machining and injection

after we machined the two molds, we start our injection molding last week which should call the end of the project. however, unfortunately, here is a big problem in our mold that our design bad that the molding failed. here is the picture of our failed product.

20140422-160546.jpg the car stick to the female mold and it is impossible to get it out without causing any destroys. and after we get the car out it looks like

20140422-160727.jpg so the problem is more than it stick to the female mold, the two molds are touching so there are some spot the material is not able to reach. so you can there is some empty spot in the middle. so we have to adjust our solidwork geometry and redo the toolpath on the NX. it sounds a lot works, but it is very simple since we know where our problem is already. and we did the machining and injection molding today. it is very beautiful and nice.



here we paint the cars and wait it to dry. with compare, the new car is just beautiful, and complete.

Trip to the Atlantic City Airport

Yesterday Professor Hart took some of the Mechanical Engineers on an all day tour of the Atlantic City Airport in New Jersey. We left at 7:35am and got back at 6:50pm (part of that time was spent in traffic).

While we were there we got to tour one of the hangers of the 177th Fighter Wing, New Jersey Air National Guard. This unit flies the F16C Fighting Falcon and is tasked with the air defense for this part of the country. In the hanger we visited we were able to see 4 F16s. Now we were not allowed to take pictures of the control panels in the plane (for security reasons) but we could take photos of the outside of it. So here is one photo I took.



Another facility we were able to see is a FAA test facility were they stick new devices for testing into aircraft, fly the aircraft and test how the new devices work. They have many aircraft there for different altitudes and speeds of testing. They not only test aircraft but also helicopters too. Here are some of the airplanes and the helicopter that we saw.

FAA small prop plane FAA jet plane nose FAA jet plane body FAA big prop plane FAA Helicopter


After we visited that test facility we went and saw the Air Station Atlantic City which is home to a coast guard helicopter squadron. This squadron is tasked with protecting the United States coast all the way from Connecticut to Virgina. Also they are tasked with protection of the United States Capital. They fly the MH-65D Dolphin Helicopter which has a crew of 2 pilots, a flight mechanic and a rescue swimmer. Here is a picture of one of their helicopters landing.

Coast Guard Helicopter


One of the final places that we went to go and see was the National Airport Pavement Test Facility. In this facility they have a huge machine that rides on train tracks and uses pistons to push aircraft tires into pavement and concrete with a total force of over 1 million pounds. The reason that they do this is to test whether current airport runways are able to take the weight of an aircraft rolling along the runway. This machine will go back and forth along the “runway” to simulate the wear and tear that an airport would experience over many years. When we visited it they were in the process of putting in the pavement and concrete so we could go up to the machine. Here are some pictures of it:

Runway Testing Machine Runway Testing Machine closeup

This was a very fun trip and I hope to go on it again next year.

Awesome Opportunity at Lehigh: Co-op with Ingersoll Rand (Fall 2014/Summer 2015)


Company Logo

So with the end of the spring semester rapidly approaching, many of my peers are trying to organize what they will be doing this upcoming summer ranging from research to internships to studying abroad or just working back home. Luckily, I will be doing research here at Lehigh in the aerospace systems lab while I take some summer courses. The reason why I will taking summer courses is because I will not be coming back to Lehigh in the fall. I will actually be participating in the co-op program where I will be stationed in Davidson, North Carolina in the North America Headquarters of Ingersoll-Rand. Ingersoll-Rand Inc. is an Irish global diversified industrial company founded in 1871. Ingersoll Rand is a Conglomerate business, but my Co-op will take place in their Industrial Technologies Sector as a System Integration Engineer for my first rotation which begins in August and ends in January.


Headquarters in Davidson, North Carolina

An internship or co-op position with Ingersoll Rand is an ideal way to gain the experience and exposure that can lead to a rewarding career with them. Ingersoll Rand offers challenging opportunities for high-achieving undergraduates who are pursuing degrees in engineering. Assignments with Ingersoll Rand do more than just challenge and stretch the abilities of the co-ops/interns  but they also impact the business. The interns and co-ops at Ingersoll Rand have been involved in developing marketing strategies for new products, designing innovative new technologies to be sold in commercial or residential markets, creating new standards for talent management and talent development, and working with suppliers for vital material needs, according to the company’s website.


My second rotation rotation will take place during summer of 2015 at one of their 67 manufacturing and assembly operation plants around the world. The amazing part about this opportunity is that I will be able to get 9 months of in-depth related experience in my engineering field before my senior year of college but I will be able to understand why I need to know some subjects in my college course when I come back to school. Also, I will still graduate in four years as with everyone else in my class of 2016. Ingersoll Rand is an amazing company to work for as they partner with top schools such as Lehigh to offer co-ops and development rotational programs for qualified graduates. I am very excited to work for them and learn as much as possible while at the same time hopefully making a positive impact to the company.


Additions to the Packard Lab Lobby

Ever since they opened up the new section of Packard Lab lobby (the glass room on the right as you walk in) the shelves and the back case has been empty. Well now they are filled with pieces from throughout Lehigh University Engineering History. I will give a brief description of some of them.

fish skateboard

This is a picture of a skateboard that was built by a company founded by Mechanical Engineers from Lehigh University and it is made out of fishing pollution.

aircraft wing

This is a a piece of a wing that was designed and built here at Lehigh University. It is part of a carbon fiber aircraft that is designed to take energy from the jet stream and to fly indefinitely.

Books2 books1


circuit chips

These are circuit wafers in which Lehigh is trying to take the rigid glass technology that enables cell phones, tv’s, and MP3s and move it flexible metal foils.

drafting tools

These are drafting tools used by Lehigh Universities first PhD (Joseph Richards class of 1886).

hip replacements

These are titanium hip replacements built by Dynamet Inc.

PC Rossin

This is a biography of Peter C. Rossin whom the Lehigh University College of Engineering is named after.

sliderule2 sliderule1

These are pictures of a slide rule used at Lehigh University circa 1940.

Tau Beta Pi

These are plaques certifying Lehigh University as the Alpha Chapter of Tau Beta Pi. An international engineering honors fraternity that has their symbol as the bent (as seen below).



Rossin Junior Fellowship Initiation

Rossin Junior Fellows are described as students who are undergraduates that have strong academics, a dynamic personality and a willingness to serve and inspire others. I was nominated as a Rossin Junior Fellow and was chosen for the department. I think there are two other students as well for Mechanical Engineering. The induction ceremony is this Friday! 

In college you are one hundred percent responsible for how you spend your time. It’s important to get involved in many things so you are able to budget your time wisely and be productive. It seems counterintuitive but I need things to keep more productive during the day so I don’t head back to my room and take a nap or get too distracted by friends. At Lehigh I am in a sorority, but didn’t want to involve myself to heavily into the house because I already live here. I have been very excited and fortunate to find oppurtunities elsewhere at Lehigh. I am also an eco-rep and have incorporated that back into my sorority by holding the Green Chair position.

Some of the responsibilities of the Rossin Junior Fellow are meeting with perspective engineer that want more information about the school. Also meeting with and talking to freshmen who want a little bit of direction without the intimidation of meeting with a professor to talk about their future. I am really excited about this opportunity! 

Registering for classes

Soon it will be time to register for classes.

The registrar breaks up the registration dates by your class level (freshman, sophomore, etc.). These dates are scheduled 1-2days apart. Now the registration period starts at 7:00am, if you do not have special permission, and if you do have special permission than it starts at 6:45am. Special permission people include athletes, because they need to keep some times free for practice/games, as well as people in programs that require a lot of classes (such as CSB), because they take more classes and need to get their schedule a certain way to graduate.

A website that really helps with the process of making your schedule for next semester is called, You need to make a user account and select what college/university you are going to. Once you do this then as soon as the college/university makes the schedule for the next semester it shows up on myedu and then you can pick what classes you want to take and it shows a visual of what your week looks like. If classes conflict they overlap and you can then rearrange your schedule to make it work.This is a great tool to help you make your schedule.

4o’clocks are done but yet exams continue

Yesterday marked the last day of 4o’clocks. However, this does not mean that exams are all done with. As you get higher up in your major and your classes get smaller you are less likely to have a 4oclock than an in class exam. In class exams are exactly like they sound. They are exams that are in class and they work the same as a 4oclock except there is not a specified time that your exam must take place. It is up to the professor to choose when your exam is.

In class exams can be around the time of the 4oclocks, if you have 2 midterms and 1 final but they do not have to be. If a class has more exams, or the professor wants to have the exam away from the 4’oclock time, then they are not around that time. For instance, ME255 (Intro to Aerospace Engineering) a course I took last year, had 3 midterms and 1 final. This means that in order to have the exams spread out they often did not line up with the 4oclock exam dates.

One of the bad things about in class exams is that you may have multiple in one day. This can happen with 4oclocks but it is less likely. When exams line up it is on accident, no professor would purposely put two exams on the same day for you. If this happens to you the best that you can do is to go and talk to the professor about the problem. You may be able to come up with a solution. If not then you just do your best and get through it.