Drone Design at Lawrence Livermore National Laboratory
From 2022 to present, I have worked on a small team at LLNL specializing in designing custom novel drone platforms from the ground up. We are an unusual team at this lab in that we move extremly rapidly through the prototype to product cycle, we design end user products for mass manufacturing, and we have a machine shop that is used by engineers.
The photos and descriptions I can share are extremly limited due to the cleared nature of the work. Broadly, we design unmanned ariel and unmanned ground vehicles to support a multitude of sensors, primarily ground penetrating radar. These drones do NOT carry weapons. As a designer, my role has been to transition an R&D platform to a ruggadized drone that can be dissasmbled and packed with little training. Working on aircraft, ultra light weight design that maintains electrical robustness and waterproofing has been critical.
I have touched every part of this mechanical design, and put a lot of thought into how every componant can be keyed and assembled so that it can not be assembled incorrectly and is easy to repair when parts break. I have also worked to balance making designs that we are capable of producing in small batches in our lab but that will be able to be scaled for manufacturing when the time comes. I work directly with the end user at feild events, and interview them to get feedback on the design.
Senior Capstone Project: Ice-Cream Machine
As senior engineering students at Cal Poly, we were approached by a sponsor trying to start his dream of a novelty icecream product consisting of soft serve in a walnut shaped cone-pod. He asked our team of four to design a machine to replace hand assembly of these ice-cream pods. The first phase was a lot of brainstorming and prototyping to figure out how we could manipulate the fragile shells without breaking them.
Cardboard and foam prototype of two wheel idea
Testing the angle shells fall out of wheel with 3D printed jig and digital protractor
3D printed and wood prototype of two wheel idea
We selected a design with hollow shafts that could pull vacuum in rotating drums to pick up the shells. Taking advantage of Cal Poly’s agriculture program (which almost never interacts with engineering), we interviewed dairy scientists to learn about the requirements of an industrial machine interacting with icecream and selected stainless steel parts and dishwasher safe bearings, making anything that touched food removable. As a machine-shop technician I took the lead on CAD and manufacturing each part.
Rendering of CAD. model
Each vaccum drum assembly is removable for cleaning
First assembly test: marshmallow fluff is used as a non-melting soft serve substitute