Sarcia Design & Engineering

Sole Proprietor, 2010-2018, San Diego CA

In 2009 I began consulting as a sole proprietor, sometimes directly with customers, and sometimes as a subcontractor for other firms. In addition I partnered with various individuals/groups to explore different product opportunities speculatively. I continued this work on and off between different full-time positions and worked on the following projects:

  • Vision Robotics was developing camera-based robotic control systems and had grants from the fruit pickers association to deploy the technology in hydraulically actuated agricultural equipment. I first developed and prototyped a robotic arm that was towed behind a tractor for picking oranges . I then developed and prototyped a clipper mechanism and wrist with clutched joints for pruning grape vines.

    Arm and Pruner

  • Hosso was an early stage company developing a support device for horses who had undergone micro-tearing in their limbs from overuse (traditionally a trigger for euthanasia). I began by researching the physiology and kinematics of the horse limb and creating an analytical model to establish critical metrics and specifications before working with ID and other stakeholders develop a mechanism utilizing an elastomer tension band to simulate/supplement the primary tendon in the fetlock joint. First I validated the performance on a custom test fixture and then then worked with Veterinary researchers at Tufts university to test the device on horses and validate the functionality before handing off the design for commercialization.

    Hosso 1

    Hosso 2

    Hosso 3

  • When the iPad was first released, an inventor wanted to build an articulating bracket that strapped to a headrest and allowed a user in the rear seat to position an ipad. I developed, prototyped, and validated a concept for spring-loaded conical friction joints, and then worked with a Chinese CM to develop injection molds and an assembly process.

    iPad

  • Scent Sciences developed a technology to reproduce programmable scents by selectively boiling a combination of core scent oils. Each scent cartridge corresponded to a specific video game and was controlled by the “scent track” of the game. I worked with ID to integrate the oils and electronics into a cartridge and peripheral that would distribute the scent with a fan.

    Scent Sciences

  • Pelican wanted to enter the mobile device case market, and I worked with a partner ID firm to develop a rugged & waterproof case design and molding structure for the iPhone that operated outside of particularly constraining IP. I also developed a cost-effective friction hinge for an iPad case using Spirole coil pins.

    Pelican 1

    Pelican 2

  • A neurostimulator manufacturer was running into failures in the flexible circuit interconnects in their implantable device. I analytically and empirically root caused the failure to over-strain in the copper layers of a flex circuit and proposed a low-impact solution by reconfiguring the trace distribution in the FPC along with a larger bend radius.

    Neuro

  • A neurostimulator manufacturer was developing a new product where the functional stimulator element needed to the electrically and mechanically connected to a base unit during deployment. Worked with ID and internal resources to develop a compact and reliable design.

  • Human was developing a multi-function hearable that was worn over the ear. I took a reference ear attachment approach and integrated it into the device architecture, and then supported prototyping and validation of the mechanism and electronics integration. The design was particularly successful with regards to comfort and security compared to previous approaches. I additionally supported other integration design efforts and the work results in being named on two granted patents (1,2)

    Human

  • Developed a magnetic attachment and alignment system for a digital picture frame and corresponding stand.

    Picture Frame

  • A pioneer in wearable cardiac monitoring devices wanted to develop a waterproof sleeve for their existing device so that users could shower with the device installed. I designed and prototyped a sleeve using cast silicone that could be easily installed by users while providing the required ingress protection.

    Cardiac

  • I partnered with a flag manufacturing company to develop a concept for a modular battery-powered LED system that could be integrated with their current product line.

    LED

  • Yofimeter was developing a connected insulin testing device. They wanted to explore an insulin injector to accompany that device where small volumes of insulin can be selected and dispensed by twisting a knob. I designed and prototyped a mechanism to accomplish this.

    Insulin 1

    Insulin 2

    Insulin 3

  • A friend who owned a local brewery wanted to dispense beer/kombucha from glass growlers. It was important not to store the growlers with air in the headspace because of concerns of how it would interact with the brews. Existing methods for purging the headspace were not practical. We developed a concept for a device that installs into the growler and facilitates both purging the headspace and charging the growler for dispensing. Concerns over cleanability and complexity kept us from moving forward with prototyping.

    Growler 1

    Growler 2

    Growler 3

  • A large life sciences company had acquired a technology for electroporation transfection where an electric field is applied to a samples in order to facilitate the injection of functional nucleic acids into cells for various protocols such as CRISPR. They wanted to take the core technology and develop a high volume consumable that effectively applied an electric field to the sample and facilitated a streamlined workflow. I developed a series of concepts for how to integrate electrodes into a pipette tip and connect to the device. I then simulated the electric fields using EMS works and refined the design for moldability before working with a prototype mold house to build engineering samples for the company to test. I also did system architecture work with EE to develop an 8-station pipette and docking station.

    TF

  • I supported an ID firm who had developed concepts for a tray, brochure holder, and marketing display to be deployed in doctors’ offices as part of a hearing aid launch. I took the concepts and created manufacturable mechanical designs then delivered fabrication drawings to a prototyping resource.

    hearing aid

  • I supported an ID firm developing a desktop PC enclosure. I designed a manufacturable door hinge and latch mechanism and then then transferred the design to internal resources.

    PC

  • Supported mechanical integration of a bionic ankle being developed at Hugh Herr’s lab at the MIT Media Lab.

    Ankle

  • Crane Payments is a POS cash and payment handling company that was developing a concept for an automatic cash handling robot for use in convenience stores. The device automated placing cash into a secure bag and then heat-sealing the bag so it was ready for pickup by cash-handling armored car services. I developed an architecture for the mechanism and built and tested a prototype of the device.

    Crane1

  • Worked with a group of spine surgeons to develop specialty surgical devices. One was a bone punch with a modified tip for use during cervical and lumbar spinal procedures. Another was a device to help facilitate suturing and prevent dural tears during spine surgery. Developed design concepts and built prototypes before handing the designs off to a manufacturer. The work resulted in a granted patent and the company was acquired after commercialization.

    Kerrison 1

    Kerrison 2

  • Supported an early stage startup with electromechanical integration for a novel bicycle navigation device.

    Navigation

  • A large industrial conglomerate produced power supplies for semiconductor fabs, industrial test and measurement, as well as other specialty applications. Because of the low volume/ high value nature of the product mix they were undertaking an effort to modularize the hardware architecture to improve economies of scale. I worked with the EE lead to develop interconnect and power distribution strategies to support this effort. In some applications there was a need to enable N+X redundancy and hot swap ability in a set of water-cooled power supply banks. I developed concepts to support this effort including a specialty hydraulic tool for installing/removing fasteners from fixed cold plates, a spring loaded ramp mechanism for clamping the thermal interface with fixed cold plates, and a no-drip fluid disconnect with removable cold plate.

    PSU

  • iCache had a concept for a phone case that doubled as a smart wallet which stored/presented different credit cards and loyalty programmed barcodes. I researched magnetic strip readers/writers and emerging on-card chip technologies and then worked with internal resources to build an electrical schematic and layout before working with ID to develop a detailed mechanical design.

    iCache

    iCache2

  • Helped a local molecular diagnostics company develop concepts for sample and reagent management for use with their fluids platform.

    Moelecular

  • Partnered with a Director of Photography in the TV & film production industry to build a control box for use on sets that interfaced existing DMX control lighting with emerging digital control programs. The box integrated wifi routers and included modules to translate IPv6 data to DMX and provided additional I/Os capabilities.

    LiteLink

  • A friend designs, fabricates, and installs specialty architectural elements for restaurants and high-end residences. I supported several projects with detailed design, structural analysis, and generating substantiating engineering documentation for permit applications.

    TDS

  • I partnered with a friend who has a successful business producing application-specific quick tools integrated into a carabiner form factor (eg. skate and snowboard tools). He prompted me to design a carabiner-based phone charger and power bank. I developed and prototyped designs using a reference power supply schematic/BOM and got a quote for tooling and production from a Taiwanese CM. We did not move forward with the concept based on lukewarm user feedback.

    Carabiner 1

    Carabiner 2

    Carabiner 3

    Carabiner 4

  • I responded to a design prompt seeking solutions for lighting latrines in refugee camps that addressed specific challenges around manufacturing, power generation, and security. The proposed solution utilized a robust direct drive generator that could be charged by users. By requiring user-charging the device would be less valuable outside of the specific application and therefore less susceptible to theft.

    Lamp 1

    Lamp 2

    Lamp 3

  • I worked with a group of industry insiders to develop a concept and business pitch for a device that sampled urine from a toilet bowl and used molecular diagnostic techniques to identify specific proteins and other bio-markers for health monitoring. I researched the different diagnostic methods and integration requirements and then developed an initial device architecture before creating documentation for fundraising.

    iph1

    iph2

    iph3