Engineers who actually build hardware.

    How we help

    • Design from scratch or work on your existing project

      Start a part or assembly from a blank canvas, or pick up where your current project left off.

    • Review part files for manufacturing feasibility

      Bring a CAD model. We mark it up for printability, machinability, tolerance stack, and cost — before you commit.

    • Prototype engineering

      We work with you until your part is as perfect — or better — than you imagined. Send us a sketch, reference, or idea. We'll even travel to you at no cost anywhere in the High Desert, CA.

    • Mechanical and design engineering

      Hands-on help building prototypes, brackets, end-effectors, and custom mechanical assemblies for robotics teams.

    • Small-scale production manufacturing

      We manufacture your parts in plastic and metal. If we can't, we'll point you to a shop that can assist you better.

    • What software do we use?

      We primarily use SolidWorks for design, Fusion 360 for CAM, and FreeCAD on occasion.

    Designing a plastic product for production? See our dedicated injection molding design & DFM services — functional, tooling-ready CAD built from prototype to mold.

    Selected projects

    Robotics & R&D

    A sample of robotics, mechanical, and prototyping projects — from senior design to open-source hardware upgrades.

    Senior Design Showcase: Computer Vision for Smart Recycling

    A clip of what our UC Davis senior design team built, demonstrated at the Graduate Poster Showcase in April 2024.

    Aluminum Stand for Robot

    Aluminum Stand for Robot

    A lighter, portable stand built from 4040 aluminum extrusions to move the robot around UCD, with connectors that match a commercial-kitchen fryer basket.

    Wooden Prototype Stand for Robot

    A spare-wood proof of concept to validate how the robot performs in inverse gravity before committing to the aluminum build.

    Upgrade Guide: +161% Torque on Joint 3 of a 7-DOF Arm

    Upgrade Guide: +161% Torque on Joint 3 of a 7-DOF Arm

    Open-source upgrade guide bringing the J3 holding torque from 0.39 Nm up to 1.02 Nm — a 0.63 Nm (161.54%) increase.

    Portable Conveyor with Teensy Speed Control

    A custom conveyor belt with reworked electronics — Teensy microcontroller driving the robot's motor drivers and pulley system.

    Built the Open-Source AR4 Robot

    Built from online resources and guides, used to test methods of automation in the fast-food industry.

    Shop Fabrication & Grinding
    Custom Stepper Mount & Wiring
    Heat-Shrink Strain Relief
    Cable Gland & Harness Routing
    Torque-Spec Assembly
    Belt-Driven Gantry Platform
    Geared NEMA Stepper Assembly
    R&D Lab in Action
    Custom Gantry Rig Build

    Custom one-off work

    Custom parts for people.

    We also help individuals and businesses with one-off custom work — hubcaps, gears, intake manifolds, rings, phone mounts, and more — measured, modeled in SolidWorks, and made to fit.

    On-site rim measurement with digital calipersCustom hubcap CAD model — front viewCustom hubcap CAD model — angled view

    Custom Hubcaps

    On-site measurement of a customer's rims and spoke pattern with calipers to design custom-fit hubcaps.

    Six-runner intake manifold CAD model — angled viewIntake manifold with fuel rail and throttle-body flangeIntake manifold CAD model — side view

    Custom Intake Manifold

    A full-size, 22.5-inch six-runner intake manifold modeled in SolidWorks — plenum, runners, throttle-body flange, and fuel rail — then split into sections and 3D printed.

    Original cracked actuator gear measured with calipersReplacement helical gear CAD model — hub sideReplacement helical gear CAD model — face view

    Bentley Actuator Gear — Reverse Engineered

    The original plastic helical gear from a Bentley actuator had cracked at the hub. We measured it with calipers and modeled a 59 mm tapered-helix replacement in SolidWorks, including the hub and insert bores.

    Modified BMW E36 DME cover CAD model — angled viewModified BMW E36 DME cover CAD model — top view

    BMW E36 DME Cover

    A modified DME (engine computer) cover for a BMW E36, reworked in CAD with custom port flanges and mounting bosses, then 3D printed.

    Tapered reed spacer CAD modelDimensioned drawing of the tapered reed spacerTapered reed spacer CAD model — angled view showing the taper

    Tapered Reed Spacer — 1999 Honda CR125

    An 83 × 64 mm reed spacer for a 1999 Honda CR125 that tapers from 10 mm to 4 mm, delivered with a fully dimensioned drawing.

    Custom signet ring CAD model — side viewCustom signet ring CAD model — angled viewCustom signet ring face with raised logo

    Custom Signet Ring

    A signet ring built around the client's logo — a raised emblem on the face and an ampersand badge on the side — modeled in SolidWorks and 3D printed.

    Dragon spoke close-up showing the twisted helical finDragon spoke close-up showing the threaded end

    Dragon Spoke — Propel Pedal

    Straight-pull bicycle spokes for Propel Pedal, wrapped in a twisted helical fin, iterated through several revisions and 3D printed — plus aero-profile test spokes.

    Three-spoke toy steering wheel CAD model — angled viewThree-spoke toy steering wheel CAD model — front view

    Toy Ford Steering Wheel

    An 8-inch, three-spoke replacement steering wheel for a toy Ford, with a bolt-on hub insert, modeled in SolidWorks and 3D printed.

    Custom phone mount bracket CAD model — front viewCustom phone mount bracket CAD model — angled view

    Custom Phone Mount

    A 7-inch phone mount bracket with slotted mounting holes and a row of retaining fingers, designed around the client's setup and 3D printed.

    Louvered light housing for a Chevy model replica — angled viewLouvered light housing for a Chevy model replica — front view

    Chevy Model Replica Lights

    Tiny 11 mm louvered light housings with an integrated mounting post, designed for a Chevy scale-model replica and 3D printed.

    Cartographer V4 probe mount CAD model — angled viewCartographer V4 probe mount CAD model — top view

    Cartographer V4 Probe Mount — Sovol SV08

    A custom mount for the Cartographer V4 bed probe on a Sovol SV08 3D printer, iterated through several versions, with the final version printed in PPA-CF carbon-fiber nylon.

    Solar farm 3D model with the access roadSolar farm parcel with 48 panel rows inside the perimeter fenceConcrete equipment pad with the inverter and transformerEntrance gate and center access road between the panel rowsSolar farm site plan drawing with dimensions and callouts

    Solar Farm Site Layout

    A 660 × 660 ft solar farm modeled in 3D and drawn in SolidWorks: 48 panel rows, a 1,250 ft access road into a 26 ft all-weather interior road with a 120 ft hammerhead turnaround, perimeter fencing, an entrance gate, and a concrete equipment pad for the inverter and transformer.

    Silhouette of an upcoming Deuce Splitter design
    Patent Pending

    Deuce Splitter — Under Wraps

    Our newest work with Deuce Splitter is still under wraps. We can't wait to show you more.

    Silhouette of an upcoming Detachii product
    Patent Pending

    Detachii — Coming Soon

    We're engineering a new product with Detachii LLC, and it's still under wraps. We can't wait to show you more.

    In-house projects

    Built for our own shop.

    Tools, fixtures, and upgrades we design in SolidWorks and build for ourselves, using the same process we use for client work.

    Robotic fry-station gantry CAD model under a kitchen hoodGantry frame with the AR4 robot arm on its travel rack

    Robotic Fry-Station Gantry

    An R&D gantry that carries an AR4 robot arm on a travel rack over a commercial fryer, built from 4040 aluminum extrusion on casters, part of our fast-food automation work.

    Aluminum-extrusion workbench CAD model — angled viewAluminum-extrusion workbench CAD model — front view

    Aluminum-Extrusion Workbench

    Our shop workbench, designed in SolidWorks around 4040 T-slot aluminum extrusion with a birch plywood top, an upper shelf, and leveling casters.

    Assista CNC utility knife body with the logo cut throughAssista CNC utility knife body — angled view

    Assista CNC Utility Knife

    Our utility knife body, with the Assista CNC logo cut through the grip, modeled in SolidWorks and 3D printed. We also make personalized versions for customers.

    Parametric rugged box with the lid openParametric rugged box — angled viewParametric rugged box — side view showing the latches

    Parametric Rugged Box

    A parametric storage box with a hinged lid, latches, and a seal, driven by a few key dimensions so it can be resized for whatever it needs to hold.

    Space heater held under the desk by the printed mountPrinted heater mount being bolted to the extrusion frameUnder-desk heater mount CAD model

    Under-Desk Heater Mount

    A printed cradle that bolts to the aluminum-extrusion frame under our desk and holds a small space heater, designed around the heater's footprint.

    Printed spool holder parts with 608 bearingsAssembled spool holder next to a mallet for scaleSpool holder assembly CAD model

    Prusa Mini Spool Holder

    A bearing-mounted filament spool holder for our Prusa Mini, with printed rods, brackets, and spacers riding on 608 bearings.

    Nozzle rack CAD model — front viewNozzle rack CAD model — angled view

    Nozzle Rack for Our Bambu Lab H2

    A wall-mounted rack that organizes spare hotend nozzles for our Bambu Lab H2 printer in two rows of hex pockets and slots.

    Clamp-on desk bin CAD model with the screw clampClamp-on desk bin CAD model — angled view

    Clamp-On Desk Bin

    A desk-side bin with a screw clamp and ball joint, so it clamps to a table edge and angles where you need it.

    Bottle holder CAD model — angled viewBottle holder CAD model — side view

    Bottle Holder

    A snap-in bottle holder with a bolt-on base, printed in PLA on our Prusa Mini as a fit test.

    Snap-in cable clip CAD model — angled viewSnap-in cable clip CAD model — profile view

    Snap-In Cable Clip

    A 45 × 15 mm snap-in clip for 11 mm cable runs, designed in SolidWorks and 3D printed.