
In Progress
Posted
Paid on delivery
# PCB Layout Project — Dual Loop Board ## Summary We need a 4-layer PCB laid out from scratch in **OrCAD PCB Editor / Allegro**, starting from a completed OrCAD Capture schematic. we're gauging interest, timeline, and pricing from freelancers who could take this on independently if needed. ## What you'll receive - Complete OrCAD Capture schematic (11 sheets: Connectors, Isolated Processor, Iso Low Voltage, LEDs, Loop 1 Modulator, Loop 1 Output, Loop 2 Modulator, Loop 2 Output, Primary Power, Un-Isolated Processor, plus a root/hierarchy sheet), Revision F. - Bill of materials. - Reference dimensions for the existing board outline (~236mm x 64mm) — mechanical constraints (mounting holes, connector positions, enclosure fit) to be confirmed with us before final placement is locked. ## Known schematic issues you'll need to resolve or work around The schematic currently has some incomplete library data carried over from an older design revision. Whoever takes this on will need to: 1. **Assign PCB footprints** — a large number of passive/discrete parts (resistors, capacitors, diodes, test points, connectors — roughly 500+ instances) are missing the `PCB Footprint` property. Most are standard SMD/THT parts (0402/0603/SOT-23/etc.) so footprint assignment should be straightforward once package sizes are confirmed from the BOM. 2. **Fix two library part definitions**: the MOSFET package `PSMN069-100YS` and the diode package `BZX84C` have several pins with missing pin-number assignments in their symbol/footprint definitions. These need correcting in the library before a clean netlist can be extracted. 3. A custom parts library ("Kentec") used by the original design is not included — footprints for the affected discrete parts will need to be sourced or built from datasheets. ## Critical design requirement — read carefully **This is an isolated dual-loop monitoring/control board.** Loop 1 and Loop 2 are two independent, redundant signal/power channels (`SLOOP1±`, `PLOOP1±`, `SLOOP2±`, `PLOOP2±` nets) that **must remain electrically and physically separated** — no copper from Loop 1 should run adjacent to or cross Loop 2 without proper clearance, and the isolated-processor section must maintain appropriate creepage/clearance from the non-isolated section per the schematic's isolation barrier. Bidders should be comfortable with isolation/creepage-aware layout practices (this is a hard requirement, not a nice-to-have — a prior in-house auto-routed attempt at this board produced multiple loop-to-loop shorts that had to be manually identified and fixed). ## Deliverables - Complete, DRC-clean PCB layout (OrCAD PCB Editor / Allegro native format) with all nets routed and zero unresolved shorts. - Full compliance with the loop-isolation requirement above (we will spot-check this specifically). - Gerbers, drill files, IPC-D-356 netlist, and pick-and-place files for fabrication/assembly. - A short writeup of any placement/routing decisions or tradeoffs made, especially around the isolation boundary and any tight-clearance areas. ## Board specs - 4 copper layers ([login to view URL] / In1 / In2 / [login to view URL] equivalent in Allegro). - Mixed isolated and non-isolated sections on one board. - Board outline approx. 236mm x 64mm (to be finalized). - Material: standard **FR4** (no RF or flex requirements on this board). - Copper weight, stack-up, TG rating, and specific creepage/clearance distances: open to your recommendation based on the isolation voltage — please state your assumptions in your proposal, or ask and we'll confirm. ## What to include in your proposal - Relevant experience with isolated/multi-rail or safety-isolated board layouts. - Your estimated timeline from schematic handoff to DRC-clean gerbers. - Your proposed fixed price (or hourly rate + estimated hours) — no budget has been set, we're evaluating quotes. - Any questions about the isolation requirement, footprint gaps, or board outline before you'd be ready to start. ## Timeline Open — please propose your own based on scope. We'd like an initial quote and availability estimate before committing. I will confirm board dimensions, connector locations and any keep-out zones as soon as we start. Let me know your lead time and which CAD tool you prefer; as long as you can supply the full manufacturing set, I’m flexible.
Project ID: 40612759
51 proposals
Remote project
Active 6 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs

Thank you for the detailed project description. I have experience with complex multilayer PCB layouts, isolated power domains, and industrial control boards using OrCAD/Allegro and Altium. The isolation requirements, footprint assignment, library fixes, and manual routing constraints are all clear, and I understand the importance of maintaining complete separation between Loop 1 and Loop 2. Before providing a fixed quote, I would like to confirm the isolation voltage, required creepage/clearance distances, and whether there are any controlled impedance or high-current nets. Based on the current scope, I estimate 1 weeks from the final schematic handoff to a fully routed, DRC-clean PCB with complete manufacturing files.
£400 GBP in 5 days
6.9
6.9
51 freelancers are bidding on average £514 GBP for this job

With an amalgam of technical skills in CAD/CAM, Circuit Design, Electrical Engineering, and Electronics, I am perfectly poised to tackle your intricate project. Having been in the industry for a considerable period, I have designed numerous complex PCBs with a sharp focus on isolation and multiplexing. I pride myself on my meticulous attention to detail - an ability that will be critical in achieving compliance with your unique loop-isolation requirement. My experience with similar projects coupled with my professional tenacity would prove invaluable in resolving the known schematic issues you've highlighted - be it the need to assign PCB footprints or fixing library part definitions. My broad skillset also encompasses the mechanical acumen necessary for handling important layout constraints like mounting holes and connector positions. Moreover, my well-developed sense of communication will ensure that I clarify any technical queries promptly, leaving no room for ambiguities.
£250 GBP in 1 day
8.6
8.6

Hi I am an embedded systems engineer with over 16 years of experience. I have extensive experience taking mixed-signal, multi-rail and safety-isolated PCBs from schematic review through production, including creepage/clearance-controlled layouts, custom footprint creation, library correction and full manufacturing outputs in OrCAD PCB Editor/Allegro. I can independently import and validate the Revision F design, resolve the missing footprint and pin-number issues, rebuild unavailable Kentec parts from manufacturer datasheets, and complete a manually controlled 4-layer layout. Particular attention will be given to physical partitioning of Loop 1, Loop 2, isolated processing and non-isolated circuitry, with constraint-driven clearance checks and a final visual/netlist audit to ensure there are no cross-loop shorts. My estimate is 14 days from receipt of the complete design package and confirmed mechanical constraints. The deliverables will include the native Allegro database, DRC-clean Gerbers, drills, IPC-D-356 netlist, pick-and-place data and a concise design-decision report. Before starting, please confirm the maximum working/isolation voltage, applicable safety standard, connector locations, keep-outs and preferred fabricator. These determine the creepage rules and stack-up; until confirmed, I would avoid fixing assumptions that could require later rework. I can also support prototype review, bring-up and production queries if required. Please contact me to discuss details.
£750 GBP in 14 days
7.6
7.6

Dear prospective client, I am Metin, an experienced freelancer with a diverse background in circuit design, electrical engineering, and PCB layout to match the requirements of your project. Having tackled similar projects in the past, I have successfully implemented designs with challenging isolation requirements whilst adhering to mandated safety standards. I am well-versed in utilizing software such as OrCAD PCB Editor / Allegro to deliver pristine work and ensure compliance with design constraints. Your dual-loop monitoring/control board's successful operation hinges on impeccable isolation and keeping the channels electrically unconnected. I understand this requirement not just as a nice-to-have but as an absolute necessity based on your project's context. I can bring my expertise in isolation/creepage-aware layout practices to bear in addressing these issues head-on. In addition to end-result excellence, expect clear communication, timely delivery, and meticulous attention to detail from me. My quote will be tailored towards your specific project requirements and budgetary considerations. Should you have any questions or clarifications that require my input before initiating work, feel free to engage me at any time. Let’s collaboratively realize your vision for this 4-layer PCB layout design. Looking forward to working with you. Best regards, Metin
£450 GBP in 15 days
7.5
7.5

As a seasoned Electrical/Electronics Engineer with over 8 years in the field, my foremost expertise lies in PCB design and prototyping using various software including Allegro which you require for this project. I have an extensive experience working with OrCAD Capture schematic and would therefore hit the ground running with your project. Achieving clean, DRC-compliant PCB layout is something I pride myself in and can readily deliver on. The aspect of your project that sets it apart, its isolated dual-loop monitoring/control nature, necessitates specific skills which I possess. I've done previous designs that involved multi-rail and safety-isolated boards where meticulous attention to isolation/creepage-aware layout practices was paramount. This underlies my understanding of how critical and challenging the isolation requirement will be with such high-voltage PCB design. Your choice of engaging me would give you a freelancer who isn't just technically adept but a dedicated problem-solver able to think outside the box to minimize issues. My passion for ensuring design effectiveness while creating fit-for-purpose PCBs would augment your project significantly as we work towards an exceptional outcome that fully meets your specifications. Looking forward to helping you turn your circuit design dreams into profitable realities!
£400 GBP in 3 days
6.9
6.9

Is this fire alarm system ? Just from the description it looks like. However, do you accept KiCad design ? I dont have orcad tool. KiCad EDA is free and matured now and maintained by CERN. Will design it with all 3D models and if you have mechanical dimention or STEP file of the enclosure, I can nicely collaborate with KiCad for a perfect fit.
£1,500 GBP in 10 days
7.0
7.0

Hi there, I read your offer carefully and understand that you need a 4-layer isolated dual-loop PCB laid out from an OrCAD Capture schematic in OrCAD PCB Editor / Allegro, with strict physical separation between Loop 1, Loop 2, isolated, and non-isolated sections. I can support footprint assignment, library correction, custom footprint creation from datasheets, placement planning, creepage/clearance-aware routing, DRC cleanup, loop-to-loop separation checks, Gerbers, drill files, IPC-D-356 netlist, pick-and-place files, and a short layout decision report. My experience with PCB layout, industrial electronics, isolated sections, mixed-signal routing, footprint/library cleanup, manufacturable PCB outputs, and production documentation fits this project well. Just send me a message and we can review the schematic, BOM, isolation voltage, and mechanical constraints. Best regards, Samuel Tshibangu
£500 GBP in 1 day
6.4
6.4

Hi, I’m an Electronics Design Engineer with 8+ years of experience in schematic capture and PCB layout up to 8 layers. My portfolio includes complex, high-density designs such as Jetson Nano, CM5, and Orange Pi carrier boards, along with high-voltage, multi-rail, and isolated industrial hardware. I can take full ownership of your 4-layer dual-loop board using OrCAD Capture & Allegro. Library Cleanup: Fix pin definitions for PSMN069-100YS / BZX84C, assign all 500+ missing footprints from your BOM, and build missing custom library parts to IPC standards. Strict Isolation Routing: Guarantee 100% manual routing with dedicated keep-out channels between Loop 1 and Loop 2, maintaining required creepage/clearance across the isolation barrier with zero-DRC errors. Deliverables: DRC-clean .brd file, Gerber set, NC drill files, IPC-D-356 netlist, pick-and-place files, and a placement/routing tradeoff writeup. Timeline: 8–10 working days Fixed Price: $400 GBP Best regards, Muhammad Adeel
£400 GBP in 10 days
6.6
6.6

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!
£550 GBP in 7 days
5.9
5.9

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 Electrical and Electronics 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: Antenna Design (CST, HFSS) Embedded C Programming. VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI MATLAB/SIMULINK Network Simulator NS2/NS3 Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. IDEs like Keil MDK V5, ATmel studio and MPLab XC8. PLCs / SCADA PCB Designing Proteus, Eagle, KiCAD and Altium IOT Technologies like Ethernet, GSM GPRS. HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.
£500 GBP in 7 days
6.2
6.2

Hi, I have 12+ years of experience in high-speed, mixed-signal, and industrial PCB design using OrCAD/Allegro, Altium, and KiCad, including safety-isolated power and control systems. I have completed 40+ production PCB designs, including 6 motor-control boards up to 48V/15A, while achieving first-pass manufacturing success through rigorous DRC, SI, and EMC-aware layout practices. Approach ✅ I will first verify the schematic, repair missing library definitions, assign all PCB footprints, and validate the netlist before layout begins. ✅ I will create a placement strategy that preserves the isolation barrier, loop independence, creepage/clearance, return-current paths, and mechanical constraints. ✅ I will perform controlled routing on the 4-layer stackup, optimize power/ground planes, eliminate DRC violations, and verify that no Loop 1 and Loop 2 copper conflicts exist. ✅ I will generate the complete manufacturing package, including Gerbers, IPC-D-356, drill, pick-and-place files, and a technical layout summary. Questions ✅ What is the required isolation voltage and minimum creepage/clearance distance between the isolated and non-isolated sections? ✅ Can you provide the preferred PCB stack-up, copper weight, and impedance requirements, if any? ✅ Are the connector locations and board outline fully fixed, or should I expect mechanical revisions during layout? Best, Yaroslav
£500 GBP in 7 days
5.2
5.2

Hello! I'm Milan Iskrenov, Master Engineer of Architecture with strong experience in technical design, CAD software, and precision drafting. My background has developed excellent attention to detail, problem-solving skills, and the ability to deliver accurate technical documentation within deadlines. I am a fast learner, communicate clearly throughout every project, and am committed to producing high-quality work. I would be happy to discuss your requirements and see how I can contribute to your project.
£300 GBP in 4 days
5.0
5.0

⭐⭐⭐⭐⭐ Hi, Your project is well within my capabilities. I have extensive experience with complex multilayer PCB layouts, mixed-signal and isolated power designs, and preparing production-ready manufacturing files using OrCAD/Allegro and other professional PCB design tools. I can: Complete the 4-layer PCB layout from your OrCAD Capture schematic. Assign and verify missing footprints from the BOM. Repair the MOSFET and diode library definitions to generate a clean netlist. Create or source the missing Kentec library footprints from datasheets. Maintain strict isolation between Loop 1, Loop 2, and the isolated/non-isolated domains with appropriate creepage and clearance. Optimize placement for manufacturability, signal integrity, and routing while ensuring a clean DRC/ERC. Deliverables will include the native Allegro PCB database, Gerbers, NC drill, IPC-D-356 netlist, pick-and-place files, fabrication drawings, and a design summary documenting isolation assumptions and routing decisions. Estimated timeline is 2–3 weeks from receipt of the complete schematic, BOM, and confirmed mechanical constraints. I'm available to begin immediately and can provide regular milestone reviews throughout the layout process. Before starting, I'd like to confirm the required isolation voltage, creepage/clearance targets, final board outline, and any connector or enclosure keep-out requirements. I look forward to discussing your project.
£300 GBP in 1 day
5.1
5.1

Hi, I'm a PCB layout designer with hands-on experience in isolated, multi-rail, and high-voltage board designs — exactly the kind of creepage/clearance-sensitive layout this project calls for. I've handled similar isolation-barrier requirements in past power management and industrial control boards, so the Loop 1 / Loop 2 separation requirement and the isolated-processor clearance rules are very familiar territory to me. My primary tool is Altium Designer, but I'm comfortable working in OrCAD PCB Editor / Allegro for this project, and I'm happy to handle the footprint cleanup (missing PCB Footprint properties, the PSMN069-100YS and BZX84C pin-mapping fixes, and sourcing the missing Kentec footprints) as part of the scope. Proposed approach: library/footprint cleanup and DRC setup first → isolation-aware placement (loop separation + barrier clearance confirmed before routing) → routing → full DRC/IPC-D-356 verification → gerbers, drill, and pick-and-place files, with a short writeup on isolation-boundary decisions. Timeline: ~10–14 working days from confirmed schematic/footprints to DRC-clean gerbers, depending on final board outline and keep-out confirmation. Pricing: happy to quote fixed-price once footprint scope and creepage/clearance targets (based on your isolation voltage) are confirmed — please share that spec or I can propose standard values based on typical isolation requirements. Happy to answer any questions on the isolation approach before starting. Best regards,
£450 GBP in 6 days
5.0
5.0

HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message for my previous designs and also so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq
£450 GBP in 7 days
5.3
5.3

Hi, I'm confident I can deliver this PCB layout to production quality. I have extensive experience with 4-layer PCB design, isolated power domains, embedded hardware, and manufacturing-ready layouts, and I understand the importance of maintaining strict electrical isolation throughout the design. Your project aligns well with my background. I'm comfortable working in OrCAD Capture and Allegro PCB Editor, assigning missing footprints, repairing library definitions, creating custom footprints from datasheets, and preparing a clean netlist before layout. I have experience designing boards with isolation barriers, multi-rail power systems, and mixed-signal circuits, where creepage, clearance, return current paths, and EMI are critical considerations. I will deliver a fully routed, DRC-clean PCB with zero unresolved shorts, along with Gerbers, drill files, IPC-D-356 netlist, pick-and-place files, and clear documentation explaining key placement and routing decisions around the isolation boundary. Before starting, I'd like to confirm the isolation voltage, required creepage/clearance distances, final board outline, connector locations, and any mechanical keep-out areas. Based on the current scope, I estimate 2–3 weeks from receiving the complete design package to final manufacturing files. I value clear communication, attention to detail, and delivering reliable, production-ready hardware. I look forward to discussing your project. Best regards, Ihor
£300 GBP in 7 days
4.3
4.3

Hi, I can design your 4-layer isolated dual-loop PCB in OrCAD PCB Editor/Allegro, ensuring robust isolation, zero routing conflicts, and a fully DRC-clean, manufacturing-ready layout. With over 30+ years of experience in multilayer PCB design, industrial electronics, and safety-isolated systems, I'll deliver a reliable layout that meets your mechanical, electrical, and fabrication requirements. ✅ Proposed Design: 1. Assign missing PCB footprints, resolve library issues, and generate a clean netlist from the OrCAD Capture schematic. 2. Maintain strict electrical and physical separation between Loop 1, Loop 2, and isolated/non-isolated sections. ✅ Valuable Suggestion: Consider defining the PCB stack-up, copper weight, creepage distances, and keep-out zones before component placement to minimize routing revisions and ensure compliance with the required isolation voltage. ✅ Why Choose Me: 1. Extensive experience designing complex 4 to 12-layer industrial PCBs with isolated power domains and safety-critical routing. 2. Proficient in OrCAD Capture, Allegro PCB Editor, library creation, footprint management, DRC validation, and manufacturing documentation. ✅ Quick Question: What isolation voltage and minimum creepage/clearance distances should I design for, or would you like me to recommend values based on the applicable safety standard? Looking forward to delivering a reliable, production-ready PCB layout for your dual-loop system! Best regards, Prat PCB Must Innovations
£500 GBP in 7 days
6.4
6.4

Hi, I have experience with complex 4-layer PCB layouts, mixed-signal designs, and isolation-aware routing for industrial applications. I can assign the missing footprints, resolve the library issues, and deliver a clean, production-ready layout while maintaining the required isolation between both loops. I noticed your note about OrCAD. If it is not mandatory, I can complete the project using KiCad and provide the full manufacturing package. Please check my portfolio for similar PCB projects. I'm ready to discuss the details and provide an accurate timeline after reviewing the schematic and BOM. Best regards, Ahmed
£500 GBP in 7 days
4.2
4.2

Hello, I am Santosh Chaulagain, a professional Electrical Engineer and PCB Designer with over 7 years of experience in schematic design, PCB layout, and embedded systems, including ESP32, IoT devices, analog and digital circuits. I have successfully completed multiple projects for clients worldwide, delivering reliable and manufacturable designs. I have carefully reviewed your project requirements and I am confident that I can provide a high-quality solution tailored to your needs. My expertise includes PCB design using industry standards, component selection, BOM preparation, Gerber generation, and design optimization for cost and performance. I always ensure that my designs are fabrication-ready and tested for reliability. I focus on clear communication, timely delivery, and customer satisfaction. I am happy to discuss your project in detail and provide revisions until the final result meets your expectations. Looking forward to working with you. Best regards, Santosh C. Electrical Engineer | PCB Designer | ESP32 & IoT Specialist
£350 GBP in 7 days
3.7
3.7

Hi, I can handle the 4-layer PCB layout for your isolated dual-loop board in OrCAD PCB Editor / Allegro, starting from the completed OrCAD Capture schematic and delivering a DRC-clean manufacturing package. The best solution is to first resolve the footprint/library issues, correct the MOSFET and diode pin definitions, assign missing PCB footprints from the BOM/datasheets, and confirm board outline, connector positions, keep-outs, stack-up, copper weight, and creepage/clearance assumptions. I’ll then proceed with careful placement and routing while keeping Loop 1, Loop 2, isolated processor, and non-isolated sections physically and electrically separated. I’m comfortable with Allegro/OrCAD PCB layout, 4-layer mixed-signal boards, isolated domains, creepage/clearance-aware routing, multi-rail systems, custom footprint creation, DRC cleanup, Gerbers, drill files, IPC-D-356 netlists, and pick-and-place outputs. Deliverables will include: * Native Allegro/OrCAD PCB layout * Footprint assignment and library fixes * 4-layer DRC-clean routing * Loop 1 / Loop 2 separation review * Isolation barrier clearance review * Gerber and drill files * IPC-D-356 netlist * Pick-and-place files * Short routing/placement decision notes Estimated timeline: 2–3 weeks after schematic, BOM, mechanical constraints, and isolation requirements are confirmed. Best regards Ankit
£250 GBP in 7 days
3.8
3.8

Hello, This is exactly the type of PCB work I enjoy. I have extensive experience designing complex multilayer industrial boards with isolated power domains, MCUs, high-current sections, and strict creepage/clearance requirements. I'm comfortable rebuilding missing footprints, repairing library issues, and verifying every critical net before routing. Although your source is OrCAD Capture, I prefer Altium Designer because it provides stronger interactive routing, clearance management, and DRC capabilities for isolation-critical layouts. I can deliver complete manufacturing files (Gerbers, drill, IPC netlist, pick-and-place) fully compatible with fabrication. I never rely on autorouters for safety-critical boards—critical routing is completed manually to avoid hidden shorts and maintain proper separation between isolated domains. I can start immediately and provide a realistic schedule after reviewing the schematic and BOM. I would be glad to discuss the isolation voltage and mechanical constraints before layout begins. Best regards, ShengLin Gu.
£400 GBP in 7 days
3.5
3.5

United Kingdom
Payment method verified
Member since May 7, 2017
£250-750 GBP
$250-750 USD
£250-750 GBP
$250-750 USD
$30-120 CAD
$250-750 USD
₹600-1500 INR
$10-300 USD
₹1500-12500 INR
$30-250 NZD
$750-1500 USD
₹12500-37500 INR
₹600-1500 INR
€8-30 EUR
$250-750 CAD
€8-30 EUR
$15-25 USD / hour
₹1500-12500 INR
₹600-1500 INR
₹1500-12500 INR
₹600-1500 INR
$30-250 USD
₹12500-37500 INR