. They couldn’t identify the spec either.

At the beginning, using UMO to describe this specific failure mode, I had to do a lot of explaining of what it meant. The search for this critter went on beyond my days at the company. It wasn’t until the powers to be decided to totally instrument our process that we began to actually identify the conditions that existed during the formation of a UMO.

I retired in 2003 and by that time everyone in the company used the UMO term daily. All of our nylon suppliers also used the term. It took thirty years for acronym to become recognized. If you Google UMO or unidentified molded object you will find nothing like the UMO in the molding sense, and probably never will either.

Just as I never really identified the UMO’s in my universe neither have the residents of the planet Earth come even close to understanding what a UFO is, but this month the USA shot down four of them.