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Project Description We are a manufacturer of bus passenger seats and are developing a new design for a blow-moulded bus passenger seat. We already have an existing 3D CAD model of the seat in STEP/STP format. We need to modify the upper/top portion of the seat backrest to achieve a new visual design based on reference image(s) that we will provide. The final CAD model will be used for development/manufacturing of the blow mould, so we require proper engineering CAD geometry and not merely a visual 3D model. Inputs We Will Provide - Existing seat CAD model in STEP/STP format - Reference image(s) showing the desired new top design - Relevant dimensions and clarifications as required Scope of Work The freelancer will be required to: 1. Import and work with our existing STEP model. 2. Redesign the upper/top portion of the seat backrest to closely match the reference image. 3. Integrate the modified portion smoothly with the existing seat geometry. 4. Retain the existing geometry of the remaining seat as far as possible. 5. Create clean and continuous surfaces suitable for an industrial blow-moulded component. 6. Ensure that the modified geometry is suitable for subsequent blow-mould/tool development. 7. Maintain appropriate smooth transitions, radii and surface continuity between the existing and newly designed areas. 8. Deliver a clean, valid CAD model without unnecessary gaps, broken surfaces or geometry errors. The primary objective is to change the visual appearance of the upper portion while retaining the basic seat architecture and existing geometry. Manufacturing Consideration This is an engineering/manufacturing CAD project, not a rendering project. The final model is intended to be provided to our mould/tool manufacturer for development of the production blow mould. The designer should therefore have experience with plastic product design and manufacturable surface/solid modelling. Experience with blow-moulded components, automotive plastic components, automotive seating, injection-moulded components or tooling-oriented CAD would be strongly preferred. Where the reference styling cannot be reproduced exactly because of blow-moulding or tooling constraints, the freelancer should highlight the issue and propose a practical alternative rather than simply creating visually correct but non-manufacturable geometry. Deliverables - Final modified STEP/STP file suitable for further mould/tool development - Native CAD/source file, if available - Screenshots/rendered views from multiple angles for design approval - Minor revisions based on our review before final acceptance When Bidding Please mention: - CAD software you will use - Your experience with blow-moulded or moulded plastic component design - Experience designing CAD models that were subsequently used for mould/tool development - Relevant examples of previous work - Estimated turnaround time - Number of revisions included Software such as CATIA, Siemens NX, Creo, SolidWorks or equivalent professional CAD/surface-modelling software is preferred. Confidentiality All CAD files, reference images, dimensions and other information supplied by us are proprietary and confidential. They must not be shared, published, reproduced or used for any purpose other than completion of this project.
Project ID: 40695633
14 proposals
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Active 6 days ago
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14 freelancers are bidding on average ₹7,646 INR for this job

Hello, i am ready exited to work you as i read your job description I am also an expert in making 2d,3d modelling and animating characters 2dautocad drawing ,elevation, solid work, Revit ,FBX ,Unity, Render also interior and exterior design. I have experience in field of more than 10+ years. I can Create Intro and Explainer Videos. for products and companies. Kindly check My Portfolio as well. Hope for your very soon reply. Thank you
₹15,000 INR in 2 days
7.9
7.9

With your project involving a blow-moulded bus passenger seat, my extensive experience in mechanical design and product development would be of great value to you. Over the years, I have honed my skills using professional CAD software including CATIA, Siemens NX, Creo and SolidWorks which are essential for this job. I have specifically tailored my skillset to mesh well with manufacturing-based projects like yours, having worked on numerous moulded plastic component designs including ones that were then used for mould/tool development. This means validations will be precise, dimensions accurate and your no-gaps, broken surfaces or geometry errors expectation will be fully met or even exceeded. My design approach is infused with engineering precision and an understanding of practicality in manufacturing which dovetails seamlessly with "creating visually correct but non-manufacturable geometry" concerns in a case where the reference styling cannot be reproduced. Though my primary objective would still be matching your desired design as closely as possible, having these considerations at play will create room for suggestions that make more sense functionally speaking without sacrificing aesthetic appeal.
₹12,500 INR in 7 days
4.3
4.3

Hi there ! As a professional mechanical and product designer with a speciality that aligns perfectly with this project, I am confident in my ability to deliver the quality outcomes you need. I am proficient in multiple CAD software including Siemens NX and SolidWorks which will ensure seamless work on your existing STEP model as well as create valid CAD models without any errors. My experience in designing for manufacturability is extensive and relevant to this job. I have previously designed CAD models used for mould/tool development, giving me firsthand knowledge of the exacting design and engineering software standards that need to be met for such projects. This also translates into ensuring my designs are manufacturable and practical, rather than simply visually pleasing. Furthermore, my deep appreciation for confidentiality, an encompassing 24/7 availability, and a quick turnaround time (usually within-a-week) adds value to the services I can provide you. With me by your side, you'll have all your designing needs met exactly the way you want them in a timely manner that doesn't compromise the quality of the work delivered. Thanks & regards Gaurav Sharma…..
₹7,500 INR in 2 days
4.1
4.1

Hi As a seasoned professional in the fields of mechanical product design and CAD, we’ve worked on similar automotive and seating design projects and would be happy to take this on. We can develop the blow-moulded bus passenger seat with a strong focus on ergonomics, structural strength, comfort, manufacturability, and clean industrial design. We’ll create detailed 3D models and production-ready CAD drawings while considering moulding requirements, material thickness, mounting points, and assembly details. Happy to review your existing concept, dimensions, and technical requirements and get started!
₹3,000 INR in 2 days
3.9
3.9

Your project to redesign the bus seat backrest is an exciting opportunity to enhance both functionality and aesthetics. The goal to modify the upper portion while maintaining the existing geometry is crucial for manufacturing, and I understand the importance of delivering a model that meets these engineering standards. I will import your existing STEP model and carefully craft the redesign to align closely with the reference images you’ll provide. My approach will ensure clean, continuous surfaces that are ideal for blow-moulding, addressing any potential manufacturing constraints with practical alternatives when necessary. This focus on manufacturability will safeguard the integrity of your design while enabling smooth transitions and surface continuity. Having worked on similar projects involving blow-moulded components and automotive plastics, I understand the nuances of creating CAD models for tooling development. I will utilize SolidWorks for this project, ensuring the final output includes a modified STEP file, native CAD files if available, and visual approvals from multiple angles. By aligning our efforts with your vision, we can create a backrest that not only meets manufacturing requirements but also elevates the passenger experience. Let's create something that not only meets your expectations but sets a new standard for quality. Regards Junaid
₹4,650 INR in 7 days
3.0
3.0

Hi, I’m Manish Saini from PrimePixel. I can modify your existing STEP bus-seat model in SolidWorks/CATIA-style surface workflow, redesigning the upper backrest to match the reference while preserving the existing architecture and creating clean, manufacturable geometry suitable for blow-mould/tool development. My team can focus on proper surface continuity, radii, transitions, and valid closed geometry, and I’ll flag any styling detail that conflicts with moulding constraints and suggest a practical alternative. I can deliver the revised STEP/STP, native source file where applicable, multi-angle approval views, and include minor revision rounds before final hand-off.
₹7,000 INR in 3 days
2.9
2.9

Hello, i am an Mechanical Design Engineer who has experience to make Car seat with ergonomic and safety design. With my Engineering skill and my solidworks, i can make it easily with good result. I hope we can collaborate in the project
₹7,000 INR in 7 days
0.9
0.9

Hi, I can modify the upper backrest of your existing STEP model and create clean, manufacturable CAD geometry for blow-mould development. I work with SolidWorks and have experience with plastic product design, surface/solid modelling, smooth transitions, radii, and tooling-ready parts. I’ll retain the existing seat geometry as much as possible and flag any styling details that may cause blow-moulding issues, with practical alternatives where needed. I can provide the final STEP, native source file, and multiple-angle views. Revisions: 2 rounds of minor revisions are included for design adjustments and corrections after your review. Turnaround: 2–4 days after reviewing the files. Relevant samples can be shared. Thanks, Deepak
₹7,000 INR in 7 days
0.4
0.4

Hi there, I can modify your existing STEP seat model into clean, manufacturing-ready geometry for blow-mould development. I’ll redesign the upper backrest to match your references while preserving the existing architecture, ensuring smooth surface continuity, appropriate radii, and tooling-friendly transitions. I’ll deliver the revised STEP, native CAD where applicable, multi-angle approval views, and minor revisions. I can work in SolidWorks/Creo and focus on manufacturability rather than visual-only modelling. Best regards, Pooja
₹10,000 INR in 2 days
0.0
0.0

As a seasoned 3D CAD designer, I bring a unique blend of technological prowess and practical knowledge to the table. I am well-versed in Fusion 360, SolidWorks, 3ds Max at the same time has a strong understanding of traditional manufacturing processes like FDM printing, CNC machining, injection molding. This breadth of knowledge gives me an edge in delivering designs with manufacturability in mind. My expertise aligned well with your project needs, including extensive experience with parametric modeling, product design, and even 3D scanning-to-CAD conversion. Over the years, I've had numerous opportunities to develop CAD models specifically for tool development giving me the comprehensive skill set crucial to your project. I respect the confidential nature of your project and assure you that no proprietary information will be shared under any circumstances. In conclusion, my experience combined with my dedication to producing high-quality deliverables makes me an ideal fit for your Bus Seat Backrest Redesign project. Doing business with me means not only getting a great design but also having a smooth collaborative process along the way. Looking forward to discussing further details!
₹4,900 INR in 1 day
0.0
0.0

I help clients transform ideas into professional 3D models and manufacturing drawings. With extensive experience in product design, machine design, and industrial equipment, I deliver accurate, practical, and cost-effective CAD solutions ready for manufacturing. Services: 3D CAD Modeling Mechanical & Machine Design Product Development Manufacturing Drawings Assembly Design Sheet Metal Design Design Modification & Optimization Prototype and Production Support Let's work together to turn your ideas into reliable and manufacturable designs.
₹2,500 INR in 3 days
0.0
0.0

AHMEDNAGAR, India
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