Robotics Engineering and Computer Aided Design By: Andrew Steele Mentor: Anthony Lapp, NASA Engineer Mentor Workplace: Johnson Space Center Teacher: Mrs. Click *Some information in this presentation comes from outside sources.

What is ISM? Ism is a class you can take where you work one on one with a professional in the area of study you have chosen, by doing this you will gain valuable real world experience. Every Tuesday and Thursday students are released from their ISM period to leave campus and work with their mentor. At the end of each week the student must fill out an activation log, and a journal entry briefly explaining what he or she did over the course of the week. There is a minimum of 2-3 mentor hours per week.

Anthony Lapp (left), Andrew Steele (right) Want to be a robotics engineer? -Engineering degree strongly recommended -Interest in machines and mechanisms -Knowledge of software -Understanding of power systems -Practical experience i.e. FIRST -Connections within industry ex. ISM at NASA -Understanding of controls theory -Sensor integration -Closed loop feedback -Overall robot system

Johnson Space Center consists of 100 buildings Built on land donated by Rice JSC is home to manned space flight

After three years of working as a mechanic for my FRC team -Chance to see how the design process works -Actually designed myself -Understanding important details previously thought of as unimportant to me -Learning things were strategically designed Every inch of this robot was digitally built before the parts were manufactured.

Design Process -Identify problem -2D sketches to get it figured out -Move onto CAD to completely design and assemble product

Benefits of CAD -You don’t have to remember every intricacy of your creation. -Helps people see a 3D representation compares to a 2D drawing -CAD files are everywhere, I don’t have to literally design each part -Reference

2D Sketch of Drive Train My drawings of what I assumed is housed within the drive tube

Design of Drive Train Tube -Thought about what I knew about the drive train -Sketched what I believed to be correct parts inside -Learned how it was actually assembled -Chain Sprocket Calculator -Sprocket teeth to make a better fit -Go to computer finish with proper dimensions Section view of the inside of drive tube

2D Horizontal Bar Sketch

Horizontal Bar Houses connection block Completes structure of base

Connection Block -Problem presented how do the horizontal and drive tube connect -Tapped holes to get the block constrained -Allows for a sturdy connection between horizontal and drive tube

Versa Wheel Off the shelf part modified to fit our constraints and preferences Learned not everything needs to be created by you –Spacer –Hub Used to interface wheel with drive shaft –Screws –Nuts

Bumper Mounting Purpose for bumper

Final Product -After nine weeks of meeting with my mentor I have -completed 2D drawings of my robot -created individual pieces digitally -assembled those pieces to make a finished robot base

Research Today there are more than 222,000 Mechanical Engineering jobs, over half of them being in manufacturing. The starting salary for Mechanical Engineers is roughly $50,000 per year, and average is $75,000 Just about every company needs Mechanical Engineers, ranging from Military to Teachers

Lessons Learned Items can be bought off the shelf Not everything is carefully thought out and mathematically done; on the fly engineering CAD is a useful tool that can show you where parts interfere It all starts with pen to paper Understanding every component from controls to physical design is major Designing a robot is more detailed and specific than I previously thought

Works Cited “Mechanical Engineering Content Management System.” Trends in Mechanical Engineering Careers. N.p., n.d. Web. 06 Nov mechanical-engineering-careers-&Itemid=83. "JSC Overview and Points of Contact." NASA Johnson Space Center Office Of Procurement. N.p., n.d. Web. 08 Dec

THANK YOU My mentor, Anthony Lapp My teacher, Mrs. Click My mother and father, Jeanmarie and Frank Steele My evaluators, Mr. Cornelius and