Engineering Services

Locus Engineering Inc. provides the following product development services:

A project specification is created prior to any design to better understand the requirements, including from the technical, functional, and user viewpoints. The specification is reviewed with the customer before proceeding with the design work.

System Design
Large projects often require a systems design approach to investigate the technical feasibility options available while still meeting the performance requirements. This helps decide error budgets, critical components, expected performance figures, hardware and software “hooks” for future features, and estimated unit costs.

Electronic Circuit Design
We have various experiences in sensors, analog, digital, microcontroller, telephony, and power circuits. Subscriptions to several trade magazines keep our information up to date with technology and components.

Microcontroller Firmware
Locus Engineering has extensive experience with coding and programming Silicon Labs 8051 architecture microcontrollers. These fast mixed signal devices are low cost while providing high performance for digital and analog based applications. We have developed 64 bit math routines to run on 8 bit microcontrollers, fast table-driven binary to BCD and BCD to binary converters, any format LCD character display drivers, RC Systems speech synthesizer drivers, serial memory drivers, and serial sensor interfaces. We have also developed a proprietary Simple Operating System (SOS) used in many products which allows real time operation of display, keyswitch, speech, communication, as well as system processes to run concurrently.

Schematic Capture
Schematics are provided for electronic circuits, flow charts, and block diagrams. A large library of standard and custom parts allows drawings to be quickly created with easy flow and readability.

PCB Layout
We do lots of PCB layout work, mostly two layer, using both surface mount and through hole components. Custom parts are easily added to our large library of component land patterns. Prototype boards are quickly returned within 3 (Canada) days or 8 days (China) depending on volumes or required turnaround time.

Mechanical Design
Our mechanical design capabilities include front panels, enclosures, custom parts, and specialized tooling. Documentation includes drawings in common formats such as dwg or dxf as well as tooling requirements and fabrication processes. This is complemented by our in-house machine shop allowing prototypes to be quickly fabricated in wood, plastic, or metal.

Interconnect (Cable) Design
Our cable design expertise includes signal and power wire placement, selecting connectors to meet environmental and electrical requirements, connector backshell or boot selection, cable sheathing, and assembly procedures. Cables are assembled with strain relief for each wire, and with a wire bundle twist for reliable and stress free operation.

Detailed Parts List with Breakeven Analysis
We provide a detailed parts list with multiple sourcing options where necessary, and costing for the assembly and non-recurring engineering costs. This helps provide the break-even volumes to justify a product’s market viability.

PCB Sourcing
We have experience in sourcing PCBs and having them assembled in China. This helps to minimize costs with quick turnaround. Any microcontroller programming is done at Locus Engineering to preserve client IP.

PCB Assembly
PCBs can be assembled at Locus Engineering for prototypes and limited production. Surface mount and through hole components are soldered with temperature controlled stations, and inspected with a stereo microscope. Assembly procedures are created for any production run. Higher volumes can be assembled with quick turnaround and competitive pricing.

We have an on-site machine shop to help quickly create or modify new parts. Materials handled include most plastics, steels, brass and aluminum. Parts can be milled, turned, sawn, drilled or bent to repeatable tolerances.

Final Assembly
Final assembly includes mounting assembled PCBs in enclosures, adding other parts, placing labels, and followed by inspection. Special attention is made in the design phase so the final assembly is done quickly, reliably, and with a good final appearance.

Testing to Specification
Products are individually tested to specification before being released to the customer. Special jigs are made for higher volumes.

User Guide Documentation
User guides are provided for our products; these typically include specifications, rules for safe operation, description, carton contents, operation, maintenance, troubleshooting, warranty, and support information.

Engineering Drawing Set
Locus Engineering provides a complete documentation package for custom products. This would include the product specification, schematics, parts lists, PCB design and Gerber files, mechanical drawings, assembly drawings, and user guides.