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The Wonder of Flight

July 15, 2017

Filed under: 3D printing,additive manufacturing,entertainment,event,life — Terry Wohlers @ 08:07

Note: The following was authored by Joseph Kowen, associate consultant at Wohlers Associates.

I have always loved to fly. As far back as I can remember, I was always looking upward at the first sound of a plane. I can still feel the excitement of a trip to the airport as a child. I grew up in the southern tip of Africa when air travel was not very popular, so an airport visit might result in seeing only two or three planes. The Concorde came to visit one year, and my cousin was allowed off school to see it. I was not so lucky and had to make do with viewing the pictures he took.

Last month, I visited the Paris Air Show for the first time, a dream come true for an aviation aficionado. The show is a biennial celebration of all things aerospace. It’s a big deal—and big business. Orders valued at $150 billion were announced at the event.

The event is a showcase for new aircraft. It is also an opportunity for more than 2,000 exhibitors to display products and services used to build these complex machines. One of the main reasons for my attendance was to observe how additive manufacturing is advancing in the aerospace industry. AM is indeed playing an increasingly important role in aircraft design and manufacturing. Many AM systems and service providers demonstrated how complex shapes and geometric features can be built additively. Also, they showed how these parts can be made much lighter without sacrificing strength. In the aviation industry, every bit of weight reduction translates into cost savings.

After my professional duties were out of the way, the real excitement was seeing the aircraft on display. The Airbus A380 showed remarkable agility for a craft of its size. The Lockheed Martin F-35 Lightning II and the Dassault Rafale performed breathtaking feats in the air.

I have always felt that flying was the ultimate mastery of science over the forces of nature. I never fail to marvel at the ease with which tons of equipment lift off the ground. Having spent a few days soaking up the latest that aerospace has to offer, I am more in awe of the ingenuity of the engineers that have made flight seem so effortless.

When leaving for home, I again luxuriated in the wonder of flight, as I have done since first stepping onto a plane. I suppose I’ll always feel the excitement of flight every time the wheels lift off the runway. It’s not something I will ever take for granted.

Ireland

June 19, 2017

Filed under: life,review,travel — Terry Wohlers @ 00:59

Note: The following was authored by Ian Campbell, associate consultant at Wohlers Associates.

Having been born in Belfast, Northern Ireland, I thought I knew a lot about all things Irish. However, having joined Terry and Diane Wohlers on a trip to the southwest of Ireland this week, I have learned a lot more. Ireland is sometimes called “the Emerald Isle,” and here in County Kerry, the landscape is so incredibly green. There is an Irish song named “Forty Shades of Green” and I am sure we have seen most of them.

There is, of course, good reason for all the beautiful green vegetation. It rains. We met a waiter who told us that from October through March, it rained every day. Every single day! Amazingly, we are enjoying day after day of blues skies, bright sunshine, and near perfect temperatures. Today is our fourth day of it. The locals say we must have the luck of the Irish. The contrast between blue sky and green landscape makes everything even more spectacular.

It is sometimes said that America and Britain are two countries divided by a common language. Here in Kerry, they may write in English but we are not sure if they are speaking it. I can nearly manage to understand the local dialect, but Terry and Diane often look bemused. However, the Irish are so friendly and helpful, and they work hard to make visitors feel welcome. They are also very proud of their country’s history, from medieval walls dating back over 900 years, to a parade of 300 vintage cars and tractors, celebrating the 100-year anniversary of Henry Ford setting up a factory in Cork, Ireland, where we spent the first nearly 24 hours.

Perhaps the most interesting (or frightening) experience we have had was kissing the Blarney Stone at Blarney Castle. It involved climbing more than 100 steps and hanging over backwards from the castle parapet to kiss a stone that supposedly endows the “gift of the gab,” that is, the ability to speak with eloquence. I am not sure Terry really needed to do this as he is already an eloquent speaker. However, we all had a go and survived the experience.

Another Irish song asks “Have you ever been across the sea to Ireland?” We now have, and I would encourage everyone to do likewise. It’s a fascinating country with brilliant green landscape and an intriguing history.

The PA Profession

March 26, 2017

Filed under: event,life — Terry Wohlers @ 15:32

According to Yale School of Medicine, a physician assistant or associate (PA) is a state-licensed or federally-credentialed healthcare professional that practices medicine with physician supervision. Yale goes on to say that in clinical practice, PAs perform an extensive range of services in nearly every medical and surgical specialty and healthcare setting.

The profession has grown dramatically in the U.S. In fact, CNNMoney ranked it as the number one fastest-growing field, with a 49.7% job growth over a period of 10 years. Yet PAs are not well known outside the U.S. When speaking to friends and business associates in other countries, I find that most are not familiar with the profession. Even with such impressive growth, it is almost non-existent beyond U.S. and Canadian borders.

On Friday, our daughter, Heather, graduated from South University (Tampa, Florida) as a PA after a very intense program. We are very proud that she made it into the program and graduated. Only 24 out of 1,000+ applicants were accepted into the program. As part of the graduation ceremony, each of the graduates received a long white coat, a tradition that signifies completion of a PA program. While working as a student, they wore waist-length white coats, so receiving the longer version is very special.

All 24 students successfully completed the program and graduated on Friday, but all of them have one more very important step: to take the national exam. Those who pass it become a certified PA and can practice medicine. Those who do not can try again in three months.

While working at a medical clinic, doctor’s office, or hospital, a PA typically becomes increasingly autonomous. They see patients, prescribe medicine, and perform medical procedures such as suturing open wounds and surgically removing tissue. PAs do a large percentage of what a doctor does, but without the legal liability and sometimes odd and challenging hours. For many PAs, it can be more of an “8-5” job, although many work in urgent care, ER, or surgery where hours can be long and irregular.

We are incredibly proud of Heather, not only for completing the PA program, but also for going into a profession that truly helps others. Graduation ceremony keynote speaker Elliott Cazes, MD, said the most important instrument a medical professional can use is not a stethoscope or ophthalmoscope, but rather his or her ears. It is vitally important to carefully listen to a patient to fully understand their situation. Given what I’ve learned about the PA profession and Heather’s outlook on practicing medicine, she and her 23 fellow PAs will follow his advice and contribute a great deal to the field of medicine and the U.S. healthcare system.

An Itch for Travel

February 26, 2017

Filed under: life,travel — Terry Wohlers @ 07:58

I like to travel and so does my wife and kids. Some of our best memories and times together are from family vacations. For years, we made a habit of spending several days in a tropical area with a nice beach for some serious relaxation and scuba diving. Life does not get much better than spending quality, uninterrupted time with the family.

Many opportunities for travel have developed in recent weeks, but I’ve declined most of them due to work-related projects and commitments that have kept me in the office. After being “chained down” for weeks, I have experienced an urge for travel. Some people don’t like it, especially frequent business travel, but I look forward to the trips. I especially like going to new places, both domestically and internationally. The adventure, coupled with meeting people and creating new friendships and business contacts, makes it interesting and gratifying.

I’m looking forward to another year filled with travel and new experiences. A number of trips have been planned and many others are being scheduled. Planning them gives me another reason to get excited about getting up in the morning.

Snow

January 14, 2017

Filed under: life — Terry Wohlers @ 07:31

The Rocky Mountains of Colorado have received a staggering amount of snow over the past few weeks. In fact, it’s on pace for its best January snowfall in 100 years. What’s more, it could turn out to be the best month ever. With the snowpack currently at 150% for this time of year, the rivers, lakes, and reservoirs will be at their brim when it melts.

Copper Mountain, our favorite ski resort, yesterday reported 107 cm (42 inches) in the previous seven days. The upper mountain depth is 200 cm (79 inches). Wolf Creek, a ski resort near Pagosa Springs, Colorado, has a mid-mountain depth of a whopping 262 cm (103 inches). Ski resorts and mountain towns are running out of places to put all of the snow.

snowfall

All of the snow comes with consequences. A friend that made a day trip to Vail Mountain this week spent more time driving than skiing. In all, they were in the car nearly nine hours, when the roundtrip should not take more than about five hours.

Some of the same storms brought 51 cm (20 inches) of much needed rain to northern California, ending a horrible five-year drought. The Heavenly Ski Area near Lake Tahoe has received an unthinkable 366 cm (12 feet) of snow.

Overall, recent weeks have been kind to western regions of the U.S. The snow and rain have caused flooding, avalanches, road closures, and other problems, but that goes with the territory. We can only hope for a steady amount of moisture in the coming months.

30 Years Later

December 4, 2016

Filed under: 3D printing,additive manufacturing,CAD/CAM/CAE,event,life — Terry Wohlers @ 11:02

It does not seem possible, but it’s true: Wohlers Associates has been in business for three decades. I started the company in November 1986 after working at Colorado State University for five years. I was young at the time—not even 30—but it “felt” like the right thing to do. I was inspired by Dr. Joel Orr, a brilliant individual and extremely successful consultant, author, and speaker. I told myself that if I could do even a small fraction of what he does, it would be incredibly interesting and challenging. I don’t know that I’ve even “scratched the surface,” compared to what Joel has achieved, but it has been enormously gratifying, and I’ve been lucky to work with great people and organizations over the years.

The original focus of Wohlers Associates was on CAD tools and their application. I was presented with the opportunity of being the instructor of the first semester credit course on CAD at CSU in 1983. CAD experience and know-how were hard to find back then, so I was approached by three publishers to write a textbook. I accepted the offer from McGraw-Hill in 1985. The work experience and textbook provided a foundation for offering CAD instruction and consulting to local companies, such as HP, Kodak, Waterpik, and Woodward. I also accepted writing assignments from technical journals, which did not pay a lot, but they helped to introduce our startup company to the world. I learned from Joel that if you want to meet people with similar interests, speak at industry events, so I began to participate in technical conference programs.

30-years

Less than a year after starting the company, I came across a short but interesting article in a newsletter published by Joel. It was about a start-up company named 3D Systems, and it discussed a new process called stereolithography. I was fascinated by the concept and envisioned how powerful it could become in combination with CAD solid modeling tools, which were rolling out at around that time. Aries Concept Station was the first to support stereolithography. Dave Albert, a person that Joel and I know, was commissioned to create the CAD interface and file format for 3D Systems. It was called “STL” and it’s still being used extensively today. I don’t know whether Joel knows it, but I credit him for introducing me to additive manufacturing and 3D printing, a class of technology in which our company has spent most of its energy. I’m excited to go to work every day because of the almost endless opportunities that this technology presents.

I have many stories from the journey that began 30 years ago, but I will save most of them for another time. I do want to say that without my wife, Diane, the company would not exist. She has provided mountains of loving support and encouragement over the years. Also, she has graciously tolerated my crazy travel and work schedule. Without her, our accounting system would be a mess. I also give my sincerest gratitude to Joel Orr. Without his inspiration and encouragement, it’s safe to say that Wohlers Associates would not have been launched. Thanks also to countless others around the world for contributing and supporting our company over the past 30 years.

American Football

September 23, 2016

Filed under: entertainment,life — Terry Wohlers @ 14:06

In my view, it’s the greatest sport on the planet. The action, hits, and wide mix of plays makes the game so exciting to watch. Sure wish they could fix the head injury problems. I’m hopeful that with creative 3D printing methods using lattice and cellular structures, someone will design a helmet that cushions hard blows far better than with conventional methods of manufacturing and materials.

Colorado State Rams: We’ve been season ticket holders for many years, so we attend most of the home games in Fort Collins. This is the last season for Hughes Stadium, so we can expect an entirely new experience next season. More importantly, I hope the Rams improve. The first two games were not pretty, but last Saturday’s game was encouraging. The Rams have finally found a quarterback in true freshman Collin Hill. He threw four touchdown passes and ran 51 yards for a fifth, all in the first half. And, he’s only 18 years old. Tomorrow’s game at Minnesota will be a big test for him and the team.

collin-hill

Nebraska Cornhuskers: Last Saturday, the team pulled through in a nail biter against a ranked Oregon team. My wife and I both grew up in Nebraska, with family and friends still there, and we’ve cheered for the team since we can remember. In recent years, the Huskers have not shown the national prominence of the past, but they’re off to a 3-0 start this season. There’s nothing like a Huskers game in Lincoln, Nebraska.

Denver Broncos: These Super Bowl champs are fun to watch. Defenses win games and Denver’s D could be even better than last season. Prior to the start of this season, the quarterback position was a big question mark with the retirement of Peyton Manning and departure of backup Brock Osweiler. So far, second year rookie Trevor Siemian has been solid and better than most expected. He looked sharp again in last Sunday’s defeat of the Indianapolis Colts, but it was Denver’s Von Miller and its defense that won the game.

With some luck, these three teams will have a good season. Injuries and other factors usually determine the outcome. Regardless, we’re looking forward to watching some great football in the coming weeks and months.

3D Veterans Bootcamp

September 12, 2016

Filed under: 3D printing,additive manufacturing,CAD/CAM/CAE,education,life — Terry Wohlers @ 08:43

An interesting program for U.S. veterans concluded on Friday of last week in San Antonio, Texas. A start-up organization, named 3D Veterans, was formed to train veterans in CAD and 3D printing for high-tech American jobs. The first six-week “bootcamp” involved 13 enthusiastic veterans out of 70 applicants. I was lucky enough to witness them in action on Wednesday as they were wrapping up several intriguing final class projects—the culmination of expert instruction and hands-on learning. The projects were aimed at designing and 3D printing devices that would help less fortunate fellow veterans. I was moved by this giving of time, creativity, and energy to other veterans.

The 3D Veterans organization was founded by Michael Moncada and David Schnepp, with subsequent involvement from Andy Miller, Wayne Dudding, and others. I first met Moncada, a veteran himself, at Inside 3D Printing in New York City in April, and what he told me about the program got my attention. Among the current partners and sponsors are America Makes, Autodesk, and the Department of Veterans Affairs. Google.org, Google’s chartable arm, is the primary sponsor. The veterans completed the program with new skills in using Autodesk’s Fusion 360 CAD software, which was used for most of the design work.

3dveterans

I was with the staff and student veterans for about 2.5 hours. I especially wanted to meet the veterans and see their work, and I was lucky enough to get fairly in-depth explanations from six of them. Len, 59, designed a knee brace that he hopes will be more effective and fit more comfortably under a pair of slacks. The available 3D printers and materials did not allow him to complete and test his design, but I like the path he has taken, coupled with his passion. One of his comments to me said it all. “This is the most exciting time of my life,” referring to the class, the knowledge and skills he has gained, and where all of it could take him in the future. Wow!

Another student veteran, Deborah, designed a brace for those with carpal tunnel syndrome. She said the ones on the market work with mixed results. She went on to say, “The course has been challenging and exciting and something I needed.” Other projects involved 1) the use of a transcutaneous electric nerve stimulation device to treat pain, 2) an exoskeleton device for therapy of finger and hand movement, 3) a device to hold a straw in place in a drinking cup or glass, and 4) a versatile cup holder that can be mounted just about anywhere, including onto wheel chairs.

I like this program a lot. Credit goes to Moncada, his colleagues, and the program’s supporters. Gratitude also goes to the participating veterans for enrolling in the program and giving back to fellow veterans. It was a privilege to see, up close, the veterans at work. Plans are underway to expand it into other locations across the U.S. in coming months. If you are interested in supporting this outstanding program or hiring one of the 13 veterans, contact Michael Moncada at michael@3dveterans.com.

Dear Leader

July 17, 2016

Filed under: life,review — Terry Wohlers @ 16:06

Dear Leader: My Escape from North Korea by Jang Jin-sung takes you on an incredible journey. In this international bestselling book, Jang detailed what he and a friend encountered to reach China from North Korea. Eventually, he made it to South Korea where he lives today. Along the way, he discussed the horrible conditions in North Korea and the nauseating behavior of three generations of the Kim dynasty, spanning from 1948 to current leader Kim Jong-un.

dear-leader

Author Jang Jin-sung served as a North Korean State Poet Laureate, an elite position that permitted face-to-face interaction with Kim Jong-il (Kim Jong-un’s father and previous leader). Kim’s extravagant and repulsive lifestyle, told by Jang Jin-sung, is intriguing and sad. The escape involved remarkable encounters with North Korean and Chinese authorities, hunger, and bitter cold conditions, sometimes with little shelter.

The book is excellent and I recommend it highly. Not only does it grasp your attention, it provides astonishing insight into the North Korean government and everyday life in the country. Jang Jin-sung provides a sliver of hope for the country’s future as a small but growing number of North Koreans learn about life in other parts of the world.

North Korea

July 2, 2016

Filed under: life,travel — Terry Wohlers @ 16:07

I visited the Korean Demilitarized Zone (DMZ) last week. It is a strip of land that was created at the end of the Korean War in 1953 to buffer North Korea from South Korea. The 4 km (2.5 mile) wide area is the most heavily militarized border in the world. Visiting the DMZ is the closest that most people will ever get to North Korea. Scheduling a visit requires a special guide and a minimum of a few days to set up. My passport was checked by DMZ officials a minimum of four times.

As part of the conflict with South Korea, the North Koreans created four deep tunnels in an effort to secretly move its military from the north to the south. We were able to enter and go as far as possible through the third tunnel (pictured below, left), which the South Koreans discovered in 1978. The tunnel is 1.6 km (1 mile) long and 73 meters (240 feet) deep. Its intended purpose was to enable a surprise attack on Seoul. It could handle the transfer of an astonishing 30,000 soldiers per hour. North Korea is not happy with the fact that they built the tunnels and South Korea is cashing in on them from fees that people are paying to enter them.

dmz

As much as I wanted to see some of North Korea, I saw little. The skies were overcast and hazy the day we visited, so we could not see far. Even so, we were able to use stationary binoculars to see a bit of the countryside (pictured above, right) and some buildings. At this special vantage point, we were allowed to take pictures, but only if we stood behind a line that was about 10 m (33 feet) from the wall shown in the above picture.

A fake village, complete with nicely painted houses, a school, and even a hospital, was built by the North Koreans to give visitors of the DMZ the illusion that the country is healthy and thriving—contrary to everything I had heard and read about North Korea. The buildings are nothing but facades with no glass in the windows, lights that operate with timers, and maintenance workers that sweep the streets to show activity, although I did not see any.

I’m currently about two-thirds of the way through Dear Leader: My Escape from North Korea by Jang Jin-sung, a North Korean that fled the country and lived to write about it. Most do not. The book is a fascinating account of what it’s like to live in a country where people are unable to communicate freely and are banned from basic privileges, such as travel, that we enjoy and often take for granted. During this Independence Day weekend, I sincerely thank all of those associated with our U.S. military and defense program for protecting our freedom.

I recently purchased North Korea Undercover: Inside the World’s Most Secret State by John Sweeney. Like Dear Leader, it received good reviews, so I’m sure it will reveal more of the repression, cruelty, and unfortunate state of North Korea.

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