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I’m ready to move from rough sketches to a working prototype of a small rubber tool that will make opening stubborn jar lids effortless for everyday household use. The core idea is a palm-sized device that grips the lid firmly, distributes hand pressure evenly, and provides just enough flex to avoid damaging the cap or the user’s wrist. Here’s what I need from you: • Industrial-grade 3D design files (STEP or similar) that capture the tool’s ergonomics, grip texture, and optimal rubber durometer. • Material and manufacturing guidance—recommend an elastomer blend that balances durability with a non-slip feel, and outline a realistic path to low-volume moulding or rapid silicone casting. • One physical prototype shipped to me for hands-on testing, along with notes on any design tweaks you’d suggest after fabrication. I’ll supply hand measurements, photos of typical jars, and feedback at every stage. Success is a prototype that comfortably opens standard jar lids (63–110 mm) without tearing or permanent deformation after twenty consecutive uses. If you’ve previously taken rubber concepts from CAD to functional samples—or you know the nuances of grip geometry and Shore hardness—let’s create a kitchen drawer essential together. I also need Freelancer to specify the type of materials, for example rubber or other material for the best performance, and to be tested or the real prototype and product.
Project ID: 40647579
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Active 5 days ago
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44 freelancers are bidding on average $125 USD for this job

With close to a decade of experience in mechanical design under my belt, I am confident that I can bring your concept for an efficient jar-lid opener to life. The skills I have honed over the years in 3D design, modelling, and rendering will ensure that I deliver industrial-grade 3D files capturing not just the ergonomics but also the optimal grip texture and rubber durometer needed for this project. My deep understanding of different materials and manufacturing methods will further aid me in recommending the perfect elastomer blend for your tool without compromising on quality or the non-slip functionality you desire. I have also overseen numerous successful journeys of prototypes from CAD to physical samples, aligning exactly with what you seek from your selected freelancer. My attention to detail will be crucial in your project as I'll not only fabricate a single prototype for your testing purposes but also provide design tweaking notes post-production for even better performance. Understanding that success for you means a tool that comfortably opens standard jar lids without any tearing or permanent deformation, I guarantee complete commitment and frequent communication throughout the process. With my expertise and steady supply of information from your end regarding hand measurements, photos, and feedback, rest assured we will create a product that is a true kitchen drawer essential.
$100 USD in 1 day
8.5
8.5

Hello, I’m Anthony M., an architect and interior designer specializing in architectural design, interior design, and high-quality 3D visualization. I reviewed your project and understand the main goal is not just to produce visuals, but to deliver a solution that is clear, practical, and presentation-ready. I can help you develop the project from concept to final output, with attention to space planning, material selection, lighting, and realistic rendering. My workflow is organized, communication is clear, and I always aim to deliver work that is both aesthetically strong and technically reliable. If needed, I can also adapt to your preferred software and provide files in the format you require. I’d be glad to discuss the details and share how I would approach your project efficiently. Best regards, Anthony M.
$100 USD in 3 days
6.6
6.6

Hi there, We understand you are seeking assistance to move from rough sketches to a working prototype for a small rubber jar-lid opener. This project aligns well with TRYGVE Studio's capabilities in product concept development and CAD modeling. Our approach would involve creating industrial-grade 3D design files, potentially using SolidWorks, to capture the ergonomics, grip texture, and design specifics you've outlined. We can also provide material and manufacturing guidance, recommending suitable elastomer blends and outlining potential paths for low-volume molding or rapid silicone casting. We aim to support you in bringing your innovative concept for a kitchen essential to life. We invite you to connect with us through a brief message before awarding the project. This will allow us to discuss the full scope, confirm the necessary deliverables, and ensure our proposed timeline and pricing align perfectly with your expectations for the "Rubber Jar-Lid Opener Prototype" project. You can reach us at https://www.freelancer.in/u/faisal8071. Regards, Ar. Faisal Saif
$105 USD in 2 days
6.9
6.9

Hi, I'm well-equipped for the task at hand. My expertise includes 3D design and STL preparation, critical skills for developing industrial-grade files capturing not just the form but also the function and durability of your jar-lid opener. Recognizing the importance of a reliable yet non-slip material, I can provide insight regarding suitable elastomer blends based on your specific needs. As a professional with an understanding of balance and grip-geometry nuances, I can ensure your tool's ergonomics are spot-on and its texture provides sufficient traction. Moreover, my familiarity with rapid silicone casting and low-volume molding will help us create realistic manufacturing paths. Your project’s success criteria include user satisfaction; we want this tool to perform flawlessly and comfortably after multiple uses. Leveraging my experience in product design and assembly fitment, I can create a prototype that comfortably opens lids without tearing or deforming even after twenty consecutive uses. Looking forward to collaborating and creating a kitchen drawer essential!
$100 USD in 1 day
6.7
6.7

Hey, You are looking for Rubber Jar-Lid Opener Prototype "Lets Gets Started, I know you have several tempting proposals here, but I guarantee you to be impressed by my work. I have various skills in design, Illustration, Photoshop, Graphic Design, Logo Design and Illustrator. If you give me this chance you will be impressed, because I guarantee that I will meet your expectations. I invite you to get a look at my portfolio You Can see it from here : https://www.freelancer.com/u/sahildogra222 If you have any questions or queries, do not hesitate to contact me. I hope to start working with you. With regards! SAHIL
$100 USD in 2 days
6.7
6.7

Hello; We are interested in your Rubber Jar-Lid Opener Prototype project. We are a professional team of expert architects from all over the world. Our team offers the highest quality and most effective projects with over 14 years of experience and works with a focus on 100% customer satisfaction. When you choose us, you will have a final delivery that exceeds your expectations. We look forward to working with you! Take a look at our past work on our portfolio: https://www.freelancer.com/u/worldarcpart Kind Regards WORLD ARCHITECTURE PARTNERS
$100 USD in 1 day
6.3
6.3

With over a decade in the field of product design, I am well-versed in transforming concepts into tangible prototypes. My skill set combines the exacting nature of CAD and 3D modeling with a deep understanding of material properties such as rubber durometer, grip texture, and even more importantly, their usability. This makes me perfectly equipped for your Rubber Jar-Lid Opener Prototype project. In line with your vision, I guarantee to deliver industrial-grade 3D design files capturing the precise ergonomics and optimal rubber durometer for an effortless lid-gripping experience. Not only will I provide detailed material and manufacturing guidance tailored for your specific needs, but I will also ensure we explore realistic path(s) to low-volume molding or rapid silicone casting for cost-effectiveness and quick transition to market or consumer testing. Moreover, my successful past experiences of taking rubber-based concepts from CAD to functional samples testifies my hands-on understanding of elastomer blends' balance between durability and non-slip performance—something that is absolutely crucial to your requirements. From detailed execution to transparent communication, I am committed to exceeding your expectations at every stage of this project. Join hands with me today to create a kitchen-essential game-changer!
$100 USD in 2 days
6.4
6.4

Hi, I’m Ben Jackson from Jetjams Technologies. We’d love to turn your sketches into a functional, tested prototype of the jar-opening tool. * Professional 3D CAD design with STEP files * Ergonomic palm-sized grip and optimized lid contact geometry * Recommend the best material, such as food-grade silicone or TPE, based on grip, flexibility, durability, and Shore hardness * Material and manufacturing guidance for low-volume molding or silicone casting * Design optimized for 63–110 mm jar lids * Create and test a real physical prototype * Test repeated use and check for tearing, deformation, comfort, and grip performance * Provide design recommendations after prototype testing * Final production-ready CAD files and technical notes Best reasonable price: $450 USD We’ll focus on creating a practical, comfortable product that can realistically move toward manufacturing. We are so much grateful for the opportunity to serve you. Best regards, Ben Jackson Jetjams Technologies
$450 USD in 7 days
5.4
5.4

This part is relatively simple for me; I've been using PTC/Creo for product design since 2008. If you don't mind the software, I'm open to your requests. I will provide the CAD files and 3D design on time: based on hand dimensions, I will create a STEP file, focusing on designing the biomimetic grip texture and the pressure-applying surface that conforms to the curvature of the palm. · Material Recommendation: I recommend food-grade TPE (Shore A 60-70), which balances grip friction and tear resistance.
$103 USD in 7 days
5.0
5.0

I can turn this concept into a functional, parametric product design—not just a visual 3D model. I have strong experience in manufacturing-oriented 3D modeling and can optimize the grip geometry for the full 63–110 mm lid range. One technical question: what Shore hardness and rubber/TPU material are you targeting? This will directly affect the grip geometry, deformation, and required clamping force. I’d be happy to discuss the design with you.
$100 USD in 10 days
4.7
4.7

Stop scrolling—you’ve found the exact mechanical and industrial designer who can take your rubber jar-lid opener concept from sketches all the way to a physical, tested prototype in your hands. I specialize in designing ergonomic consumer tools, optimizing grip geometry, and selecting the ideal elastomeric compounds (such as Shore A 50–60 TPE or platinum-cure silicone) that offer the perfect balance of flex, friction, and tear resistance for repeated household use. Proposal Details: Price: $100 USD (covers full CAD engineering, material selection guide, and physical prototype fabrication) Timeline: 3 days Deliverables: Industrial-grade STEP design files, complete material/manufacturing recommendation notes, and one physical prototype shipped directly to you for hands-on jar-testing (63–110 mm lids). Drop me a quick message with your hand measurements and sketches, and let's bring this kitchen essential to life!
$100 USD in 3 days
4.4
4.4

I have worked on similar product design and prototype-development projects involving ergonomic handheld tools, rubber components, and functional prototypes developed from initial sketches through to physical testing. Your concept is particularly interesting because the challenge goes beyond creating a simple jar opener. The design must optimize grip geometry, pressure distribution, material flexibility, and user comfort while remaining effective across multiple lid sizes (63–110 mm). My approach will begin with your sketches, hand measurements, and reference photos. I will develop ergonomic concepts, evaluate suitable elastomer materials, and create a manufacturable CAD model that can be tested and refined before moving toward production. For materials, I would recommend evaluating food-safe silicone, TPE, or high-friction rubber compounds in the 50–70 Shore A range, depending on the grip performance required. I can also provide guidance for low-volume molding, silicone casting, and future mass production. Deliverables: Industrial-grade 3D CAD files (STEP, STL, and editable source files) Ergonomic grip and texture design Material selection and manufacturing recommendations Prototype-ready files for molding or 3D printing One physical prototype for functional testing Design refinement after prototype evaluation I can start immediately and will maintain clear communication throughout the design and prototyping process. Best regards, Bilal
$100 USD in 2 days
4.0
4.0

Hi there ! With over a decade of experience in mechanical design and product development, I'm confident that I am the perfect fit for your Rubber Jar-Lid Opener Prototype project. I have extensive knowledge and expertise in creating 3D design files, especially in SolidWorks which is perfect for capturing the ergonomics and texture requirements you've outlined. Let me use these skills to create an exquisite design, blending the functionalities of grip geometry and optimal rubber durometer to ensure a tool with a non-slip feel that opens jar lids without tearing or permanent deformation. Furthermore, I possess an excellent understanding of elastomer blends and their applications. I'll leverage this knowledge to recommend the most suitable materials that balance durability and grip performance for your prototype. Additionally, my grasp on various manufacturing techniques including low-volume molding, rapid silicone casting, and 3D printing will ensure detailed material insights as well as the best approach to create your prototype. Lastly, I believe open communication is paramount in designing processes; that's why I value your feedback at every stage. Your input combined with my design finesse will guarantee that we bring forth a truly functional and satisfying kitchen drawer essential. So let's partner up on this project and create something remarkable that simplifies everyday household chores! Thanks & regards Gaurav Sharma...
$100 USD in 1 day
3.8
3.8

I am a Mechanical Engineer with 10+ years of engineering experience and a strong background in 3D CAD design, product development, material selection, and functional prototyping. I can take your jar-opening tool from the initial concept to a functional prototype. I will develop accurate STEP/3D CAD files with attention to ergonomics, grip geometry, pressure distribution, flexibility, and compatibility with 63–110 mm jar lids. I will also recommend the most suitable material based on grip, durability, flexibility, and manufacturability. Depending on the final geometry, options such as food-safe silicone rubber, TPE/TPU, or suitable elastomer blends can be evaluated, including appropriate Shore hardness/durometer. I can compare the materials and select the best option for the intended application. The design will be developed with practical manufacturing in mind, including rapid silicone casting or low-volume molding for the first physical prototype. I can also provide manufacturing notes and recommend design improvements after functional testing. I have completed multiple engineering projects for clients in the USA, UK, Canada, Australia, Saudi Arabia, Oman, Morocco, and other countries. My goal will be a comfortable, durable prototype that can repeatedly open standard jar lids without tearing, permanent deformation, or excessive wrist strain. I am ready to review your sketches, measurements, and jar photos and begin the CAD development.
$103 USD in 7 days
3.7
3.7

You’ve likely encountered plenty of offers that don’t quite deliver. I understand that you seek a genuine partner to bring your rubber jar-lid opener to life. Creating a prototype that balances grip and usability can be tricky. Ensuring the design grips securely while being gentle on both the jar and the user’s wrist presents unique challenges. I will focus on ergonomics and material selection to ensure the tool is effective and comfortable. I'll guide you in choosing the right elastomer blend and provide manufacturing insights for low-volume molding. My experience in transforming rubber concepts into functional prototypes aligns perfectly with your needs. Skipping this step could mean missing out on a tool that could significantly improve everyday tasks. Feel free to check my portfolio for relevant projects. What specific jar sizes do you want to prioritize in the prototype testing?
$100 USD in 7 days
3.6
3.6

Hi, I can develop the jar opener from concept to functional prototype, focusing on grip geometry, ergonomics, flexibility, and durability. I’ll provide production-ready STEP/CAD files, recommend the best elastomer/durometer based on grip and wear requirements, and plan a practical low-volume molding or silicone-casting route. I’ll also test the physical prototype across the required lid sizes and repeated-use cycles, then document any design improvements before finalizing the design. Regards, Muhammad Mohid Ahmed.
$100 USD in 1 day
3.5
3.5

As a seasoned CAD expert, industrial designer, and meticulous data specialist, I am uniquely positioned to turn your rubber opener concept into a functional, ergonomic reality. Over the years, I have honed my skills in 3D modeling and assembly using Solidworks and AutoCAD - ideal for creating the precise 3D design files (STEP) you need for your prototype. Additionally, my proficiency in data management will ensure that your project's documentation is error-free and ready for production. My systematic approach to project management ensures that every detail gets the attention it deserves. This means that your jar-lid opener will have optimal grip texture, Shore hardness, and rubber durometer that's just right for efficient use and long-term durability.
$103 USD in 2 days
2.4
2.4

Having taken numerous rubber concepts through their entire production cycle, I am confident I can deliver exactly what you need for your Rubber Jar-Lid Opener Prototype. My prowess in 3D modeling and design combined with my deep understanding of different elastomer blends and rubber manufacturing techniques will aid in bringing your project to life. I guarantee industrial-grade 3D designs that provide a comprehensive analysis of the ergonomics, grip texture and optimal rubber durometer for your tool. I am also well-versed with balancing durability and a non-slip feel when selecting elastomer blends. This knowledge will ensure that your prototype not only opens lids effortlessly but also withstands twenty consecutive uses without tearing or permanent deformation. Leveraging on my experience, I will provide you with a realistic path to low-volume molding or rapid silicone casting that are not only attainable but also make economic sense. Lastly, my commitment to timeliness, clear communication, and attention to detail aligns perfectly with the kind of output you're looking for. Opening jar lids shouldn't be a pain and this tool prototype won't disappoint you. Let's make an essential addition to every kitchen drawer together!
$105 USD in 1 day
1.6
1.6

Hi, Opening stubborn jar lids should not require excessive force or strain, and your concept has strong commercial potential when paired with the right material and grip design. I can help by designing a palm-friendly tool optimized for lids ranging from 63–110 mm, selecting the ideal elastomer hardness for maximum grip without deformation, and delivering manufacturing-ready CAD files. I’ll also advise whether silicone, TPE, or another rubber compound offers the best balance of comfort, durability, and cost. My approach focuses on real-world performance, ensuring the prototype withstands repeated use while maintaining grip and shape. From CAD development to prototype fabrication guidance, I can support the entire process. Let's discuss the details and bring this product to life.
$103 USD in 4 days
1.0
1.0

Are you looking for an experienced product/mechanical CAD designer who can take your jar-opening concept from sketches through a tested physical prototype? I can develop the palm-sized tool with a strong focus on ergonomics, grip geometry, flexibility, durability, and real-world usability for jar lids from 63–110 mm. I can handle: Fully parametric STEP/3D CAD model Ergonomic palm/grip design Non-slip grip texture and contact geometry Flexible structure that distributes hand pressure without damaging lids Material selection based on grip, flexibility, wear resistance, and durability Shore hardness/durometer recommendation Design-for-manufacturing review Low-volume silicone casting or moulding strategy Prototype preparation and fabrication Physical prototype testing and fit/function evaluation Design revisions based on hands-on testing For the material, I would evaluate options such as food-contact-grade silicone, TPE/TPU, or suitable rubber/elastomer blends, rather than assuming one material is best. Deliverables Editable native CAD + STEP Manufacturing/material recommendation Prototype-ready drawings Recommended Shore hardness and elastomer specification Manufacturing guidance One physical prototype Prototype testing notes and recommended design improvements Final revised CAD after testing Please send the initial sketches and jar/lid references, and I can review them and propose the best geometry, material, and prototype manufacturing route. Best regards, Sidra
$105 USD in 2 days
0.8
0.8

Ottawa, Canada
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Member since Oct 29, 2010
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