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I need a tiny locking system that clicks into place when pushed and pops free when pressed again. The whole idea is to keep it as simple as possible—ideally a single piece or just a couple of parts—so a snap-fit or flexure-based design is the natural fit. Key points I must hit: • Made from TPU, mould-ready and dimensioned for small-scale plastic production. • No coil springs, pins, or multi-part latches; the geometry itself should do the work. • Clear tactile feedback on both lock-in and release. • Durable enough for regular, everyday use without losing its bite. • Compact footprint so it can nest inside tight assemblies. If you can translate those needs into a straightforward CAD model that I can send straight to the printer or mould shop—and back it up with a short explanation of how the flexure or snap works—then we’re set. Deliverables: 1. 3D CAD files (STEP or similar) of the mechanism. 2. A brief drawing or note set showing dimensions, tolerances, and material call-outs. 3. Simple usage guide or animation that proves the push-to-lock / press-to-release cycle works. Acceptance criteria: the part must lock with one press, unlock with a second press, survive at least several hundred cycles in TPU, and never rely on additional hardware to operate.
Project ID: 40403041
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Active 14 days ago
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Hi, This is exactly the kind of mechanism we handle in our 3D printing and prototyping work, especially snap-fit and flexure-based designs for compact products. We can design a TPU-based push-to-lock / push-to-release mechanism that works as a single integrated part (or minimal two-part assembly if needed), using controlled flexure geometry instead of springs or pins. The focus will be on: Optimized living hinge / flexure arms tuned for TPU elasticity A detent or cam profile that gives clear tactile “click” feedback in both lock and release positions Proper wall thickness and radii to avoid stress concentration and ensure long cycle life Mould-ready design considerations (draft angles, parting direction, uniform thickness where possible) Compact layout suitable for tight assemblies We typically start with a quick concept iteration, then validate it through 3D printed prototypes (TPU) to fine-tune the feel and durability before finalizing the CAD for production. Along with the CAD (STEP + STL), we’ll include a short working note explaining how the snap-fit/flexure mechanism operates and recommended tolerances for both printing and molding. If you can share the available space, expected load/force, and preferred actuation feel (soft click vs firm snap), we can dial this in very precisely. Let me know and we can get started right away
₹2,500 INR in 3 days
6.2
6.2
10 freelancers are bidding on average ₹1,595 INR for this job

Dear Client I hope this message finds you well. I am writing to express my interest in the job you posted. With 14 years of experience in mechanical design and a strong background in CAD software and product development, I am confident in my ability to contribute effectively to your project and deliver high-quality solutions. I specialize in mention specific areas like 3D modeling, product design, stress analysis, etc.], and have extensive experience working with tools such as SolidWorks, AutoCAD, CATIA, and Fusion 360. My focus is on creating efficient, reliable, and cost-effective designs while maintaining the highest standards of quality. A few key highlights of my qualifications include: • Expertise in 3D CAD modeling and mechanical assemblies. • Experience with finite element analysis (FEA) and stress analysis for optimal product performance. • A strong understanding of materials selection, manufacturing processes, and prototyping. • Excellent communication skills, ensuring that your requirements are fully understood and incorporated into the design. I am passionate about collaborating with clients to bring their ideas to life, and I take pride in my ability to deliver within deadlines while exceeding expectations. I would love the opportunity to discuss how my skills can contribute to your project’s success. Thank you for considering my application. I look forward to the possibility of working together! Best regards, Dheeraj kumar
₹2,000 INR in 1 day
2.3
2.3

TPU is not right material for mechanism as far as my knowledge. But if you have any different ideas then imopen about or else we can have conversation about your requirement. If intrested feel free to contact
₹3,000 INR in 4 days
1.5
1.5

Hi, I’m interested in the project and believe my portfolio clearly demonstrates the quality of my work. I am in the beginning stage in this platform. if i get a job like this it will be a good project for me. If you feel I’m a good fit, I’d be happy to chat. waiting for your feedback. Regards Mechanical Design Engineer
₹1,500 INR in 5 days
0.0
0.0

Hello, I can design a compact, single-piece TPU snap-fit mechanism that locks on one press and releases on the next using a flexure-based bistable design—no springs or extra parts needed. It will provide clear tactile feedback and be optimized for durability and small-scale molding. Deliverables: • STEP CAD file (ready for print/molding) • Dimensioned drawing with tolerances and TPU material specs • Simple motion explanation of the push-lock / press-release action The design will be compact, reliable, and built to handle repeated use without losing performance. Best regards, Greeshma.
₹900 INR in 1 day
0.0
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hello , I'am a solidwork expert and able to have a design for what you need , I will be also able to make a principe for what you ( close in the first press and than open with the second press )
₹1,000 INR in 7 days
0.0
0.0

I understand you're seeking a compact and efficient push-lock mechanism that operates seamlessly without additional hardware. Your requirements for a simple yet durable design resonate with my expertise in product development and CAD modeling. With over 12 years of experience, I specialize in creating innovative solutions using technologies such as flexible materials like TPU. I can design a snap-fit or flexure-based locking system that provides clear tactile feedback during operation, ensuring user satisfaction. My approach will focus on achieving your criteria for a compact footprint while maintaining functionality through geometry alone. Deliverables will include detailed 3D CAD files suitable for manufacturing, along with comprehensive notes on dimensions and tolerances, plus a usage guide to illustrate the lock-in and release cycle effectively. To ensure we're aligned, could you clarify any specific size constraints or assembly considerations you might have in mind for this mechanism?
₹1,500 INR in 7 days
0.0
0.0

This is a really interesting idea, and I’d be happy to help bring it to life. I can design a small, clean push-to-lock / press-to-release mechanism using a flexure-based snap fit—keeping everything simple and avoiding any extra parts like springs or pins. The focus will be on getting that satisfying “click” feel, while making sure it’s durable enough for regular use and compact enough to fit into tight spaces. I’ll also make sure the design is ready for TPU printing or molding. What I’ll deliver: A STEP CAD file you can send straight to a printer or mold shop A simple drawing with key dimensions, tolerances, and material notes A quick guide (or animation) showing how the lock/unlock action works If you already have size limits or a preferred TPU hardness, I can tune the design around that. Otherwise, I’ll propose something practical and production-friendly. Looking forward to working on this!
₹1,050 INR in 7 days
0.0
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Hello! I have the experience to bring your project to life. With my expertise in electrical components and mechanical design, I have designed industrial machines. I have extensive experience in 3D design and the manufacturing of mechanical parts. I will provide you with 2D technical drawings in PDF or DXF format for manufacturing, as well as in STEP and OBJ formats. I also have experience with PCBs and knowledge of electronic components.
₹1,450 INR in 7 days
0.0
0.0

3D CAD files (STEP or similar) of the mechanism. A brief drawing or note set showing dimensions, tolerances, and material call-outs. Simple usage guide or animation that proves the push-to-lock / press-to-release cycle works.
₹1,050 INR in 5 days
0.0
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