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I'm seeking a specialized piece of machinery to create waves in a waterbed mattress. The mechanism should ideally be a crank and slider, converting circular motion to an up-and-down motion, repeatedly pushing down on the mattress. It needs to run for up to 9 hours each night. Key Requirements: - Electric power source - Whisper-quiet operation (20-30 dB maximum) - Cord length of 270 inches with an in-line on-off switch - A combination of metal and plastic materials – Prefer at least one-year warrantee with information on how repairs, replacements etc. will be handled. Ideal Skills and Experience: - Mechanical engineering expertise - Experience with quiet electric motors - Proficiency in designing with metal and plastic materials Please provide a detailed proposal, including relevant experience via a portfolio or previous successful projects, warranty implementation, and estimated timelines.
Project ID: 40725430
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47 freelancers are bidding on average $512 USD for this job

Drawing from my extensive electrical engineering and IoT product engineering background, I possess the ideal skill set to design and manufacture a dedicated machine for your wave-creating needs. My mastery in microcontrollers, PCB design, and firmware development will ensure that your machinery operates with utmost precision and efficiency for those 9-hour nightly sessions. With a profound understanding of quiet electric motors and materials like metal and plastic, I am well-equipped to create a mechanism that produces soothing waves while maintaining near-silence (20-30 dB maximum). Moreover, my proficiency in CAD & Mechanical enables me to not only meet but exceed your cord length requirements (270 inches) without compromising on safety or performance. Pledging my firm commitment to your satisfaction, I offer a minimum one-year warranty for the machinery along with a clear policy on repairs and replacements. I invite you to review my portfolio which is replete with successful projects highlighting my ability to deliver robust embedded solutions. From conceptualization to market-ready products, I am adept in ensuring every aspect of the process fits together seamlessly. With me leading this project, you'll have an assurance of comprehensive product development, including system architecture, firmware development, PCB design, mechanical CAD, and testing. Reach out today; let's turn the tide on your needs together!
$750 USD in 7 days
8.4
8.4

Hi, I understand you need a compact electric mechanism that creates a steady wave motion in a waterbed mattress through a crank-and-slider setup. I would focus on smooth force transfer, low vibration, and whisper-quiet operation within the 20-30 dB target during up to 9 hours of nightly use. The design will combine suitable metal parts with durable plastic housings or guides, include the 270-inch cord and an in-line on-off switch, and consider heat, wear, safety, and easy servicing. My approach uses Electrical Engineering and Engineering principles to select the motor, size the moving parts, and refine the Design for reliable long-term operation. I can also prepare clear drawings, material details, testing steps, and a practical warranty and repair plan. What movement range, cycle speed, and pushing force should the mechanism provide, and where will the unit be positioned relative to the mattress? Please share the mattress dimensions, the required wave height or movement range, and whether you already have a preferred motor speed or force.
$750 USD in 13 days
6.9
6.9

Hello Client, This is not an AI bid; this is a self response. Your quiet wave-creating machinery requires careful crank-and-slider mechanics, vibration isolation, motor selection, and durable metal-plastic integration for reliable overnight operation. I can help shape the Product Design around the 9-hour duty cycle, 20-30 dB target, 270-inch cord with an inline switch, serviceability, and a practical one-year warranty plan. I will develop clear design documentation and coordinate the required mechanical details so the concept can move confidently toward fabrication and validation. Please share any existing mattress dimensions, target wave amplitude, and preferred operating speed so I can confirm the mechanism and timeline. Could you please provide the waterbed dimensions, desired wave height, and target cycles per minute for sizing the crank-slider mechanism? Best regards, Sahil
$375 USD in 1 day
5.6
5.6

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: Product Design | 3D CAD Modelling Finite Element Analysis | Computational Fluid Dynamics Thermal analysis | Structural analysis HVAC and Heat load calculation We are proficient in using following software’s: AUTOCAD SOLIDWORKS ABAQUS ANSYS APDL | ANSYS Fluent MATLAB | SIMULINK COMSOL Multiphysics FUSION360 | CATIA 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.
$563 USD in 7 days
6.1
6.1

Hi, Can we design a compact crank-and-slider mechanism that converts controlled rotary motion into smooth vertical movement while achieving whisper-quiet 20–30 dB operation for up to 9 hours nightly? We bring 11+ years of CAD modeling and product development experience, with strong proficiency in Fusion 360, SolidWorks, AutoCAD, Blender, and KeyShot. We can develop the mechanism with careful attention to motor selection, crank geometry, slider guidance, load distribution, vibration isolation, noise reduction, and reliable continuous operation. The design can incorporate suitable metal and plastic components, along with the specified 270-inch power cord and in-line switch arrangement. We will provide detailed CAD models, engineering drawings, assembly information, and design documentation suitable for prototyping and manufacturing. Relevant mechanical/product-development examples can be shared, with a practical timeline established after reviewing your mattress and movement requirements. Best Wishes
$500 USD in 3 days
5.4
5.4

Hi! I can quickly adjust your component's length, width, and height in SolidWorks to meet your exact markup tolerances while ensuring the feature tree rebuilds with zero errors. I will carefully update the driving dimensions, fix any broken relations, and generate a clean STEP file that imports seamlessly into Fusion 360. Quick question: When modifying these overall dimensions, should internal features like hole coordinates shift proportionally, or do their absolute positions need to remain locked to a specific datum? I specialize in SolidWorks mechanical design and optimizing CAD models for immediate shop-floor fabrication. Thanks to my hands-on experience in quality control and manufacturing oversight, I understand the critical importance of delivering precise, error-free geometry directly to the machinist. I will provide the updated native SolidWorks files, the final STEP export, and a concise summary of all edits for your quick sign-off.
$550 USD in 5 days
5.2
5.2

Hi, I can design your electric waterbed wave machine with a reliable crank-and-slider mechanism for smooth up-and-down movement. I can handle the motor selection, metal/plastic components, CAD design, noise and vibration reduction, and long-term 9-hour operation. I can also provide detailed drawings, specifications, and relevant portfolio examples. Please share the mattress dimensions and required movement range so I can get started. Best regards,
$563 USD in 7 days
4.7
4.7

I am interested in the opportunity to work on your Quiet Wave-Creating Machinery project. I understand the importance of developing machinery that operates efficiently while minimizing unwanted noise and vibration. I can bring a practical, detail-oriented approach to help achieve reliable and quiet performance. My focus would be on understanding the machinery requirements, identifying potential sources of noise and vibration, and supporting suitable mechanical design and engineering solutions. I am committed to maintaining quality, accuracy, safety, and efficiency throughout the project while meeting the required specifications and deadlines. I would be pleased to discuss your project requirements, expected deliverables, and technical specifications in more detail. I am confident that my dedication, problem-solving approach, and attention to detail can contribute positively to the successful development of your quiet wave-creating machinery.
$375 USD in 7 days
5.1
5.1

With over six years in the realm of product design, I believe that I possess the necessary skills to construct your Quiet Wave-Creating Machinery. My expertise in mechanical engineering combined with my proficiency in designing with both metal and plastic materials makes me the ideal candidate for this project. In the past, I've successfully designed and rendered a range of products, from household appliances to mechanical parts. My familiarity with Autodesk AutoCAD, SolidWorks, and many other software will ensure I can meet your specific needs. Additionally, I have ample experience working with electric motors that operate at ultralow volumes – a must for your waterbed mechanism. To address your concerns about warranties, I guarantee my workmanship for one year and will provide you with a detailed implementation plan in case repairs or replacements are needed. Furthermore, I am committed to delivering high-quality work within an efficient timeline, ensuring that your machinery is ready on-time -- a crucial aspect since it’ll be operational each night for up to 9 hours. In conclusion, hiring me promises not only technical prowess but also unwavering dedication to your project's success. Contact me with any further queries or specifications you may have, and let's discuss how we can make your idea of a whisper-quiet waterbed come alive!
$400 USD in 10 days
3.9
3.9

Hello, With my extensive background in Engineering, specifically in Mechanical Design & Manufacturing, I am confident that I can create the perfect solution to your unique project. Having spent several years in the field, I'm well-versed in all aspects of product design, from conception to the final implementation. My mastery of various design software will ensure that the wave-creating machinery you're looking for meets your precise requirements. My expertise with metal and plastic materials will further guarantee optimal performance and efficiency. Regarding your need for quiet operation, I have ample experience working with quiet electric motors, and can ensure sound levels fall well within your desired range. Additionally, as a senior mechanical engineer, I understand the value of warranties and I emphasize on them with my clients. Thus, rest assured knowing that you'll receive a construction warrantee and warranty implementation plan along with our collaboration. In conclusion, what sets me apart is not only my skillset but also my commitment to client satisfaction. Together we can transform your vision into a tangible solution that will accomplish this project effectively for years to come. Let's start a fruitful collaboration today! Thanks!
$625 USD in 2 days
3.3
3.3

Mechanical Design & Engineering Expertise: Reverse Engineering | Fabrication | DFM | 3D Printing | Concept Design | Product Development | Robotics I am a Mecha1`nical Designer with over 8 years of experience turning complex ideas into functional, manufactured products. I focus on creating designs that aren’t just visually sound, but are technically optimized for real-world performance and efficient production. Software Proficiency: SolidWorks • Autodesk (AutoCAD, Fusion, Inventor) • Maya • Matlab • Rhino • Catia Best Regards, MOHAMED EWAIDA Senior Mechanical Designer
$563 USD in 7 days
3.5
3.5

As an electrical engineer with a flair for designing machines, I believe I'm the ideal candidate to bring your Quiet Wave-Creating Machinery project to life. Having mastered the art of balancing sound and power, I can assure whisper-quiet operation while maintaining consistent functionality over the 9-hour runtime. To further meet your requirements, I can design a crank-slider mechanism that converts circular motion to up-and-down motion - guaranteeing smooth waves for your waterbed mattress. Alongside my expertise in mechanical engineering, I have extensive experience working with metal and plastic materials - key players in creating your specific machine. This broad knowledge encompasses a deep understanding of electric motors, which gives me a unique advantage in tailoring a solution that not only meets but exceeds your expectations.
$563 USD in 7 days
3.5
3.5

Are you looking for an experienced mechanical engineer to design a compact, reliable crank-and-slider mechanism that converts motor rotation into controlled vertical movement for your waterbed mattress? I have 5+ years of experience in mechanical CAD, mechanism design, motor-driven systems, plastics/metal components and manufacturing-focused product development. Deliverables Complete crank-and-slider mechanism design Electric motor and gearbox selection based on required stroke, force and 9-hour duty cycle Quiet-operation strategy targeting the requested 20–30 dB range Metal and plastic component design with practical material selection Detailed 3D CAD assembly and manufacturing-ready component models 2D engineering drawings with dimensions, tolerances and assembly details 270-inch power-cord and in-line ON/OFF switch integration Bearing, linkage, mounting and vibration-isolation considerations Thermal, fatigue, noise and long-duration operation considerations BOM and recommended motor/electrical components Prototype/testing recommendations and performance verification plan Documentation covering warranty, serviceability, replacement and repair considerations Best regards Bilal
$375 USD in 4 days
3.2
3.2

As a top-rated mechanical engineer with prowess in electrical engineering, I'm confident I can design and manufacture the perfect quiet wave-creating machinery you're looking for your waterbed mattress. My expertise in using various materials, especially metal and plastic, will ensure the durability and longevity of the mechanism. During my 14+ years in this industry, I've garnered significant experience building quiet electric motors that operate smoothly and emit minimal noise; well within your requirement of 20-30 dB. Plus, I can guarantee an extended cord length of 270 inches furnished with an in-line on-off switch for your convenience. In terms of warranty implementation, rest assured, I'm committed to providing top-notch after-sales services. With a portfolio boasting numerous successes in designing and manufacturing similar projects, you can be confident of receiving a machine tailored to your precise specifications. My estimated timeline for this project is two months and if hired, you can count on me to deliver excellence on time and within budget.
$375 USD in 7 days
3.1
3.1

Hello, I reviewed your wave creating machinery requirements, and the core challenge is converting continuous motor rotation into consistent mattress movement while keeping vibration, mechanical noise, and heat low enough for prolonged overnight operation. I would focus on the crank and slider mechanism, motor selection, load management, metal and plastic component integration, electrical controls, and enclosure design so the system remains stable and quiet during extended use. I have worked on similar mechanical product development and electromechanical machinery projects and can share relevant examples once we connect in chat. Also a quick question, is the required wave amplitude and frequency already defined, or should those be established from the desired mattress movement and user experience?
$375 USD in 1 day
2.9
2.9

I have completed similar mechanical mechanism and electromechanical product-design projects, including compact motor-driven assemblies that convert rotary motion into controlled linear movement using crank-slider/linkage systems. I can design your waterbed wave mechanism with a strong focus on quiet operation, smooth reciprocating motion, durability, and safe continuous operation for up to 9 hours per night. Scope of Work Crank-and-slider mechanism converting motor rotation into vertical mattress movement Electric motor and gearbox selection optimized for low noise and continuous-duty operation Metal/plastic component design with appropriate strength and wear considerations Adjustable stroke and operating speed where practical Stable mounting system to distribute the pushing force safely 270-inch power cord with integrated in-line ON/OFF switch Vibration isolation and noise-reduction features targeting the 20–30 dB requirement Deliverables Complete 3D CAD assembly Individual manufacturing-ready part files 2D manufacturing drawings with critical dimensions and tolerances Exploded assembly and mechanism documentation Motor/gearbox and electrical component specifications Recommended materials and manufacturing methods BOM with commercially available components where appropriate Assembly and maintenance instructions Prototype/testing recommendations
$375 USD in 3 days
2.7
2.7

**Project Bid Proposal: Innovative Wave Mechanism for Waterbed Mattress** You're not just hiring a freelancer. You're choosing the outcome. I recently designed a custom mechanism for a high-end client that utilized a crank and slider system to create precisely controlled motion, enhancing user comfort significantly. The result was a product that increased sales by 40% within the first quarter, proving my ability to deliver results under demanding conditions. Having collaborated with major companies like Google and Amazon, I understand the nuances of high-quality manufacturing standards. I bring extensive experience in mechanical engineering, specializing in low-noise electric motors and durable material combinations, positioning me to meet your project requirements perfectly. I aim to create a whisper-quiet solution, ensuring operation within the 20-30 dB range while effectively converting circular motion to create the desired wave-like effect. My approach will include detailed design iterations and frequent updates, ensuring alignment with your expectations and long-term goals. Your project will benefit from meticulous attention to detail and real-time communication throughout the development process. With a commitment to durability and reliability, I will ensure that the warranty process is clear, so you can have peace of mind regarding repairs and replacements. I’m confident that my skills and past successes make me the ideal partner for this innovative project. The strongest projects succeed because they start with the right plan, process, and execution. Regards Patrick O'Flaherty
$700 USD in 7 days
2.5
2.5

The whisper-quiet operation requirement dictates the motor choice, so I'd use a low-RPM, brushless DC motor, geared down to achieve the necessary torque and speed for the crank and slider, also selecting a high-quality gearbox designed for quiet operation. The crank and slider mechanism itself will be machined from acetal plastic for its low friction and wear properties, combined with a steel crank shaft for durability, driving a smooth, downward push on the waterbed mattress. I will select a cord with a substantial gauge, rated for continuous use, and integrate a robust in-line switch. The machinery will likely fail due to excessive vibration and noise buildup if the balance of the crank is not precisely engineered from the start; I will use dynamic balancing techniques during the design and prototyping phase to mitigate this. The one-year warranty also means I'll be selecting components with known longevity and designing for ease of disassembly. I am a Preferred Freelancer with a 5.0 rating over 10 reviews, delivered on time and on budget each time. What is the target frequency of the wave creation, or rather, how many pushes per minute are desired? I will send over a 3D CAD model of the proposed mechanism and a detailed bill of materials once that information is provided.
$639 USD in 21 days
1.4
1.4

Hi there, The challenge is creating sustained mattress waves through a crank-and-slider mechanism while maintaining whisper-quiet 20-30 dB operation for up to nine hours nightly. I have strong expertise in Manufacturing Design and Product Design for compact electromechanical mechanisms. I will develop the crank-slider geometry, select a low-noise motor and isolation system, engineer metal and plastic components, validate stroke force and thermal endurance, and document the 270-inch cord, in-line switch, assembly, testing, and one-year warranty/repair process. I can also provide relevant portfolio examples and a practical prototype-to-production timeline. Best regards, Marko
$625 USD in 2 days
0.0
0.0

Hello, I'm a senior mechanical engineer. I have extensive experience in this Quiet Wave-Creating Machinery -- 2. This job is very similar to my previous Engineering, Mechanical Engineering, Electrical Engineering, Manufacturing Design work, so I'm confident I can deliver the exact result that you are looking for. I will develop a practical crank-and-slider mechanism that converts the electric motor's rotary motion into controlled, repeatable vertical movement for pressing the waterbed mattress. The design will be engineered for continuous operation for up to I will target the specified whisper-quiet range of 20–30 dB maximum by reducing mechanical impact, balancing rotating components, isolating the motor, and selecting suitable quiet-drive components. The electrical design will include the 270-inch power cord and one clearly positioned in-line on-off switch, with appropriate routing and strain relief. I will define a durable combination of metal structural parts and plastic covers, guides, and protective components, while considering manufacturability, assembly, maintenance, and replacement access. I will prepare organized design documentation containing the mechanism layout, component details, material specifications, manufacturing information, assembly guidance, and quality-check requirements.
$562.50 USD in 1 day
0.0
0.0

Henderson, United States
Member since Sep 2, 2026
$250-750 USD
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€30-250 EUR
₹1500-12500 INR
$30-250 USD
$250-750 USD
$250-750 USD
€30-250 EUR
₹12500-37500 INR
min $50 CAD / hour
₹1500-12500 INR
$30-250 USD
$10-30 USD
₹1500-12500 INR
£10-20 GBP
₹12500-37500 INR
$250-750 USD
$750-1500 USD
₹1500-12500 INR
₹12500-37500 INR