Your engineering project, from rough idea to demo day.

Describe what you want to build. Plinth generates the parts list, wiring, schedule, firmware, and CAD, with an AI engineer beside you the whole way.

Watch it build ↓

The gap

Every great build dies the same death: three weeks lost figuring out what to buy, how to wire it, and where to start.

Plinth closes that gap in one sitting.

How it works

Watch a sentence become a build

01 · Describe

Start with a sentence.

Tell Plinth what you want to build and your constraints: budget, timeline, experience.

new project

What do you want to build?

A line-following robot for my mechatronics class, under $80
Budget $8012 weeksFirst PCB
Generate project

02 · Generate

Get the whole plan, sourced and scheduled.

The agent pipeline drafts the full project: subsystems, parts with live supplier pricing, schedule, wiring, firmware, CAD, PCB.

overview · line-following robot
$73.80
budget
12 wk
schedule
4
subsystems
Sensing
Drive
Control
Integrate

03 · Refine

Change anything. Everything updates.

Swap parts, redraw wiring, run rule checks with the assistant. Every change is versioned.

wiring · drag to edit
export png / svg

04 · CAD

Open your enclosure in real CAD.

Parametric starters for the enclosure and mounts, sized to your parts. Export STEP or STL and keep modeling in the tool you already use.

cad · enclosure starter

05 · PCB

Design the board. Pass the checks.

PCB Studio takes you from schematic to a rule-checked layout, then packages everything for fab handoff.

SchematicERCFootprintsManufacturing

06 · Protect

Patent prep, drafted from your build.

Prior-art search, claims, and a specification draft generated from your project - with an attorney introduction when you are ready.

patent prep · claims draft

claim 1 · independent

A line-following vehicle comprising: a reflectance sensor array; a controller configured to compute steering from…

07 · Ship

Walk into demo day with proof.

Export your files, hand off to a fab, and publish your project page for demo day.

billboard · demo day

senior design · 2026

Line-Following Robot

plinthdesign.org
publishedplinthdesign.org/p/4kf2… advisor view - no account needed

Outcomes

Weeks of planning become an afternoon.

1 14

idea to deliverables

0

hallucinated parts

every component checked against live supplier data

100%

versioned

every change tracked

Deliverable completeness · planning time saved

The workspace

Everything a build needs, in one place.

Each project opens a full set of linked tools, generated together and ready to refine.

BOM

Sourced bill of materials

Live pricing and stock from DigiKey and other distributors, checked at generation time so nothing on the list is a guess.

Wiring

Wiring studio

An interactive wiring canvas you can drag, edit, and export as PNG or SVG for your report.

PCB

PCB Studio and rule checks

Schematic, footprints, and electrical rule checks, with a fab-ready handoff when you are done.

Schedule

Schedule

A week-by-week plan with milestones sized to your semester, not a generic template.

Firmware

Firmware and CAD starters

Starter code for every subsystem and a CAD starting point, so you never open a blank file.

Assistant

AI assistant

An engineer docked in your workspace. Ask it to explain a part, change a value, or regenerate a section.

Founding story

Built by someone who has been on the team.

Cade Kaminski · Founder

I'm a solo founder pursuing a mechanical engineering degree - a creator and a builder at heart. I love making all kinds of projects with teams of people who are passionate about what they do. The idea that started Plinth comes straight from those experiences: leading teams and running head-first into the problems that show up whenever you start something new.

Plinth turns a project idea into a real, buildable plan. It sources parts with live pricing, generates wiring diagrams you can drag and explore, hands you CAD and PCB starters, and lays out a week-by-week schedule that drops the right tutorial into the right week - along with much more. The differentiator is the prioritization of education over having everything done for you. Users gain a deep understanding of what they build, and when they finish, they walk away with a genuine skill set, not just a finished object.

Here's my bet. In 2024, AI visibly changed who can ship software. That same shift hasn't reached hardware. Students without a network, without expensive maker programs, without an easy internship face a barrier that's far harder to overcome when building anything physical. Plinth is how that changes. The value the platform already creates - and its potential with the right minds behind it - is vast, and these few words only scratch the surface of the problems it can solve.

Roadmap

Where Plinth goes from here.

  1. 01 · NowLive

    The platform is live

    The full build pipeline runs today: a sourced bill of materials with live pricing, draggable wiring diagrams, CAD and PCB starters, and a week-by-week schedule that teaches as you build.

  2. 02 · PilotNext

    A paid pilot at Mines

    Put Plinth in front of real capstone teams, prove the model against the way engineers actually work, and let their feedback sharpen every part of the product.

  3. 03 · ExpandPlanned

    The next five schools

    Take what proves out at Mines to the next five programs, adapting to each one’s courses, constraints, and the projects their students care about.

  4. 04 · TeamPlanned

    Build the team

    Bring on Mines students who fill the gaps I lack in business and marketing, so Plinth can grow faster than one founder can push it alone.

  5. 05 · VisionThe bet

    Close the hardware gap

    Do for building physical things what AI did for shipping software - make it possible for anyone with an idea to build it, regardless of their network or budget.

I’m building Plinth either way. The right backing and the right people just get it to the students and programs that need it faster.

Launching soon

Be first on the platform.

Plinth is opening soon. Leave your email and you'll get launch news, early access, and a head start on your next build.

Launch updates and early access only - no spam, unsubscribe anytime.

39.7392° N105.2216° WSOLAR 20W