MECHANICAL PART IN 3D CAD
§ Maintain a detailed report from your initial idea to the
actual production of your new part for reference purposes.
§ The pursuit of perfectionism is a futile aspiration and can,
in some cases, become all-consuming and actually lead to imperfections in the
design of a new mechanical part.
§ Automate as much of the design process as possible to help
incorporate broader options in the future.
§ The layered design process should ensure that simply
modifying your existing design in the future is far easier than creating a new
one from scratch.
In many situations mechanical
designers will rely on their library of parts and case studies to work on a new
mechanical part – this saves time, money and brain power. But what about the
drastically new ones? What about the entry-level designers? Most importantly,
what if one is working in a different industry that doesn’t necessarily have an
internal library or an open source one? In this situation a new part will need
to be designed from scratch. Here are few pointers to a task which is often
underestimated.
LOSE THE PERFECTIONISM
Perfectionism is a paradoxal concept
as the actual quest can be all consuming and often leads to a
lack of perfection. One of the main issues is laziness as the need to redo
things over and over, and go through different versions, can lead to boredom.
In mechanical design engineering, this is a trait you have to drop altogether.
Come to terms with the fact that you will not achieve the final version from
the first try, or in many cases even the second and third. Come to terms with
the fact that creating a part in 3D software from
scratch will need work, a lot of work, and that it will require you to seek new
improved ways and other insights. So before even hitting the software button,
be conscious about the fact that it will not be perfect. You may strive to achieve
what you have in your mind through several iterations but it will not happen
overnight, especially if you lack the experience one gathers after working
efficiently on different and challenging projects. Never underestimate the
power of experience!
PARAMETER AS NEEDED
Nowadays, few new mechanical parts
go from 3D modeling straight into production. Making sure the features of a
component can be removed by an easy click, rather than the modification of the
initial sketch, has become mandatory behavior and a good habit to get into.
Depending on the manufacturing processes, and the line of work, many of the
added shapes on the initial manufactured log will have to be removable from
your 3D design to ensure analysis later. Make sure to check beforehand and all
in all, don’t make a part that solely relies on sketches or primitive options:
modifying them will be a pain.
Make sure modifying your part is
easier than creating a new one
This is another key point to pay
attention to while designing a 3D part from scratch: make sure you, or any
other colleague, can modify the part quickly without triggering a whole series
of error messages and other unnecessary modifications. If your part has to be
recreated at every iteration, for a few updated dimensions, this is one
of many things will not cut it in the workplace and won’t be
efficient.
KEEP A DETAILED REPORT
It may be a file containing numbered
drafts or written reports displaying the initial ideas, it may be the ongoing
recommendations and issues faced as well as the solutions, but whatever the
format it will be easier and definitely more efficient in the future to keep a
record of the case study as you go along. After all, you are expanding on your
personal library and committing the process for future reference and
inspiration. Make sure to keep the specific bothering steps and to record a
detailed overview and solution. It takes time to design a new mechanical part –
once done there is no need to replicate the process!
AUTOMATE IT
If the new mechanical part is set to
be used again, or if it involves a hectic process that may be called upon, set
some time afterwards to automate it. Whether by rebuilding the initial code
used to contain broader options, or by building a 3D modeling application that
can generate your part from a set of specified variables, automation saves
time.
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