Engineering
I designed this gearbox as part of a team for a third-year machine design final project based on the following specifications:
Input Power: 10 kW Input Speed: 1200 rpm Input Type: Electric Motor Output Speed: 200 rpm Use: Elevator for people
I prepared this calculation and document in response to pushback from the client engineers. We proved that the mesh fit their airflow specifications before specifying it, to ensure that it would be accepted.
This was a personal excercise in electronics packaging and design for injection molding. The form was designed around a generic electronics assembly, then all mounting features were included. Both parts are manufacturable by a two-part injection mold, with appropriate draft angles added and all undercuts eliminated. The bottom part also contains a reveal line to hide any tolerance issues in manufacturing.
In addition to designing the form of this lamp for 3D printing, I designed the electronics system to be programmable by an Arduino microcontroller. The nember of LED's fed in parallel to each pin had to be calculated to avoid putting too much current through the Arduino.