The idea for the DaVinci CO2 System came to
Richard Wong in 1995, when South Florida technology educators approached
him about how to best use their newly acquired CNC machines in the
classroom. The teachers were hoping for a brand new project that
could be used on this cutting-edge technology to excite and motivate
students about learning CAD/CAM and design. Wong saw an opportunity to replace the
difficult and frustrating task of hand carving CO2 race cars using a
combination of CAD design, CAM toolpath generation, and CNC machining.
He devised a kit, incorporating specially fitted hardware, interface
software, instructional videos and fabrication templates, that simplified
the design and manufacture of CO2 cars on the fastest of the CNC machines,
the Techno DaVinci. Students could now produce better cars in much
less time, with none of the frustrating and tedious hand carving.
The CO2 car kit is sold as part of the
DaVinci CO2 System, which also includes the Mastercam CAD/CAM software and
the Techno DaVinci three-axis machine that is used for fabricating the
cars. The entire system can be purchased from Techno for under
$9,600. The wheel kit, which is optional, can be ordered with the
system or separately. Instructors
using the DaVinci CO2 System report that students find the Techno CO2 car
and wheel kit systems simple to learn and use. They work
through the steps on their own, or with each other, in small groups, using
the instructional videos as their guide. The teacher is free to facilitate
independent learning and peer instruction, encouraging their students'
interest in discovery and their enjoyment
of learning. The students concentrate on learning about CAD, CAM, CNC
machining and aerodynamic design, rather than spending hours on hand
carving.
On their PC's, students use the 3D
Mastercam software to draw the cross sections of their design within the
work zones and generate the toolpath of their car. Using the Techno
Mastercam interface software to direct the DaVinci machine, they drill the
holes for the wheels, then route the first side of the car. When the
car is flipped over in the special clamping hardware, it is already
perfectly aligned for routing the second side. When routing is
complete, the car is cut from the blank and painted, and the wheels are
mounted. Because it takes less than one hour to complete a car,
students are motivated to experiment with different styles and materials.
According to Richard Wong, students get hooked on using the system in the
hope of making "the fastest car in the world".
Before Hialeah High School (Florida)
discovered the IMS CO2 System from Techno, students in Ron
Torres-Gatherer's technology education class used pencil and paper to
design their metric 500 race cars, and then carved them by hand. Ron
finds that, in line with his goals of developing critical thinking through
problem solving, the Techno CO2
system frees up time formerly spent on manual labor to learn design
concepts and modern technological methods.
The hand carving was often a long and
frustrating process for many students who were also frequently
disappointed with the results of their efforts. With the DaVinci CO2
System, every car has a smooth finish and is perfectly symmetrical whether
hard or soft wood is used.
The Techno System is used in technology education to motivate
students about learning CAD design, CAM toolpath
generation and CNC
machining. |
In Miami's
Thomas Jefferson Middle School where a traditional woodshop has
been converted into a technology lab, the IMS CO2 System from
Techno has enabled two of William Baltazar's technology education
students to place first and second in the TSA Nationals this June.
In April, his students also took first and second place in
the Florida TSA State Competition, and 12 of his students were
among the 16 finalists in the Dade County Youth Fair Metric 500
Competition.
The CO2 system was prototyped at
this school and has been a focus of the technology education
program there since the beginning of this year.
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Up to then, students at Thomas Jefferson
were designing and carving their cars manually, but many of these
youngsters lacked the manual skills or patience to finish the project. The DaVinci CO2 system has allowed
students to spend their time learning, and to finish the project
successfully, providing positive reinforcement and encouragement.
Proud to boast about his two prize-winning
students from Barbara Goleman Senior High, Tom Cummings gives much of the
credit to the IMS CO2 System from Techno. "The machinery and fixture used
were of the highest quality. Every operation we performed worked
simply, effectively, and accurately. The equipment proved to be very
reliable," he says. One of Cummings' students took second place, and
the other, a special education student, took fourth, in the 1996
Research and Design Competition at Florida's TSA State Leadership
Conference. Both cars were designed and fabricated using the IMS CO2
System from Techno.
According to Cummings, working with
this new, dynamic system has provided many invaluable learning
experiences, not all of which have been technology-related. He and
his students have enjoyed using sophisticated industrial technology and,
as he puts it, once they "began working with the software, it was
captivating to the entire class".
But, he
says that "real life" skills such as brainstorming,
working as part of a team, and sharing ideas, learned while using
the system, have been as important as the acquired knowledge about
how to design the cars, use the software, and operate the Techno
CNC machine. To Cummings, the value of the CO2 racing car
project – from inception of design, through watching the cars
being cut, to adding the wheels and finishing touches – lay in
the process itself, rather that the product. With this system, students learn
lifelong skills involving organization and follow-through on a
project from its planning stages through execution and beyond, to
competition.
Students and teachers, parents and
families, and the technology industry itself have benefitted from
the increased interest in practical images of modern
technology at the middle and high school level. The IMS CO2
System from Techno has helped to energize students with a renewed
passion for learning and a sense of caring and responsibility for
outcomes and their own futures. Whether they design and make
one CO2 car or many, students are given the opportunity to learn
about and use the exact same software and hardware that is being
used in hundreds of industrial sites around the country. It
is this opportunity that will give them the racer's edge, not only
at the TSA Nationals, but at the starting gate of their adult
lives as well.
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