Reka Bentuk Mekanikal Jobs

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’m upgrading a vehicle with a roof-mounted thermal imaging camera and need a streamlined enclosure that behaves a bit like a transformer: it must rise, give the camera a full 180° pan and at least 30° of tilt, then fold back and disappear under a low-drag cover when not in use. The core of the job is mechanical design. I’m after a concept that can be built either by 3-D printing or injection-moulding, so please keep draft angles, wall thickness and other DFM considerations in mind from the outset. Weather sealing, vibration resistance and smooth airflow over the stowed housing are essential, but I’m flexible on the exact material as long as it can survive sun, rain and highway wind speeds. I need sourcing motors, sensors, circuitry, the enclosure geometry...

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...

I have three existing Altium Designer projects that must be refreshed before the next manufacturing run at JLCPCB. Both the schematic and the board layout need attention. On the schematic side I already know the exact edits: a handful of parts have to be added or removed, several nets must be reassigned, and a few voltage- and current-related values updated. Once those changes are in place the PCB layouts have to be brought in line—rerouting where required, keeping the original board outlines and mechanical constraints intact, and making sure every DRC/ERC check comes up clean. When the files are solid I need a full, ready-for-upload manufacturing package: • Updated Altium project files (.PrjPcb, .SchDoc, .PcbDoc) • Gerber and NC-Drill set generated with JLCPCB’s ...

I need a precise, full-featured 3D model of a robot in AutoCAD. This is a mechanical design task, not architectural or electrical, and I’m after more than a basic outline or a set of flat drawings—I want complete solid models that can be rotated, sectioned, and dimensioned for manufacturing. I will supply hand sketches, reference photos, and key dimensions as soon as we start. Your job is to convert that information into native DWG solids accurate to the tolerances I provide. If you prefer to draft in Inventor, SolidWorks, or Fusion 360 first and then export, that’s fine, as long as the final delivery is a clean, well-layered AutoCAD file with no missing features. Deliverables: • Editable AutoCAD DWG file(s) containing the full 3D geometry • A neutral STEP o...

For an upcoming marine‐grade manhole cover fabrication for a drilling rig, I need a formal Welding Procedure Specification that meets every clause of AWS D1.1. Manhole covers will be assembled and inspected in a shipyard environment, so clarity, practicality, and code compliance are equally important. The finished WPS must: • Reference AWS D1.1 throughout and spell out all essential, supplementary and non-essential variables. • Be tailored to marine-grade carbon steel; include pre-heat, inter-pass, post-weld and any corrosion-protection notes unique to salt-water service. • Specify filler metals, shielding gases and joint preparations suitable for both yard and onboard repairs. • Come with a Procedure Qualification Record template (or existing PQR data if you...

I’m designing a new Hindu temple and want the sanctum bathed in gentle, natural sunlight every day. The idea is to install a compact, telescope-like optical assembly on the roof that captures the sun’s rays and then diffuses them evenly across the deity, avoiding harsh focal spots or glare. Here’s what I need from you: an end-to-end optical solution—concept, ray-trace, mechanical layout, and a concise installation guide—completed within a month. . If you prefer Zemax, Code V, LightTools or an equivalent package, please work in the environment you’re most comfortable with; just be sure I receive the native files plus exported PDFs. When you respond, include examples of past work that prove you’ve tackled similar illumination or solar-collectio...

Project Title: Miniature Piezo Preamp PCB (10mm) – Reverse Engineer & Redesign Project Overview I am developing a professional leak detection microphone used for plumbing diagnostics. The system uses a piezoelectric sensor to detect vibration and sound from water leaks inside pipes. I already have a working preamp circuit, but the PCB is too large for my application. I need an experienced electronics engineer to analyze the existing design and redesign it into a much smaller PCB. The new design must maintain similar electrical performance but reduce the physical size so it can be mounted directly on the piezo sensor and permanently sealed with epoxy resin inside a capsule. Primary Objectives 1. Analyze or replicate the functionality of my existing piezo preamp. 2. Redesign ...

I am looking for a mechanical designer to create a compact protective frame for a Midas DL431 (6U rack device) using 1" × 1" 80/20 aluminum extrusion. The DL431 should mount using its front rack ears and standard rack rails, and the frame should act as a lightweight touring exoskeleton that protects the unit while remaining open on the sides for airflow and lifting. The framed unit must fit inside a Pelican 1637 Air case, include rear protection for connectors and attached cabling, and allow two identical frames to stack securely using a simple locating or pin system. I need a 3D CAD model, dimensioned drawings, and a complete 80/20 cut list and hardware list so the frame can be fabricated easily. I am specifically looking for someone with practical experience designing al...

I'm looking for a designer to create an 80/20 frame specifically to house a stage box. The design should prioritize functionality and user experience. Key Requirements: - Design a functional and user-friendly frame - Specifically for housing a stage box - Use of 80/20 materials Ideal Skills and Experience: - Proficiency in 80/20 design and assembly - Experience with audio equipment housing - Strong user experience design skills

I’m building a free-standing kinetic installation that tells a historical story through moving mechanical elements rather than costumed characters or electronics-heavy animatronics. The prop will rely on gears, cams, counterweights, and simple motor drives to create repeated, reliable motion sequences that feel period-authentic while still meeting modern safety standards. Here’s what I need from you: • Concept development that blends accurate historical styling with eye-catching, repeatable movement. • Mechanical schematics or CAD models (SolidWorks, Fusion 360, or comparable) showing linkages, drive systems, and fastener choices. • A concise bill of materials noting readily available components and period-appropriate finishes. • Assembly guidance and, if ...

I'm looking for a skilled craftsman to build a custom hard case for a small guitar so it can travel safely in my stow away luggage on a plane. Lightweight but strong! Requirements: - Material: lightweight but strong (eg plastic, Carbon Fibre) - Interior Lining: Foam - Closure Mechanism: Magnetic The guitar case would be approximately 94 x 23 x 7cm but not quite a rectangle shape. Its a MARTIN BACKBACKER GUITAR Ideal Skills and Experience: - Experience with plastic or carbon fibre construction - Knowledge of custom case design - Attention to detail and craftsmanship Please provide examples of similar work.

Title: Industrial Product Designer Needed for AC Airflow Carbon Filter Housing (3D CAD) Description: I am developing a passive air filtration product that works with the airflow from a split air conditioner. The product is a plastic housing module that holds a replaceable carbon cartridge and directs AC airflow through the cartridge to remove smoke, odor, and VOCs. I need an industrial product designer / mechanical CAD designer to create a complete 3D model of the housing. Product Overview: The module will sit below an AC outlet and capture a portion of the airflow. The airflow enters from the back side, passes through an internal airflow channel and carbon cartridge, and exits from the front perforated grill. Housing Dimensions: Length: 650 mm Depth: 80 mm Height: 70 mm Carbon Cartr...

我已经有一套完整的机械零件图，现需整理成标准的二维制造图并同步建立三维模型，同时附上清晰的设计过程说明，方便后续修改与学习。 工作要点 1. 在 AutoCAD 中重绘或优化现有 2D 图纸，标注完整尺寸、公差及技术要求。 2. 使用 UG（Siemens NX）建立对应的 3D 模型，保持与 2D 图一致的尺寸与约束。 3. 输出可编辑的源文件（.dwg、.prt 等）及通用格式（PDF、STEP）。 4. 编写简洁的设计过程文档，说明关键建模步骤、特征树结构、参数设置及注意事项。 交付物 • 完整的 2D 制造图 • 对应的 3D 模型文件 • 设计过程说明文档（Word/PDF） • 下图 “课程设计模板”中设计内容步骤3、4需要2份不一样的，加一份优化的，也就是6页文档 我希望图纸和模型都能直接用于加工或进一步优化，文件命名与层管理请保持规范。若有疑问或建议，可随时沟通。

I'm seeking an experienced AutoCAD designer to help refine and create a technical drawing for a complex mechanical plastic part. This drawing will be sent to a manufacturer. Essential Requirements: - Refine mechanical functions based on initial ideas - Translate hand-drawn sketches into precise AutoCAD diagrams - Ensure manufacturability of the design Ideal Skills: - Proficiency in AutoCAD - Experience with mechanical part design - Strong understanding of plastic manufacturing processes - Ability to interpret and digitize hand-drawn sketches Looking for someone who can collaborate closely and provide expertise to finalize a functional design. Please share relevant portfolio work with your bids.

Necesito realizar un mantenimiento correctivo a torno CNC que actualmente muestra fallas mecánicas. Aún no he podido identificar con exactitud si el problema proviene del husillo, las guías lineales o el motor de accionamiento, por lo que requiero una revisión completa para diagnosticar la causa raíz y efectuar la reparación. Busco a alguien con experiencia demostrable en: • Diagnóstico y reparación de tornos CNC. • Ajuste y alineación de componentes mecánicos de precisión. • Verificación de tolerancias y calibración posterior a la reparación. Necesito: 1. Diagnóstico detallado de los hallazgos. 2. Plan de reparación incluyendo repuestos sugeridos. 3. Ejecuci&oa...

3D CAD Designer Needed – 3D Printed Electronics Enclosure Design a functional enclosure for PCB based device. SolidWorks/Fusion 360. 3D print ready. Fixed-fee Contract. Scope of Work • Design a custom enclosure optimized for 3D printing • This is for a quick-turn prototype build. We will follow up with a second project that is more complicated. • Design is a simple case with lid. ID of case is roughly [65mm-W x 75mm-L x 40mm-H]. Finals dims to be supplied prior to start. 4mm radius on sides. • Lid with internal rib for alignment. Will be glued in place. • Vent holes for air flow (no IP rating) • Two protrusions on side for nylon webbing straps (15mm-Wide x 1.5mm-Thick] • See drawing. Deliverables • Native CAD files (editable, parametric) &b...

Summary We are developing a perfusion lid system for a proprietary vertical-membrane co-culture plate used for advanced cell culture. The lid will enable controlled flow (shear) along the membrane and will scale to the full plate with 12 independent recirculating loops (one loop per column). Each column contains 8 wells (total 96 wells). We prefer 12 independent loops so each column can run different flow rates and/or media conditions. We are looking for a contractor who can support development (concept → CAD → prototype strategy → DFM), not just drafting. We want flow constrained into a defined gap near the membrane to generate predictable laminar shear Target design gap: ~0.3–0.5 mm (must be toleranced and verifiable) Typical target per-well flow range: ~30–20...