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I need the width of my rotating medical bed design altered from 900mm to a narrow bed of 750mm and wider bed 1150mm. The current design is in CAD format. Requirements: - Modify CAD design - Update documentation and specifications Ideal skills: - CAD proficiency - Experience with medical equipment design - Attention to detail - Technical documentation skills

I'm seeking an experienced mechanical engineer to finalize a fluid-based dispersal mechanism design. The concept is almost finished and needs to be detailed and prepared for CAD. Key requirements: - Mixing and ejecting two combined fluids in a 1:1 ratio. -Radial Dispersal Ideal skills and experience: - Proficiency in fluid dynamics and mechanical design. - CAD software expertise. System is designed to be simple, with minimal complexity/moving parts.

I need a custom RC dirtbike frame designed specifically for off-road use. The frame should have: - Material: Plastic - Design: Symmetrical and durable - Functionality: front and rear Suspension for rough terrain Ideal skills and experience: - Expertise in designing and fabricating plastic frames - Knowledge of suspension systems for off-road vehicles - Experience with durable design principles Also just experience with RC frames, dirt bikes and cars in general I will also need to be able to print it in multiple parts as my 3-D printer specifically the Bambu lab A1mini only has an 18 cm x 18 cm x 18 cm build area. I will give sizes and photos of all of my current components that will be going inside of the bike if you’re interested in helping. but the components it is a brushless m...

I need a clean, well-documented COMSOL model that captures the fully coupled electro-mechanical response of a piezoelectric polymer structure. The goal is straightforward: simulate and analyse how the chosen polymer behaves when mechanical stress and electrical fields interact, then extract the key performance metrics (voltages, stresses, strains, charge density, etc.) across the domain. The work starts with choosing or inputting the correct piezoelectric material constants, building or importing the geometry, and applying boundary conditions that reflect a realistic operating scenario. From there, the study should solve the coupled governing equations, followed by post-processing that isolates the most insightful plots and numerical results—field distributions, mode shapes, impedan...

Project Brief – Custom LoRa Wireless Button Trigger (USB Keyboard Device) Project Overview I am looking for an experienced embedded systems / hardware developer to design and build a custom wireless trigger system using LoRa communication. The system consists of: Handheld Transmitter (with button) USB Receiver (connected to a computer) When the button on the transmitter is pressed, the receiver should emulate a USB keyboard and send an ENTER key press to the connected computer. The device must be reliable and suitable for frequent use, therefore rugged connectors and proper enclosures are required. System Architecture The system will consist of two hardware devices. Wireless Range: At least 300-500 Meters Indoor. 1. Transmitter (Handheld Remote) A compact handheld remote devic...

I am developing a new spectacle frame and need a product designer who can balance engineering accuracy with eye-catching style. Both the mechanical function and the overall look carry equal weight for this project, so I’m counting on you to finesse every detail—from hinge geometry to surface curves—until the piece is production-ready and commercially appealing. READ BELOW- DESIGN WILL BE OF 2 PARTS - 1 FRAME - THIS ALLOWS LENS TO BE LOCKED INTO IT WITH HANDS 2- LENS FRAME - USED TO FIX LENS IN IT AND THEN IT GOES INTO THE FRAME TO BE LOCKED. THERE NEEDS TO BE A SEMI PERMANENT LOCKING MECHANISM. Key design parameters • Material: the frame will be injection-moulded in PC or TR90. Every feature must respect the flow, draft and wall-thickness constraints typ...

I’m taking a smart, retractable dog leash from concept to manufacturable product and need a seasoned mechanical CAD specialist to own the design phase. The core requirement is a rock-solid, long-life retraction mechanism built around composite components so the leash stays light in the hand yet stands up to daily yanks and weather. Beyond that primary function, the finished model must also support: • Adjustable length control with a positive-locking thumb switch • An ergonomic, ambidextrous handle that distributes pull evenly • A flush-fitting waste-bag holder sized for standard rolls * Powerbank You’ll start from my sketches and usage notes, translate them into a fully detailed 3D assembly, run basic motion/strength checks, and hand back: – Nati...

I'm seeking an experienced engineer or machinery specialist to design and possibly create an agricultural bucking machine. Essential Requirements: - Expertise in agricultural machinery - Experience with mechanization in farming - Knowledge of safety and efficiency standards Ideal Skills: - Mechanical Engineering - Agricultural Technology - Prototyping and Manufacturing Please provide examples of similar projects and a detailed budget breakdown.

This project requires the design and evaluation of an engineering product using metallic materials while applying fundamental concepts of materials science and solid mechanics. The project involves defining the design problem, identifying the functional requirements and constraints, and selecting appropriate metal materials that satisfy these requirements. Scientific justification must be provided for the material choice by analysing key properties such as strength, stiffness, durability, and weight. The project also requires analysing the materials processing and manufacturing methods used to produce the selected design. This includes explaining how different manufacturing techniques influence the material’s microstructure and mechanical properties. Engineering tools such as diagram...

Steel Structures Detailed Fabrication Shop Drawings for a 4x4m Elevated Steel Deck/Structure I am looking for a structural or mechanical designer to create detailed Shop Drawings and a 3D Model for an elevated outdoor rooftop deck. The design must be optimized for a "Bolted Connection" (Disassemble/Assemble) system, as the structure will be fabricated in a workshop and installed on-site. Project Specifications: Dimensions: 4.0 meters x 4.0 meters. Finished Height: 73 cm from the ground (3 cm allowance for WPC decking). Columns: 9 Square Hollow Sections (100x100mm, 3mm thick). Main Beams: Square Hollow Sections (80x80mm, 3mm thick). Joists: 13 Rectangular Hollow Sections (40x80mm) to support WPC flooring. Staircase: 5 risers (14.6 cm height each, 30 cm depth) made of 3mm Chequer...

PCB Design Brief Timeline Media Dock Controller Board This project requires a KiCad PCB design for the first prototype of a open source Media Dock. The dock is a hardware reader device used to interact with physical Media Volumes, which are media cartridges containing either storage media (SD card) or NFC identification tags. The board will be installed inside a dock enclosure and connected to a front display. Core Features The PCB must include support for the following components: Microcontroller ESP32 module (recommended) or equivalent microcontroller suitable for handling: SD card access NFC communication display control system logic NFC Reader The board must include an NFC reader chip (such as PN532 or equivalent) used to detect and read NFC tags embedded in Timeline medi...

Project Description I am developing a compact handheld mechanical device that transitions between two physical size configurations. The device must: • Collapse into a short, compact configuration • Extend into a longer ergonomic handheld configuration • Use a deliberate twist action to lock in both positions • Remain durable and mechanically stable in both states • Be compact, lightweight, and suitable for field use The mechanism should not rely on springs or automatic deployment. The transition between positions should be manual and intentional. The device will ultimately attach to a wearable platform, but the focus of this stage is the device body and locking mechanism, not the wearable system. Materials under consideration include: • aluminum • ...

I am looking for an engineer or a small engineering team to help build a working prototype of a wearable smart ring that communicates with a thin wallet card device placed in a wallet. The purpose of the device is to prevent wallet loss by alerting the user when the wallet moves more than a short distance away from the ring. The system should provide two types of alerts: a vibration alert in the ring and an optional audio alert. The project goal is to create a fully working prototype that demonstrates the concept in real life. Experience with miniature electronics, wearable devices, Bluetooth communication, and prototype development is preferred.

I am developing a new spectacle frame and need a product designer who can balance engineering accuracy with eye-catching style. Both the mechanical function and the overall look carry equal weight for this project, so I’m counting on you to finesse every detail—from hinge geometry to surface curves—until the piece is production-ready and commercially appealing. READ BELOW- DESIGN WILL BE OF 2 PARTS - 1 FRAME - THIS ALLOWS LENS TO BE LOCKED INTO IT WITH HANDS 2- LENS FRAME - USED TO FIX LENS IN IT AND THEN IT GOES INTO THE FRAME TO BE LOCKED. THERE NEEDS TO BE A SEMI PERMANENT LOCKING MECHANISM. Key design parameters • Material: the frame will be injection-moulded in PC or TR90. Every feature must respect the flow, draft and wall-thickness constraints typ...

I need a mechanical designer who can turn my concept for a small metal shed into a complete 3-D model that will keep sensitive industrial machinery dry and secure in an outdoor setting. After an initial call to clarify dimensions, and site constraints, you will translate the agreed layout into a fully detailed CAD assembly. The design could be built on 2.5 *2 meters concrete slab only; so, it is not big in nature. Please model all frame members, roof panels, fasteners, and flashing so I can generate fabrication drawings and a bill of materials directly from your file. I work mainly with SolidWorks, so native SolidWorks files are ideal, but STEP interchange works if you build with another professional package such as Inventor, Fusion 360, or CATIA. Once I confirm everything fits the site,...

Project Overview We are developing a compact cylindrical chamber where fluid enters tangentially to create a strong vortex flow. The chamber currently produces rotational circulation, but we want to enhance the swirl strength and stability. The goal of this project is to design internal helical guide ribs (swirl-inducing surfaces) along the inner wall of the chamber to improve fluid circulation and increase angular momentum in the vortex core. We are seeking an engineer with experience in fluid mechanics and mechanical design to optimize the internal rib geometry. System Description Chamber type: cylindrical vortex chamber Internal diameter: ~150 mm Chamber height: ~200 mm Material: PVC or similar plastic Fluid: water Flow type: tangential inlet jets generating vortex circulation ...

Project Overview We are developing a compact cylindrical chamber where fluid enters tangentially to create a strong vortex flow. The chamber currently produces rotational circulation, but we want to enhance the swirl strength and stability. The goal of this project is to design internal helical guide ribs (swirl-inducing surfaces) along the inner wall of the chamber to improve fluid circulation and increase angular momentum in the vortex core. We are seeking an engineer with experience in fluid mechanics and mechanical design to optimize the internal rib geometry. System Description Chamber type: cylindrical vortex chamber Internal diameter: ~150 mm Chamber height: ~200 mm Material: PVC or similar plastic Fluid: water Flow type: tangential inlet jets generating vortex circulation ...

Job Description: Create accurate 3D CAD models of iron/steel cab structures using Rhino Produce manufacturing-ready drawings Apply proper tolerances, material specs, and fabrication methods Collaborate with engineering/fabrication teams to refine designs Requirements: Proven experience with Rhino or SolidWorks (or equivalent CAD tools) Strong background in metal/iron fabrication and structural design Ability to work from sketches, 2D drawings, or concept designs Attention to detail and adherence to manufacturing standards

Project Overview We are developing a compact cylindrical chamber where fluid enters tangentially to create a strong vortex flow. The chamber currently produces rotational circulation, but we want to enhance the swirl strength and stability. The goal of this project is to design internal helical guide ribs (swirl-inducing surfaces) along the inner wall of the chamber to improve fluid circulation and increase angular momentum in the vortex core. We are seeking an engineer with experience in fluid mechanics and mechanical design to optimize the internal rib geometry. System Description Chamber type: cylindrical vortex chamber Internal diameter: ~150 mm Chamber height: ~200 mm Material: PVC or similar plastic Fluid: water Flow type: tangential inlet jets generating vortex circulation ...

I need a replacement gear modeled for 3-D printing. It is the small plastic gear you usually find inside a CD player drive and has to mesh perfectly with the surrounding train, so dimensional accuracy is critical. The gear will ultimately be printed in plastic, so tooth profile, wall thickness, and fillets must all suit common desktop FDM or resin printers. What matters most to me is high precision: the finished part must drop straight into the mechanism with no extra sanding or shimming and run quietly. Please base the geometry on standard spur-gear calculations; if you spot a better geometry that still meets the CD-player layout, let me know before finalizing. Deliverables • Parametric CAD model (STEP or native SolidWorks / Fusion 360) • Print-ready STL file • A sh...

Job Description We are a steel fabrication company in the UK looking for a mechanical engineer with experience in pressure vessel design to produce calculation report for some pressure vessels we will be manufacturing Provide engineering calculations for: • Shell thickness • Head thickness • Nozzle reinforcement checks (main nozzles) • Hydrotest stress verification • Confirmation that the vessel falls within SEP classification We are not requesting a certified design package — only a competent engineering calculation report for fabrication verification. A calculation report including: • Assumptions and design basis • Material allowable stresses used • Formula references / method • Required shell thickness • Required head thickne...

Note - I want someone to make & get one machine ready for me so please bid if you can handle everything from design to manufacturing. I am developing a compact, battery-powered device that continuously feeds a roll of sticky mat across a doorway so the exposed surface always stays clean. The concept is simple: a fresh section of mat is pulled from one spindle, laid flat, and the used layer is wound onto a take-up reel. Here’s what I already know I want: • Time-based automatic control that advances the mat precisely every hour. • A low-profile, walk-safe deck suitable for hospital corridors and dusty construction entries alike. • A rigid steel frame for durability, yet light enough to remain truly portable. • Quiet, sealed gear-motor driven by a rechargeable ...

I want to build a persistence-of-vision LED system that mounts on a standard bicycle wheel and shows crisp, full-color static images whenever the wheel reaches riding speed. The image should appear only at higher RPMs—cruising or sprint speeds—not while I am moving slowly or stopped. Core functionality • An addressable 256 LED spoke mounted strip driven by a small micro-controller (ESP32, Arduino-compatible, or similar) and powered by a lightweight, wheel-mounted battery. • Firmware that stores and renders static bitmaps in correct perspective as the wheel spins, synchronizing via hall-effect or magnet sensor. • A simple phone app that lets the rider pick any image, crop it to a wheel-friendly template, and wirelessly push it to the controller. There is no...

I am modelling a single-segment continuum robot whose backbone is manufactured in polyurethane and ABS. Your task is to set up and run parametric finite-element studies in ANSYS so we can see how the structure curves when one tendon is pulled with forces in the low 1 – 10 N range. For each geometric variant of the backbone I will supply (length, diameter, tendon-channel offset, bakbone type etc.), I need two clear results: • the exact tendon force applied, and • the resulting bend curvature radius of the backbone. Once all variants are simulated, please compare the force-radius trends and point out which configuration gives the most favorable bending performance so I can move forward with an optimal design. Deliverables must include the editable ANSYS project files, any ...

I need a complete engineering package for a mobile shredder that turns mixed vegetable waste into 3-5 cm pieces and then compacts it with a built-in hydraulic press. The machine must comfortably handle 50–200 kg of material per day and be light enough to move around the farm on a small trailer or skid. Core requirements • Cutting system sized for fibrous, high-moisture vegetable matter; knives or hammers should minimise clogging and be easily replaceable. • Consistent particle size of 3–5 cm without excessive fines. • Integrated hydraulic ram (manual, electric, or engine-driven—justify choice) that compresses the shredded output into manageable bales/blocks. • Power options: single-phase 230 V, small diesel/petrol engine, or tractor PTO—...

I need a mechanically minded drafter to turn my concepts into clear, production-ready drawings. The scope is strictly mechanical engineering design and drafting, and I want everything built in AutoCAD so I can integrate the files with our existing library. You will receive: • Hand sketches, key dimensions, and functional notes for a small assembly. • Reference photos of similar parts we already manufacture. What I expect back: • Fully detailed 2D AutoCAD drawings (.dwg) with clean layers, correct line weights, and an organised model/paper-space setup. • Exploded views and call-outs for critical tolerances. • A PDF drawing set for quick review. Acceptance criteria: 1. All dimensions in millimetres, tolerance block included. 2. Title block populated with t...

I have built several tractor-mounted boom extensions and now I want solid, engineer-backed numbers on exactly how much weight each point along the boom can safely handle. The boom is welded from a 3/8" side-steer plate and a 2-1/2" × 2-1/2" × 3/16" square tube. From the plate it runs straight for 10 ft, then kicks up at a 30° angle and continues another 2 ft, giving a total length of 11 ft 10 in. Its primary job is lifting pole-barn trusses, so the working load will sit in the 500–1,000 lb range. I don’t have to satisfy OSHA, ISO, or any other formal standard, but I do want a clear, defensible safety factor. What I need from you is a straightforward structural analysis—hand calculations, FEA, or a mix—that tells me: • Ma...