Kawalan Enjin Jobs

Technical Specification: Inkjet DC Servo Motor Emulation via NEMA Stepper Motor (Closed-Loop Conversion)1. Project ObjectiveTo design and implement an electronic intermediary system (signal translator) to replace the original DC carriage motor of an inkjet printer with a NEMA stepper motor. The system must guarantee ultra-smooth, resonance-free linear motion and high-fidelity real-time positioning feedback to prevent the printer's mainboard from triggering a Carriage Jam or Fatal Error state.2. Block Diagram and Signal Flow ┌──────────────────────────────────────────────────────────┐ │ INKJET PRINTER MAINBOARD │ └───────────────┬──────────────────────────▲───────────────┘ │ │ [Integrated H-Bri...

I need a complete electronics solution that can replace the original EBB board on an Axidraw-style writing machine. The job covers both hardware and software. Hardware scope • Design a compact, two-axis motor-control PCB built around an ESP32. • Integrate two stepper-motor drivers capable of smooth, quiet motion at plotting speeds. • Provide a reliable USB interface for host control and firmware updates. • Include all required power-management, end-stop, and pen-lifter circuitry so the board can drop straight into an existing Axidraw frame. • Deliver production-ready assets: schematic (PDF & source), PCB layout, Gerber/Drill files, BOM with part numbers, and a brief assembly guide. Firmware scope • Develop firmware that exposes Axidraw-compat...

I’m leading a senior-year project where my student team will build and test an induction-motor drive (motor, VFD, sensors, protection, filters, the works). What we’re missing is seasoned electrical-engineering insight during the DESIGN phase. Here’s what I’d like from you: • Review and refine our single-line and wiring diagrams, ensuring safe operation on a 3-phase, 480 V supply. • Help size and specify the motor, VFD, fuses/MCB, contactors, braking resistor, EMI/RFI filters, current/voltage sensors, and any surge- or overload-protection devices. • Validate thermal calculations, harmonic considerations and grounding/shielding practices. • Provide a concise Bill of Materials with part numbers and vendor suggestions, flagging long-lead or co...

I have an Arduino-based setup that drives DC motors and I need clean, well-commented code that handles speed control, direction changes, and automated stopping. The sketch can be written from scratch or built on what I already have; either way, I want the final file to compile error-free in the current Arduino IDE and be easy for me to tweak later. Here’s the core logic I’m after: • Speed control – PWM or another reliable method that lets me adjust RPM smoothly from zero to full throttle. • Direction control – forward/reverse switching triggered by a digital input or a serial command. • Automated stopping – when a limit switch, sensor, or timed event is triggered the motor should brake or coast to a halt, then wait for the next command. I...

I’m designing a slow-turning drum and need an experienced engineer to specify both the AC motor and the reduction gearbox that will drive it. The drum must rotate steadily at 6 RPM and the load calls for less than 100 Nm of torque on the output shaft. Space is limited, so overall package size and mounting arrangement have to be considered alongside efficiency and durability. What I need from you is a clear, calculation-backed recommendation: the appropriate gear ratio, motor power, frame size, and any duty-cycle or thermal considerations that might affect service life. Please base the sizing on readily available industrial components—ideally IEC-frame or NEMA equivalents—so I can source them quickly. Deliverables • A brief sizing report showing assumptions, torqu...

I need a complete set of EPLAN schematics that map out the electrical drivetrain of my vehicle prototype. The focus is strictly on the electric motor and its controller; auxiliary items such as battery packs, charging modules, or transmission layouts are outside this job’s scope for now. You are free to work without binding standards, so feel comfortable applying your own best-practice symbols, macros, and page templates in EPLAN Electric P8. What matters most is clarity, consistent device tagging, and tidy routing so my in-house engineers can drop your file straight into the broader vehicle project. Deliverables • Native EPLAN project file (.elk / .zw1) with all pages clearly labeled • PDF export for quick review • Simple parts list (motor, controller, core co...