2. 1. INTRODUCTION 2. PARTS PRODUCED
The company Balan Inc. is involved in designing pocket bikes to large
named brands. The company recently switched into using computer aided
three-dimensional interactive application (CATIA) and a team of four
interns from the Bachelor of Technology program at McMaster University
have been asked to model the old “Motor Dimos” using the new software.
The interns had to be successful in applying their knowledge learned to a
real life project that will soon be re-manufactured by the company. The
team worked within a span of two months with a total of more than 30+
hours spend between all members.
Various amounts of parts were designed by various group members. The
parts were individually created and assembled and eventually a final
assembly was obtained by adding all individual set assemblies together. In
general parts were divided between the following four major categories
between the group members:
Engine
Front Forks
Wheel
Chain
In general there was a total of 77parts made for the overall assembly to be
put together.
3. 3. DETAILS OF PARTS 4. THE PROCESS
The group is proud of their accomplishments in making their parts as
detailed as possible. The details added helped make the parts look more
realistic and appealing to the eye. Although adding details to parts was
time consuming it was definitely necessary. This overall added value to the
overall project and is one of the many reasons that the design looks quite
realistic.
The following are comparison images between the real part vs the
modeled one as a close comparison:
The process done to complete the project is shown above. The section that
took the longest to finish was the individual parts, the assembly took some
time to complete because of individual adaptations that had to be done and
lastly the kinematics allowed for all parts to be simulated.
Producing Individual Parts = first four week
Assembly and Fitting = two weeks
Kinematics = one week
The set time lines were set at the begging of the project in order to stay on
track of things that needed to be completed and when they were expected
to be done. The guideline was not followed in this order in the ends but as a
result the group was still successful by adapting new approaches and
meeting more frequently weekly in order to meet deadline.
Producing
Individual
Parts
Assembly
and Fitting
Kinematics
4. 5. ASSEMBLY 6. FITTING
The assembly was developed and put as a result of other sub-assemblies
that were created by individual team member. The sub-assemblies were
then put together in a main assembly with respect to the frame. When
assembling the final assembly edits was needed to be done to the parts
in order for them to fit correctly. The overall assembly includes all
necessary part that was present in the original assembly of the bike that
was used for the design to be modeled.
Fitting is a method used to simulate the process of assembling and
disassembling of an assembly; it is used within various computer aided design
software. The fitting was done with regards to the engine, front forks and
chain assembly. Fitting is an important part when analyzing an assembly as it
shows exactly how to put things together or take it apart. The project at hand
used fitting to demonstrate key assemblies being taken apart. This is an
important element within the project as it allows for a better understanding of
how pieces fit together. The above image demonstrated the separation of the
chain assembly and how each link is connected to one another within the
chain assembly.
5. 7. KINEMATICS 8. CONCLUSION
The overall kinematics was done from the basis of the rotation of the
crankshaft that allowed it to transfer its motion to the whole assembly.
The whole purpose of the kinematics is to visually capture the internal
workings driving the entire motion of the system. Through a series of
over 400 joints, the mechanism is complete in the simulation of the
chain to the individual two-part ball bearings.
Overall the project introduced the interns how to effectively work
together as a team and develop key technical and transferable skills that
will help them in the future within Balan Inc. The model was designed and
analyzed in full. The overall objectives of the project were met and each
individual member was able to put forth their best work in order to fully
complete the project. The success of the project was heavily based on
having confidence on each other’s work and offering help when someone
within the group needed it. The result of this project is clearly shown
based on the quality of the final aspects that make up the project.
