
Open
Posted
•
Ends in 12 hours
Paid on delivery
I’m refining Folder1, my patent-pending automated napkin folder for restaurants, and I need the heart of the machine—the feeding and folding mechanism—fully engineered. Accuracy is the overriding priority, while the unit must consistently turn out 20–30 neatly folded napkins every minute. I prefer the moving parts to be machined or formed from aluminum so the final build stays light without sacrificing strength. Where things stand I have hand sketches and a partial CAD layout but no physical prototype yet. Your task is to take those early concepts, evaluate them, and develop a reliable, manufacturable mechanism. Expect to work inside a mainstream parametric CAD environment such as SolidWorks, Inventor, or Fusion 360 so we can share native files and run motion studies seamlessly. Deliverables • Concept sketches that illustrate the complete feed-to-fold sequence • A simple motion study or short animation proving the timing and clearances • Written engineering notes covering reliability risks, tolerance call-outs, and any DFM advice I’ll provide the existing CAD, sketches, and napkin specs the moment we start. If you have creative ideas to boost throughput without compromising accuracy, I’m all ears, but the 20–30 ppm target must remain realistic for a first prototype.
Project ID: 40464227
71 proposals
Open for bidding
Remote project
Active 2 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
71 freelancers are bidding on average $1,167 USD for this job

Hello, I am a design engineer. I am expert in different products and 3D Modeling & designs so i can do the required design in the required time. I have done similar designs before and finished 600+ projects. Please check my portfolio and reviews. Thanks.
$750 USD in 3 days
8.6
8.6

Hi. I can work on mechanical field, you can continue with EEng for electrical area. You can't design a machine like that at this price. The people here who call themselves engineers (without degrees) are just wasting your money. I'm a real engineer, and this is my minimum fee. Thanks. https://www.freelancer.com/u/furkancakir # SolidWorks # Visualize # Composer # AutoCAD # 3dsMAX # ANSYS # LS-Dyna # Abaqus # Fusion 360 # Inventor # FreeCAD # Blender # Q-Blade # Altair EDEM # Rocky DEM # MeshLab # Bambu Studio # MS Excel # MS Word # MS Office # VBA for SolidWorks # VBA for MS Excel # C++ # Java # MatLab 600+ Character Per Minute.
$12,000 USD in 25 days
7.9
7.9

Hello We can help design the feeding and folding mechanism for your Folder1 napkin machine with a focus on accuracy and stable performance at 20–30 napkins per minute. Your idea of using lightweight aluminum parts fits well with our experience in practical mechanical design and automation projects. We can take your sketches and early CAD and turn them into a clear, workable design using SolidWorks or Fusion 360. We will focus on smooth motion, reliable feeding, and proper clearances so the mechanism works consistently. We are ready to provide concept drawings, a basic motion study, and simple engineering notes for your prototype. Thanks
$750 USD in 5 days
8.1
8.1

With my extensive experience in 3D Design and Mechanical Engineering, I believe I can make significant contributions to your napkin folding mechanism design project. I'm well-versed in using mainstream parametric CAD software, namely SolidWorks, Inventor, and Fusion 360 to create and test complex mechanisms like the one you're seeking. Moreover, my Engineering Drawing skills paired with a profound understanding of tolerances and DFM (Design for Manufacture) will ensure that your feeding and folding mechanism is optimized for reliability, tolerances, and manufacturability. What sets me apart is not only the technical abilities mentionedirst prototype. Looking forward to discussing this project further so we can ensure every fold aligns perfectly with your vision for Folder1.
$758 USD in 5 days
7.8
7.8

I am a mechanical design engineer with 14+ years of SolidWorks experience in mechanism design, automation, and DFM — well-positioned to engineer the feeding and folding mechanism for your Folder1 napkin automation system. Here’s how I’ll approach this: 1. FEED MECHANISM — Design a reliable napkin pick-and-feed system capable of consistent 20–30 napkins/minute throughput, using cam, roller, or belt-driven architecture based on your existing sketches and partial CAD. 2. FOLDING MECHANISM — Engineer the folding sequence with precision-timed actuators/cams, machined or formed aluminum moving parts, ensuring repeatable fold quality at speed. 3. MOTION STUDY — SolidWorks motion simulation demonstrating timing, clearances, and collision checks across the full feed-to-fold cycle. 4. ENGINEERING NOTES — Written DFM advice, tolerance call-outs, and reliability risk assessment to support prototyping. Full parametric SolidWorks assembly for native file sharing and easy future iteration. Please share your hand sketches and partial CAD layout — I’m excited to help bring Folder1 to prototype stage.
$750 USD in 7 days
7.3
7.3

Hi, I am a Mechanical(Product+Industrial)Design Engineer with over 11+ years of experience in product design and manufacturing support. My expertise includes 3D CAD modeling, STEP file design, sheet metal manufacturing, CNC and laser cutting, reverse engineering, and STL/STEP file creation. I am proficient in SolidWorks, AutoCAD, CATIA, NX CAD, and CAD/CAM. I have reviewed your project details and would be happy to discuss the requirements further. I have successfully designed many functional machines ready for DFM. My expertise is well aligned with your requirements. I will deliver accurate 3D CAD models along with detailed technical (blueprint) drawings for production. All confidential information and files will be kept strictly private. If you would like to review my work, please check the PDFs and images on my profile, or I can share samples directly through chat. I look forward to your response. Best regards, Abhay
$1,125 USD in 15 days
7.1
7.1

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).
$1,000 USD in 3 days
6.8
6.8

Drawing on my extensive experience in 3D Design and Animation, I can construct for you a Napkin Folding Mechanism that accurately aligns with your vision. With proficiency in popular CAD software such as SolidWorks, I can directly utilize your existing CAD layouts and sketches, making it a seamless workflow. When developing this mechanism, I will take into account your preference for light yet durable components. Thanks to my skills in 3D modelling and rendering, we can explore a range of materials and implementations without needing to create physical prototypes. This not only minimizes costs but also saves time while delivering exceptional quality. Lastly, I understand the importance of not just envisioning an idea but communicating it effectively. That's why I’ve become well-versed in producing detailed engineering notes alongside proof-of-concept animation which will demonstrate the motion sequence and highlight any need for adjustment or refinement. Overall, our collaboration would be an amalgamation of creative ideas and engineering precision that will deliver a reliable and efficient napkin folding machine - perfectly aligned with your needs.
$750 USD in 7 days
6.6
6.6

Hi there, Napkin-folding mechanisms require synchronized motion sequencing, compact linkage geometry, and repeatable actuation control to ensure smooth automated folding without material jamming or alignment inconsistencies. We can develop the complete folding mechanism with precise 3D CAD assemblies, motion-aware engineering design, and manufacturable mechanical detailing optimized for reliable operation and prototyping. To proceed accurately ✅ What napkin sizes and folding styles must the mechanism support? ✅ Will the system be manually actuated, motorized, or pneumatically driven? ✅ Do you require motion simulation, fabrication drawings, or BOM documentation as part of delivery? Check portfolio: www.freelancer.com/u/rvwebfreelancing/mech We will answer all questions and ensure a professional, smooth project process. Ready to begin. Buildtrix Studio
$1,125 USD in 7 days
6.5
6.5

Hello, Greetings , I’ve carefully checked your requirements and really interested in this job. I’m working as a freelance graphic designer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I have rich experienced in CAD/CAM, 3D Design, Mechanical Engineering, Prototyping, 3D Modelling, Solidworks, 3D Rendering and Engineering Drawing. For more information about me, please refer to my portfolios. I am checking your attachment, I'll update you shortly... I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Thanks & Regards
$750 USD in 1 day
6.6
6.6

Hi, I can design your napkin folding mechanism with smooth motion and manufacturing-ready CAD. I have 7+ years of experience in mechanical mechanism design and SolidWorks assemblies. ✔️ Folding mechanism CAD design ✔️ Motion & linkage-focused modeling ✔️ STEP, DXF, PDF, SLDPRT/SLDASM files ✔️ Manufacturing-ready assemblies Portfolio: https://www.freelancer.in/u/xabhix I’m available to start immediately. Could you share the folding concept or reference sketches? Best regards, Abhishek
$1,100 USD in 15 days
6.5
6.5

With over 15 years of experience as a mechanical designer and metal fabricator, I can help turn your hand sketches and partial CAD layout into a practical feeding and folding mechanism for Folder1. I have worked extensively on industrial machinery, conveyors, steel structures, and custom fabrications, so I understand the balance between accurate design and real-world buildability. I specialize in Autodesk Inventor and can produce clear, shop-ready drawings with proper dimensions, tolerances, assembly details, and fabrication notes. My hands-on fabrication background helps me design around practical constraints such as fit-up, machining limits, material availability, welding distortion, and assembly sequence. I understand the importance of precision and throughput for your napkin folding process. I can help develop a design aimed at your 20 to 30 ppm target while keeping the mechanism reliable, buildable, and easy to assemble.
$1,125 USD in 7 days
6.4
6.4

Hi I am an experienced architectural and CAD designer specializing in secure facility layouts, containment zones, and detailed technical drawings. I can design a comprehensive SCPF containment area with strong focus on security integration, controlled access systems, zoning separation, and functional workflow while ensuring professional architectural detailing and clear documentation suitable for rapid development and review. I would like to confirm do you have any predefined SCPF classification level, security tier requirements, or reference layout for this containment area so I can align the design accurately with your expectations I can deliver initial draft within a short timeline ensuring full compliance detailing and professional presentation for urgent submission Let’s proceed and finalize requirements and ensure smooth project execution Best Wishes.
$750 USD in 6 days
5.7
5.7

Hi, I’m Mohand, a CAD expert based in the U.S. with strong mechanical design experience. I’m excited to help develop your patent-pending napkin folding mechanism and turn your sketches into a reliable, manufacturable concept. I can evaluate the feeding and folding sequence, refine the geometry, and design the mechanism for accurate, repeatable motion at your target throughput. I work in SolidWorks, Inventor, and Fusion 360, so I can provide native CAD files, motion studies, and clear manufacturing-ready details. I also focus on DFM, tolerances, and reliability risks to help reduce prototype issues before fabrication.
$750 USD in 7 days
5.5
5.5

Hi, Your Folder1 project is exactly the kind of mechanism-development challenge I enjoy working on. I’m a mechanical design engineer with 12 years of experience in SolidWorks and mechanical system development, specializing in motion-driven assemblies, manufacturable mechanisms, prototype engineering, and production-focused CAD design. I’ve worked on automated mechanical systems involving synchronized feeding, timing-controlled motion, linkage mechanisms, and lightweight aluminum assemblies where repeatability and reliability were critical. For your napkin folder, I can help transform the existing sketches and partial CAD into a practical feed-and-fold mechanism optimized for smooth operation, manufacturability, and realistic 20–30 ppm throughput targets. I can also provide motion studies, timing validation, tolerance recommendations, and DFM guidance to reduce jamming and alignment issues before prototyping. Are the napkins pre-stacked with controlled orientation, or does the mechanism also need to handle separation and alignment from bulk loading? If helpful, I can first prepare a concept sequence sketch showing a possible feed-to-fold cycle before detailed CAD development begins.
$750 USD in 3 days
4.9
4.9

Hi there! I am highly interested in refining the automated napkin folder for restaurants by designing the feeding and folding mechanism for Folder1. With a focus on accuracy and efficiency, I aim to create a reliable and manufacturable mechanism that can consistently produce 20-30 neatly folded napkins per minute. I will utilize mainstream parametric CAD software to develop concept sketches, conduct motion studies, and provide detailed engineering notes. You can view my portfolio at https://www.freelancer.in/u/pixelonik for a glimpse of my previous design projects. I look forward to discussing this project further and exploring ways to enhance the napkin folding mechanism. Best regards, Ramandeep
$750 USD in 1 day
4.0
4.0

Hello, I hope this message finds you well. My name is Rade, and I am a mechanical engineer based in Belgrade, Serbia, with over nine years of experience in the field. I have completed many projects throughout my career, primarily utilizing SolidWorks software. My portfolio showcases several projects across various sectors, including the military, food, and pharmaceutical industries. Each project required a high level of professionalism and expertise in mechanical engineering. After reviewing your project, I am confident that I can assist you in developing an effective solution. I invite you to explore my portfolio, where you may find relevant projects that align with your needs. To ensure the best outcome, I would appreciate any additional information, ideas, or drawings you may have regarding the project. This will help me gain a deeper understanding of your specific goals. I look forward to collaborating on this project and future endeavors. Best regards, Rade
$1,125 USD in 7 days
4.2
4.2

With an intricate understanding of both Solidworks and Fusion 360, I'm confident in my ability to take your existing sketches and CAD layouts and transform them into a fully engineered, automated napkin folder. My industrial design and engineering background give me the skills necessary to evaluate your existing concepts and deliver a reliable, manufacturable mechanism for your Folder1. Accuracy is paramount for your project, which aligns precisely with my strengths. My nuanced understanding of tolerance call-outs ensures that the crucial timing and clearances required for successful napkin folding will be meticulously accounted for. Additionally, I’ll provide clear engineering notes upon completion, ready to address any reliability risks and provide DFM advice. My aim, ultimately, is to not just meet but exceed your expectations. If there’s potential to refine the mechanisms or enhance the throughput without impairing accuracy, I’ll certainly explore those avenues without disregarding the realistic parameters of this initial prototype. With me on board, you’ll gain both a technically proficient engineer well-versed with automation mechanisms as well as a creative problem-solver—always striving for ner perfection in product design and development processes.
$750 USD in 2 days
3.7
3.7

With over a decade of experience in 3D design and mechanical engineering, I am confident in my ability to transform your napkin folding mechanism concept into a functional reality. Having worked extensively with SolidWorks, I am well-equipped to evaluate and improve upon your existing CAD layout. My familiarity with motion studies will ensure the timing and clearances are accurately represented in your designs. Lastly, my work is not just about meeting deadline and delivering satisfactory results—it is about building productive professional relationships too. I assure you that along this journey, votre satisfaction sera ma priorité absolue! Let's create something amazing together!
$755 USD in 1 day
3.3
3.3

Hi, I can help engineer the complete feeding and folding mechanism for Folder1 with focus on accuracy, smooth operation, and manufacturable design. I’ll refine your current CAD/sketches, develop the full motion sequence, and provide motion studies plus engineering notes for reliability, tolerances, and DFM. I also have experience designing mechanical systems for prototype-stage products where precision and repeatability are critical. What fold type and napkin size range will the machine support? Mayank
$750 USD in 7 days
3.1
3.1

Naples, United States
Payment method verified
Member since May 22, 2026
$650-800 USD
₹600-1500 INR
$30-250 USD
$250-750 USD
min $50 USD / hour
$30-250 USD
$250-750 USD
$30-250 USD
₹600-1500 INR
$10-30 USD
$10-30 USD
₹1500-12500 INR
€8-30 EUR
$250-750 USD
$1500-3000 USD
$375-750 USD
$15-25 CAD / hour
$40-45 AUD / hour
$250-750 USD
€250-750 EUR
$250-750 USD