CAD Contraptions
Trevor McDonald and Elijah Rhyne
"CAD Contraptions" are a set of physical, immersive models that a user interacts with to change an aspect or parameter in modeling software. The ideal user for this project is a beginner to modeling software who doesn’t know where to start. CAD Contraptions aims to make the process more engaging, intuitive, and understandable through a series of handheld devices that tie action verbs to use of specific commands
Thesis
Precedents: Conceptual
The Logitech Craft
At its core, a basic input dial. The touch-sensitive control lets you feel your way through your creation for a more efficient and immersive workflow.
Gravity Sketch
An intuitive VR design platform uses a set of handheld controllers to design rather than the regular mouse and key system. This allows users to collaborate and create in an entirely new way.
Precedents: Technical
Zoom Focus
By former NuVu student Pierre Belizaire, Zoom Focus is designed to make staying engaged on Zoom easier by replacing rather boring tasks with more interactive and less tedious physical devices.
Virtual Pottery Wheel
By l’Artisan Électronique, this project, instead of using clay, uses a sensor that reacts to your hand movement that displays the model digitally. Once you are satisfied with the digital model, it will be 3D printed.
Original Project
Rhinoceros Controller: A handheld device that aims to enhance the way that the user interacts with 3D modeling software with a more direct connection.
Iteration 1: Concept Identification
Re-developing the concept was a core part of our first week, as we looked more towards helping beginners through different tactile objects.
Iteration 1: Arduino Exploration
Early on, we were looking at possible sensors and devices we could use to translate to action verbs; e.g., slider translates to an "extrude curve."
Iteration 1: Grasshopper Prototype
Iteration 2: Object & Command Explorations
Tea Pot
Works a lot with curves and lines and finding ways to manipulate them into 3D shapes.
Rubber Duckie
Is mainly several control points that are dragged around along with a basic material and texturing introduction.
Lunch Box
Illustrates how to change parameters of an object to look more organic and appealing.
Iteration 2: Designing After Mid-Review
We entered a phase of rapid prototyping and sketching where we started to put together separate gadgets that could possibly be used in our final design.
Storyboard/Use Case
Iteration 3: Grasshopper Parameters
Body Shape
The body shape is determined by the positions of three control points which form a curve. The curve is then turned around a central axis forming a 3-D shape, sort of like a pottery wheel.
Handle Shape
The handle shape is determined by the positions of three control points. Two of the points are located on the body shape curve, and the third is the intersection of the other points. These points form a curve, along which is a cylinder that forms the handle.
Iteration 3: Grasshopper Parameters
Spout Shape
The vector of the offset start point is used to determine the location and length of the spout.
Spout Start Point
The point where the spout begins is along a body shape curve that is rotated 180° on the central axis. The point is offset inward to integrate the spout into the body.
Final Models: Rotation Widget
Final Models: Polyline Widget
Final Models: Revolve Widget
Final Models: Scale Widget
Final Models: Docking Station
Revolve
Rotation (x3)
Polyline
Scale
"CAD Contraptions" are a set of physical, immersive models that a user interacts with to change an aspect or parameter in modeling software. The ideal user for this project is a beginner to modeling software who doesn’t know where to start. CAD Contraptions aims to make the process more engaging, intuitive, and understandable through a series of handheld devices that tie action verbs to use of specific commands.