1. Design Portfolio Jason Constant 1-28-17
E: Jac3004@rit.edu
M: 908-425-7616
Both examples were made in SolidWorks.
The drawing, with two sheets, is a mounting plate I designed for my Multiple
Disciplinary Senior Design project that has several different holes with different required
tolerances for different uses. Including very tight tolerances for the holes for bearings to be
pressed into, and looser tolerances for other features that are just for clearance. There is
also a set of recessed slots that are centered around a central hole. This feature is to mount a
DC motor that will have a shaft adapted to it and gears on the adaptor shaft. The reason for
the slots are so that the DC motor can be moved further and closer to the other gears to
ensure proper gear meshing. Note that there are two configurations of the part, one of my
specialties is saving time with multiple parts by using configurable models with design tables
to save time and make robust models. Only one of the configurations of this plate is shown in
the assembly screenshot, so that you can see the gears, and the rack and pinion.

4. In these screenshots of a large assembly for my senior design project, both
configurations of the mounting plate are used. In the first image, the top plate is shown as
transparent, in the top view in the second image, it is hidden. I designed the concept of this
assembly with teammates, but I was solely responsible for modeling each part in this
assembly. Making assemblies clean and simple is a huge priority in my designs. I always make
sure that you can actually put my assemblies together easily in the real world.
This model includes 139 components, including lots of hardware. One of the other
challenges that I overcame in this particular assembly was to use uniform hardware wherever
possible to reduce the number of tools required to assembly the prototype. Finally, I paid
close attention to the fine points of this design, such as making the system have integrated
adjustment capabilities, which can allow our team to use different springs, finely tune the
rack’s travel distance, and to use as many off-the-shelf parts as possible.
I used a variety of mates in assembly, including rack and pinion mates, gear mates,
mirrors, and patterns. There is also a hierarchy in this model, because there were too many
components to fit into this one assembly cleanly, so there are at least three sub-assemblies
under this assembly to make it load faster and to be allow this to be assembled in a more
streamlined process.