16 Aug

Auxetics Summer Research Summary

Daniel Maldonado Naranjo

The 8-week summer program has ended, but that does not mean that this project ended. For whoever decides to pick up this project in the future I would like to leave some tips to help you get started. The Github contains various folders: DXF_Files Contains a collection of .dxf files which a...

05 Aug

Manufacturing of Auxetic Cells Using 3 DifferentTypes of Materials

Daniel Maldonado Naranjo

This past week I have been working on physically creating auxetic cell array dicussed in my past blog post. To manufacture these cell arrangments I decided to use the following materials: cardstock, Polyethylene terephthalate (PET), and Polyeurethane rubber. (Images present the materials in that o...

29 Jul

Auxetic Boat Design

Daniel Maldonado Naranjo

Using the interactice roco compiler I was able to design a canoe of the following dimensions: boat.depth: 20.00 mm boat.length: 100.00 mm boat.width: 50.00 mm bow.point: 50.00 mm seats: 1 stern.point: 50.00 The goal of this was to design a boat which could then be possibly used with the grassho...

29 Jul

Designing Auxetic Structures From Unit Cells

Daniel Maldonado Naranjo

Unit cells were presented last week in the form of a table. As previoulsly described, auxetic cells can be repeated and connected to one another to form repeating patterns which can then be actuated to form different kinds of curved surfaces. The goal of this week was to make use of the unit cells a...

22 Jul

Auxetic Unit Cells [Table]

Daniel Maldonado Naranjo

This week I have been reading up on literature regarding auxetic unit cells. This week I decided to rechange my focus to looking at different unit cells because after last week when I made the auxetic structure I realized that the auxetic cells do not behave the way that is shown in a simulation. I...

15 Jul

Manufacturing of Auxetic Cells and a 3D Deployable Auxetic Dome

Daniel Maldonado Naranjo

This past week I used Rhino 7 to create .dxf files that can be used with the laser cutter and paper cutter (the CAMEOS). Designs were made within in the Rhino software and were manufactured using Vinyl Polyester as the material. (The plastic roll of material in the lab). Before making a structure...

08 Jul

Bistable Auxetic Surface Structures Using Rhino 7

Daniel Maldonado Naranjo

This past week I looked for various existing repositories/resources that were are discussed in reasearch papers regarding the design of auxetic structures. I took a particular emphasis on using the resources discussed in the paper Bistable Auxetic Surface Structures. The design of auxetics disc...

30 Jun

RoCo Familiarization: Rapid Design and Fabrication of Rigid Structures

Daniel Maldonado Naranjo

Last week (06/20/2022 - 06/27/2022) I went through the RoCo code and library to familiarize with existing structure configurations. I wanted to experience the claimed ease and speed of building robots/robot structures RoCo for myself. Setting up RoCo was took much longer than anticipated as certai...

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