Mechanical Engineering / Product Development

Precision Mechanical Design, LLC, is a Santa Barbara, California based Mechanical Engineering and Design consulting firm that has been providing mechanical engineering design services for the following industries since 2005:

  • Medical Devices / Surgical Robotics

  • Aerospace / Defense

  • Optical - Mechanical Systems / Infrared

  • Motion Control

  • Electronics

  • Consumer Product Development

Precision Mechanical Design provides a complete design through all development phases of a project:

  • Brainstorming / Problem definition - Scheduling / Project Timeline / Hours Estimate

  • Initial Design Concepts through final Design Concepts in 3D CAD (Solidworks)

  • Detailed Mechanical Design / Drawing Package

    • Detailed Mechanical Component Drawings for Fabrication

    • Wire Harness Drawings for fabrication when needed

    • Detailed Bill of Materials including every last screw, nut, bolt, retaining ring, etc. to define the design

    • Quotes from fabricators for custom components (machine shops, sheet metal shops, mold vendors, etc.)

Clients range from startups without a full-time engineering staff, to larger companies that are in a time crunch that would like to outsource projects to get them completed in a quick, efficient manner.

PMD's primary design tool is Solidworks "Premium" version.  James Cuevas, Owner and Principal Engineer, has been designing using SolidWorks on a daily basis since 1997 (over 25 years).  PMD is always able to use the latest version of SolidWorks (Currently version 2025), and keeps a few older versions running for customers requiring slightly older versions.

Sample Optical-Mechanical Device

Sample Optical-Mechanical Device

Sample Minimally Invasive Surgical Instrument

Sample Minimally Invasive Surgical Instrument

Sample Bill of Materials (BOM)

Sample Bill of Materials (BOM)

Sample Custom Gearbox

Sample Custom Gearbox

Handheld Device Overmold Early Layout (Example of Advanced Surfacing in Solidworks)

Handheld Device Overmold Early Layout (Example of Advanced Surfacing in Solidworks)

Sample Project Schedule

Sample Project Schedule

Semple Medical Device

Semple Medical Device

Sample Custom Geared Motor

Sample Custom Geared Motor

Sample Motor Torque Constant / Back EMF Calculations

Sample Motor Torque Constant / Back EMF Calculations

Sample Magnetic Flux Density Calculations

Sample Magnetic Flux Density Calculations

Sample Planetary Gearbox

Sample Planetary Gearbox

Sample Custom Geared Motor

Sample Custom Geared Motor

Sample Wire Harness 3D Model

Sample Wire Harness 3D Model

Sample Wire Harness 2D fabrication drawing

Sample Wire Harness 2D fabrication drawing

Sample Wire Harness Schematic

Sample Wire Harness Schematic

Worm / Worm Gear Models created for use in custom gearing designs

Worm / Worm Gear Models created for use in custom gearing designs

Sample Handheld Electronic Device

Sample Handheld Electronic Device

Sample Basic Mold Tooling

Sample Basic Mold Tooling

Sample Shaft Drawing with GD&T

Sample Shaft Drawing with GD&T