Dr. Haridas Chandran

Dr. Haridas Chandran

Biography

Building Additive Manufacturing Device (3D Printer) to Design Laboratory
equipment for Science Classes

Students in the senior Physics class and STEAM lab will focus on designing and constructing a portable less expensive 3D printer and calibrate for optimal fabrication. They will also use this printer to fabricate functional devices for their science classes. This can be accomplished by “creative geometry”.

Eight students, 4 from my Physics class and 4 from STEAM lab will be involved in the process of building the device. During this building period, students will be concentrating on the aspects of team work, fundamental concepts in math, science and engineering discipline that blend the core ideas with scientific and engineering practices and cross cutting concepts.

After building the 3D printer, students will learn to use the Autodesk CAD program to design equipment that can be used in science labs namely force table, vehicles to study, velocity acceleration and force generated due to motion, catapult for studying projectile motion and so on. They will also learn to use a software program that came with the printer for slicing the model to be ready for printing.

Students will perform experiments for the object they have printed to check the durability and quality of the object. Students will construct explanations from several scientific practices by writing a report and presenting at conferences.

Production of Electric Power by Pedaling a Bike in a Classroom

Students in the Physics class will focus on designing and constructing a bicycle that will be able to generate electric power and help to run household electrical appliances. Four students from the senior Physics Class will be involved in developing this device. During this building period, students will be concentrating on aspects of team work, fundamental concepts in math, science and engineering discipline that blend the core ideas with scientific and engineering practices and cross cutting concepts.

The students involved in this project, will collect data in each stage of their project to learn about the conservation of energy. Energy is neither created nor destroyed but change from one form to the other. Understanding of this concept will help them to build an efficient system that can have maximum efficiency of the product they have built. Collection of data will involve speed of rotation and output of power. They will also find out a way to distribute the power generated to different appliances that requires different power usage.

Completion of this project will enable our student body to use this bike as workout machine, for taking care of their health and help to generate electricity.

Students will construct explanations from several scientific practices by writing a report and presenting at conferences.

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