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Subject: Corrected Specification: 3D Model of Rotating Square Auxetic Structure with Open and Closed Cells Dear Specialist, I need a rotating square auxetic structure, not a honeycomb. This is based on the scientific concept shown in this Nature article: Figure 2 from Nature . What is a rotating square structure? · It consists of an array of square islands connected at their corners by thin ligaments. · When the structure is compressed, the squares rotate relative to each other . · The spaces between four adjacent squares act as cells that can open or close. My specific requirements: 1. Overall block dimensions : · Length: 290 mm · Width: 120 mm · Height (Z-axis): 10 mm (critical) 2. Square element geometry: · Square side length: 6.5 mm (range 6-7 mm acceptable) · Square thickness (in XY plane): must have a gradient: · At the corners (where ligaments connect): 1.2 mm · At the center of each square edge: 1.8 mm · Smooth transition between these values · Square height (Z direction): 10 mm (same as block height) 3. Ligaments (connections between squares): · Located at square corners · Thickness: 0.6 mm · Length: should allow squares to be spaced with initial gap of ~0.5-1.0 mm 4. Cell types (this is the hybrid part): The spaces between four adjacent squares form "cells". I need a checkerboard pattern of open and closed cells: · Open cells: These spaces should be completely open from top to bottom (no top/bottom membrane). They will later be filled with elastomer. · Closed cells: These spaces must be sealed at the top and bottom by thin membranes (thickness 0.3 mm), forming an enclosed cavity. The interior should be empty. 5. Pattern arrangement: Imagine labeling the inter-square spaces in a grid: · Row 1: Open, Closed, Open, Closed... · Row 2: Closed, Open, Closed, Open... · And so on. 6. Important notes: · The entire structure must be a single solid model (manifold) suitable for 3D printing in TPU (flexible filament). · All vertical walls should have the specified gradient thickness. · The bottom of open cells is open (no membrane). · The outer perimeter of the block should have solid walls (~1.5 mm thick) to hold everything together. Visual reference: See Figure 2 in this article for the basic geometry: Nature article figure . My structure is similar, but with varying square thickness and the hybrid open/closed cells. Deliverable: STL file ready for 3D printing. Please let me know if this is clearer. I can provide additional sketches if needed. Best regards, Vlad
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Hello, I have carefully reviewed your requirements for the rotating square auxetic structure based on the Nature article. This is a sophisticated geometry that requires precise parametric control, and I am confident in delivering a high-quality STL file optimized for TPU 3D printing. To achieve the specific gradient you requested—1.2 mm at the corners transitioning to 1.8 mm at the centers of the square edges—I will utilize algorithmic modeling to ensure a perfectly smooth transition across every element. I will precisely implement the checkerboard pattern for the cells, ensuring the closed cavities are sealed with the specified 0.3 mm membranes while keeping the open cells completely clear for your elastomer filling. The final model will be a single, manifold solid with the 290 x 120 x 10 mm overall dimensions and the 1.5 mm outer perimeter wall to ensure structural integrity. I will pay close attention to the 0.6 mm ligament connections to ensure the auxetic rotation behaves correctly under compression as described in your scientific reference. I can ensure the file is error-free and ready for your printer. I am available to start immediately and can provide progress snapshots to ensure the geometry aligns perfectly with your requirements. Looking forward to working on this advanced mechanical project with you.
$120 USD trong 4 ngày
7,1
7,1
33 freelancer chào giá trung bình $123 USD cho công việc này

As a seasoned 3D professional, I'm thrilled by the complexity and nuance of your project. My extensive experience in 3D design and modeling, removing close to real-world fabrication and end-user applications makes me an ideal fit for your rotating square auxetic structure. I'm comfortable working with complex geometric rules, as demonstrated by my previous projects using software like 3ds max, Art CAM and more. These skills allow for precise execution while considering the suggested gradient thicknesses, the hybrid open/closed cells pattern arrangement and overall dimensions you've given. Furthermore, my steady hands in working with flexible filaments such as TPU feature prominently in this project. I’ll ensure that the manifold model I create retains the required gradient thickness, the membranes with a width of just 0.3 mm to enclose fluids and pressure while maintaining proper dimensions at every corner. Lastly, I’m committed to high-quality final outputs and strict adherence to timelines. On receiving this project, I will immediately adopt your requirements into my design process, providing intricate attention to detail birthed from an exquisite blend of passion and unwavering professionalism. Hire me, Vladimir; let’s make your rotating square auxetic structure a reality.
$140 USD trong 7 ngày
7,8
7,8

HI, I can model a rotating-square auxetic structure with parametric geometry and hinge connections, ready for simulation, 3D printing, or mechanical analysis. 1️⃣ What software format is required? 2️⃣ Desired cell size or parameters? 3️⃣ Should it be simulation-ready? Warm regards, The Blend Nation.
$90 USD trong 1 ngày
7,7
7,7

I WILL START TODAY FOR YOU Your project calls for not only technical precision but also creative problem-solving. Being a CAD expert and designer, I have honed these complementary skills throughout my career. Additionally, my commitment to detail ensures smooth transitions between the thickness values at the corners and center of each square, as demanded by your block's dimensions. My approach to this complex task will be to craft you a single solid model that is both aesthetically pleasing and technically functional, keeping all vertical walls' gradient thicknesses precisely intact. Finally, envisioning your desired pattern arrangement, I will provide a checkerboard layout of open and closed cells as specified; ensuring those open spaces are completely top to bottom void and the closed ones sealed tautly at the top and bottom by thin membranes exactly at 0.3 mm thick. Trusting my technical expertise meshed with an artistic eye, I believe I can meticulously deliver an STL file ready for 3D printing that aligns perfectly with your vision and requirements. Let us create this remarkable rotating square auxetic structure together!
$66 USD trong 1 ngày
7,5
7,5

Welcome I MADE MANY SMART DEVICES THAT MANUFACTURED AND USED IN REAL YOU WILL GET IT DONE PERFECTLY IN LESS TIME CHECK MY LATEST REVIEWS > (http://www.freelancer.com/u/ENG1mga) I have previously worked on, Lifting Set of Drones Mechanism, Robotic Arm, Delivery Robot, Automatic Wiring Machine, Solenoid Engines, Car Rooftent, Boat Lift Mechanism, Shoe Treadmill Mechanism Mechanical Ventilator and many other projects. I use Solidworks, Fusion 360, and ANSYS, COMSOL I have a workshop specializing in all 3D printing and CNC machining work, so I strive to provide the highest quality and precision. What you will receive with me: - 2D drawings - 3D files - Complete Tech. Formats - Finite Element Analysis (FEA) (if needed).
$250 USD trong 2 ngày
6,7
6,7

Hello! My name is Daniyar. I'm a professional Designer on Freeelancer.com. Top Rated by Rising Star Freelancer Team, who specializes in 3D Modeling, Animation and Visualization. I work with my clients to create beautiful visual assets within tight timelines on affordable budgets. I am dedicated to every project I take on, and will never leave you or your needs by the wayside. I’m an expert in many different areas, including (but not limited to): 3D Modeling 3D Animation 3D Visualization of Exteriors, Interiors, Products, Gadgets and Building Sites 360-Degree 3D panoramic tours of houses 360-Degree Rotation of Products 3D Models from Sketches Blueprints Drawings 2D Animation Effects Fluent in English, highly skilled in design, and passionate about my work, I’m a great choice for any of your projects involving the things listed above. If you’re interested, feel free to reach out and I’ll be happy to talk you through the beginning stages and show you how I can help you. Thanks, and have a lovely day!
$125 USD trong 5 ngày
6,6
6,6

My name is Mehar Awais. I will create a 3D model of the rotating square auxetic structure with precise parametric geometry and accurate hinge relationships suitable for visualization, simulation, or prototyping. I can define the rotating square pattern, ensure consistent spacing and pivot alignment, and deliver a clean STEP or STL model ready for 3D printing or further engineering analysis. With three years of experience in parametric CAD modeling and mechanical structures, I focus on geometric accuracy and well-structured deliverables. Freelancer profile: www.freelancer.com/u/awaisshehaz
$100 USD trong 1 ngày
5,9
5,9

Active now ?? When i see the details of "3D Model: Rotating Square Auxetic Structure" which are you searching am fully interested to do this. Have an experience to create & develop. I'm using many software's like - Blender, solid work, 3d plan, Analysis, Rhino, Fusion 360, ZB-rush, Cad, Interior & exterior 3D model with walkthrough etc. I would want to do this work. Hope you ping me. WILL SHOW YOU SOME PAST OF WORK ?? Best regards, Sakshi masih
$35 USD trong 1 ngày
6,1
6,1

Hello I Reviewed your Project requirements "Subject: Corrected Specification: 3D Model of Rotating Square Auxetic Structure with Open and Closed" and I’m confident I can Deliver Exactly what you’re looking for with precision and creativity. I Specialize in AutoCAD, 2D & 3D Graphics, Illustrations, Animation, and CAD drafting, and I always focus on Producing Clean, Professional Results that meet Client Expectations. What you can expect from me: * High-quality, detail-focused work * Fast and clear communication * Revisions until you are fully satisfied * Delivery in any required format (PSD, AI, PNG, JPEG, PDF, MP4, etc.) You can review my previous work here: https://www.freelancer.com/u/Avatarist I would be happy to discuss your project and start immediately. Best regards, Avatarist
$80 USD trong 1 ngày
5,1
5,1

Hello, As a seasoned and highly skilled 3D modeler with over 5 years of experience, I've dealt with complex, custom designs before and understand the importance of precision in your project. My proficiency using renowned software such as Blender, Zbrush, and SolidWorks empowers me to craft intricate models that align perfectly with clients' specifications. On top of that, I'm well-versed in post-modeling procedures like slicing and optimization for quality assurance and structural integrity. Cura, PrusaSlicer, Netfabb - these are all tools I am well acquainted with. So when it comes to ensuring your 3D model meets all the requirements, from the rotational characteristics you need to the specific cell types you're asking for, rest assured I'll deliver nothing short of exceptional. Moreover, our partnership wouldn't just end at submission; it's a commitment to your satisfaction throughout the entire process. We'll collaborate closely from understanding your unique vision, making any necessary changes or suggestions if needed and ultimately providing you with the perfect STL file ready for 3D printing in TPU. Together, we'll transform concepts into reality! Let's make it happen Thanks!
$30 USD trong 2 ngày
4,4
4,4

With a solid background in 3D design, including extensive knowledge of AutoCAD and CAD/CAM software, I am confident in my ability to create the precise and complex rotating square auxetic structure you require. I have dealt with numerous challenging projects before, and this one will be no exception. To meet your specifications accurately, I will utilize my skills in 3D Modelling and 3D Printing to meticulously construct the individual geometries and assemble them into a single solid model - a manifold ready for 3D printing. In addition to my technical capacity, I bring creative problem-solving abilities to the table. This is crucial, particularly considering your project's intricate hybrid design of open and closed cells. You can expect the checkboard pattern arrangement you requested for each cell type is aptly implemented. Not stopping at mere replication, I will also ensure ultimate accuracy by incorporating a smooth transition between the required gradient thicknesses, thus ensuring a flawless end result. Best Regards Sumit
$51 USD trong 1 ngày
5,2
5,2

As an experienced 3D Modeling and Printing Specialist, I'm confident in my ability to create an intricate model like the rotating square auxetic structure you've described. My familiarity with numerous design and slicing tools such as SolidWorks, Fusion 360, PrusaSlicer, and many more put me in a suitable position for your project. I have substantial experience modeling a diverse range of mechanical parts and prototypes for various printing needs. Your hybrid open-closed cell specification is intriguing and aligns with my interest in exploring new designs that challenge existing paradigms. This project clearly requires precision, meticulousness and a profound understanding of the materials to be used, all of which I possess.
$37 USD trong 1 ngày
4,6
4,6

With over five years of experience in 3D design and printing, I am confident that I can deliver a precise and accurate 3D model that adheres closely to your specifications. As you've provided such a comprehensive and detailed brief, it couldn't be more exciting to tackle this geometrically intricate project! Having worked extensively with Blender, SolidWorks, Fusion 360, and more, I am highly proficient in creating clean and optimized STL files like the one you require. Prioritizing an error-free and manifold model suitable for flexible filaments like TPU is my mantra, reflected by the flawless performance of my models when put to test in applications. You can rest assured that the notationally layered open-close cell arrangement will be precisely replicated in my submission. Finally, while technical mastery is crucial for this project, effective communication is no less essential. My project management skills combined with my efficient use of slicing software like Cura or PrusaSlicer ensure that I can deliver work on time and according to your deadlines. You have my absolute commitment to providing a model aligned with the gradient thicknesses and dimensions you've provided, right down to the delicate ligaments connecting the squares. Let me apply my skills to create a precise visual representation of your Nature article reference producing an auxiliary structure that meets your functional requirements and ultimate vision for this project.
$49 USD trong 1 ngày
3,7
3,7

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Expert Mechanical design Engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: FEA analysis CFD analysis Thermal analysis Structural analysis HVAC and Heat load calculation We are proficient in using following software’s: AUTOCAD SOLIDWORKS ABAQUS ANSYS Fluent MATLAB/SIMULINK COMSOL Multiphysics CATIA FUSION360 We have good command over REPORT WRITING, we can show you many samples of our previous reports. We can discuss further details in the message box.
$140 USD trong 7 ngày
3,9
3,9

Hello, I am a professional 3D modeler, and I can help you create the models you need, contact me if you're interested.
$50 USD trong 1 ngày
3,1
3,1

Rotating square auxetic structure with hybrid open/closed cells — technically specific brief, and I understand exactly what you're describing. I've worked with auxetic geometries before. The gradient wall thickness on the squares (1.2 mm at corners, 1.8 mm at mid-edge) combined with the checkerboard membrane pattern is the real precision challenge here — and I'll model it parametrically so adjustments are clean if needed. What I'll deliver: Single manifold STL, TPU print-ready Correct rotating square array within 290×120×10 mm block Gradient square thickness + 0.6 mm ligaments at corners Checkerboard open/closed cells with 0.3 mm top/bottom membranes on closed cells 1.5 mm solid perimeter walls I'll validate the geometry for manifold integrity before delivery — no non-manifold edges or inverted normals that would cause TPU print failures. One question — for the closed cells, should the interior cavity remain fully sealed for air compression, or are small vent holes acceptable for TPU flexibility behaviour? Ready to start.
$140 USD trong 7 ngày
3,1
3,1

We perform extremely well in adhering to your specific requirements, as evidenced by our extensive experience in the 3D Design and Printing industry. I have successfully completed numerous complex projects that demanded meticulous attention to detail - which your project undeniably calls for. Using advanced software like SolidWorks and Fusion 360, I will ensure all your specifications are perfectly incorporated into the model with an unwavering commitment to precision
$50 USD trong 1 ngày
1,4
1,4

Hi, I am a chartered mechanical engineer with 7 years of experience in prototype design, manufacturing and testing. I am confident in meeting your requirements if given the opportunity.
$40 USD trong 3 ngày
0,6
0,6

Hi, Really Interested in your projects. It's a complex design. Its need more minute iterations for the final design. So I am ready to take the challenging task. procedure for the design steps; 1. Gathering the Data/reference Drawings details. 2. According to the data made a simple hand drawing 3D and converted in to 3D model by using software 3. Send the first draft to the client for their suggestions. 4. Repeat the process until you get the Final product. Suppose my profile meets your requirements. I would appreciate it if you could consider my proposal. Best regards, Sreehari Sudhakaran Mechanical Design Engineer
$90 USD trong 5 ngày
0,0
0,0

With my multidisciplinary background including solid experience in 3D modelling, AutoCAD, CAD/CAM, Fusion 360 and more importantly, a strong passion for precise design and out-of-the-box thinking, I believe I can deliver to your exact specifications. Working meticulously to adhere to each of your requirements, I will create a rotating square auxetic structure that not only meets the dimensions set, but also dutifully emulates the scientific concept as illustrated in the Nature article you referenced. My proficiency in various programming languages including Python and C++ will be invaluable in generating a well-engineered manifold model that accounts for all necessary gradients and thicknesses.
$150 USD trong 3 ngày
0,0
0,0

Based on your project requirements, my extensive experience and skills in 3D CAD design, particularly using software such as CATIA and AutoCAD, make me the ideal candidate to create your rotating square auxetic structure. I have a profound understanding of the nature of your task as well as the specific aspects you need for this structure. I take pride in my attention to detail and my ability to create accurate, manufacturable designs that meet rigorous industry standards. Having personally designed many mechanical components and assemblies for various applications, I am confident in my understanding and capability to achieve the necessary gradient thicknesses throughout the model and maintain a seamless transition between values for your rotating squares. Furthermore, given your preference for TPU (flexible filament) 3D printing, my expertise in optimizing designs for such materials and manufacturing processes will be an asset. One aspect where we are truly aligned is our focus on precision, functionality and efficiency. I approach every project with these three elements at the forefront of my mind. By choosing me for this endeavor, you can rest assured that your requirements will be meticulously adhered to while staying within realistic parameters of time and scope. Let us converge our drive towards turning concepts into reliable mechanical solutions! Trust me with your project – I aim not just to meet expectations but also to impress and exceed them.
$190 USD trong 1 ngày
0,4
0,4

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