How I Brought My First Product to Market - Idea to Small Business

Noam Aizenberg · 2026-05-21 ·▶ Watch on YouTube ·via captions

A mechanical engineering grad with no business experience designed, manufactured, and shipped a portable heated massager for TMJ disorder — going from a notes-app idea to $50K/month in revenue with ~$25K in savings, no investors, and no prior PCB or business experience. The video is a full end-to-end account of every major decision, mistake, and lesson along the way. ---

Key Concepts

Concept	Definition
TMJ Pen	A portable electromechanical device combining hot-pack-level heat and vibrating massage pressure, designed specifically for TMJ disorder sufferers — a market with virtually no direct competition
Easy mode product selection	Choosing a product that is small, low-MOQ, shippable cheaply, self-manufacturable, and in an underserved niche with a personal backstory
Block diagram → component list → schematic → PCB layout	The step-by-step process for designing a PCB from scratch with no prior experience
LCSC + EasyEDA + JLCPCB trio	A vertically integrated ecosystem for component sourcing, PCB design, and manufacturing — boards for under $5
Crowbar circuit	A hardware safety mechanism that shorts the battery across a polyfuse when a comparator detects overtemperature, cutting power without permanently damaging the board
General wellness guidelines (FDA)	FDA framework allowing products to reference specific conditions (e.g., TMJ disorder) without triggering medical device registration, so long as no treatment/cure claims are made
Meta ad strategy	Dumping all available video content into a single broad ad set and letting Meta's AI optimize, rather than manually segmenting funnels
MVP-first philosophy	Ship an imperfect product to real customers as fast as possible to get feedback, generate revenue, and iterate — avoid over-engineering before validation

Notes

Career Background & How the Business Started

Studied mechanical engineering but forced himself into CS and EE classes to understand full product design
Applied widely to product design roles; rejected everywhere without interviews
Joined a 5-person ADU startup in Austin as an intern; received full-time offer of $70K as "Junior Engineer" with 0.25% equity
Decided the title, pay, and upside didn't justify the opportunity cost vs. going independent
Moved back to Philadelphia; took a part-time job assembling and packing orders for a friend's product business at $40/hr
Gave him free workspace and time to prototype his own product on the side
Key reframe: didn't "quit his job" cold — found a low-risk bridge role that subsidized his time to build

Idea Selection — Why the TMJ Pen

Kept a running notes-app list of product ideas; the TMJ pen won out for structural reasons, not just personal ones
Personal: his TMJ disorder was worsening; jaw locked closed most mornings and eventually permanently
Market gap: nothing existed that combined massaging pressure with hot-pack-level heat simultaneously
Checked all "easy mode" boxes:
Great founder-story for marketing
Small form factor → cheap 3D printing, low shipping cost
Electromechanical → low MOQs from suppliers
Literal painkiller in an underserved niche with near-zero competition
Fully self-manufacturable from an apartment

PCB Design From Scratch

Had EE coursework but had never designed a PCB; used YouTube to bridge the gap ("YouTube-induced confidence")
**Step 1 — Functional requirements**: list everything the device must do
Adjustable heat, adjustable vibration, indicator LEDs, battery-powered, rechargeable
**Step 2 — Block diagram**: map each function to a circuit block, then find an IC that performs each block
Examples: TP4056 for Li-ion charging; MOSFET transistor circuit for motor driving; boost converter to step 3.7V battery up to 7.2V for motor and heater
**Step 3 — Component selection**: use datasheets religiously — they specify exactly which external components to use and how to wire them
**Step 4 — Schematic → Layout**: place and connect components in EasyEDA; connect pins per schematic
Software stack: EasyEDA (free, browser-based) + LCSC (component database/seller) + JLCPCB (manufacturer)
Find part on LCSC → copy part code → search in EasyEDA → symbol and footprint auto-populate
One-click export to JLCPCB for manufacturing; boards under $5

Prototyping the Electronics — Key Iterations & Failures

V1: forgot to add ISP programming pins; had to learn 6-pin ISP programming, Microchip Studio, and binary export from Arduino IDE
V1 first power-on: smoke — inductor and boost converter couldn't handle the load; wrong component selection
Subsequent revisions added:
Correct 6-pin spring-loaded ISP connector
Battery protection circuitry (eliminated need for pre-protected batteries)
Voltage reading capability
ESD protection
Temperature control problem: PWM-only control meant too-long heat-up time and inability to maintain temperature against skin
Wanted clever solution: measure heater resistance change via shunt resistor to infer temperature
Failed — heating element is nichrome, which barely changes resistance with temperature
Solution: just used a thermistor (resistance drops as temperature rises; voltage-divider readout to microcontroller)

Safety Engineering — Redundancy for Overtemperature

Failure modes that could cause tip to overheat were the critical risk (device contacts face)
Layered safety stack:
Comparator monitors thermistor voltage; when threshold exceeded, output flips to 3.3V
3.3V triggers a triac, which shorts battery to ground
Polyfuse blows first, cutting all power — then self-resets after current stops
Result: no single component failure can cause overheating

Mechanical Design Iterations

~190 prototypes over ~2 years; consistent hexagonal pen-form factor throughout
Early mistake: over-engineered vibration decoupling (motor mechanically isolated from casing) — scrapped for MVP simplicity
Key design priorities: minimize part count, ease of assembly, ease of manufacturing
Component retention evolved:
Snap-fit PCB insertion from front (vs. top) → easier assembly, less component damage risk
Zip-tie channel embedded inside casing wall → dual-purpose cable management + motor retention (no extra part)
Eventually: screws retained the cap, tip, and thermistor simultaneously
Button design went through ~5 iterations; settled on two-color printed button cover (planned graphic panel membrane was deferred as MVP sacrifice)
Casings switched from horizontal to vertical print orientation → ~50 units per print bed

Vibration Noise — A Painful Debugging Story

Noise sources were interconnected: loose battery/PCB rattling against walls, warped print walls, cap fit
Tried: flipping motor orientation, screwing in motor, gluing motor, foam tape — none fully solved it
Breakthrough appeared to happen by accident — then discovered the "fix" was actually a prototype motor with a shorter shaft
Production motors had longer shafts → larger eccentric moment → more noise
Switched to shorter-shaft motors for all production units
Residual electrical noise discovered much later: underpowered filter capacitor + PWM frequency too low (audible whine)

Business Formation & Patent Decision

Formed LLC and business bank account early; keeps personal/business finances separate for liability protection
Decided against pursuing a patent; reasoning:
A patent only grants the right to sue — requires thousands more in legal fees to enforce
Broad patents are expensive (tens of thousands); narrow patents are easy to design around
Chinese competitors are practically unsable anyway
Worst case without patent: fail, lose no extra money, learn a lot
Worst case with patent: fail, lose tens of thousands at the worst possible time
Theragun example: had patents, still got copied everywhere, survived by being the premium brand
Exception cases where patents may make sense: Amazon-primary businesses, investor/licensing plays, genuinely novel deep tech

Getting First Customers

Started by posting YouTube videos to TMJ subreddit and engineering subreddits
Created Instagram account (MyTMJ Relief); initial strategy: post TMJ resources (blog posts, exercise tutorials), then follow-spam commenters on large TMJ accounts
Bought 200 followers to avoid looking like a ghost account
Went viral on TMJ subreddit by posting complaint-style content with subtle Instagram links
DM'd followers individually to solicit pre-orders; first order was a $15 deposit
Pivoted content strategy from TMJ tips to behind-the-scenes engineering/entrepreneurship journey
First viral video: ~10,000 new followers
Trade-off: audience shifted to engineers/entrepreneurs, not TMJ patients

Crowdfunding Campaign (Indiegogo)

Launched when ~10K followers and working prototype existed; raised $13K total ($7K in first two days)
Bootstrapped the campaign: no paid email lists, no consultants
Tactics: personal DMs to every TMJ Instagram account, text blast to 4 years of contacts, LinkedIn post, Reddit post (moderator-approved), two YouTube videos, influencer shares from TMJ accounts
Positioned as a patient-built product for an underserved market — made genuine relationship-building easier

FDA Encounter

On day 3 of Indiegogo, received FDA email claiming marketing of a medical device without approval/clearance
Had previously researched FDA classification:
Class 3 (implants, pacemakers): requires FDA Approval — very expensive
Class 2 (mid-risk): requires 510(k) clearance — hundreds of thousands of dollars
Class 1 (low-risk): exempt from both, but must register annually (~$10K/year fee) and follow labeling/manufacturing guidelines
Closest predicate categories: "electric therapeutic massager" (Class 1, exempt) or "powered heating pad" (Class 2, but also 510(k) exempt)
FDA email incorrectly cited approval/clearance requirements — those don't apply to Class 1 exempt devices
Key legal escape hatch discovered: **FDA General Wellness Guidelines**
Products can reference specific conditions (e.g., TMJ disorder) if marketed as supporting a healthy lifestyle choice that "may help living with" the condition
Cannot claim to treat or cure — language like "may relieve tension" is acceptable
Most competing heated massagers use exactly this framing and don't appear in FDA databases
Wrote a detailed justification response; FDA replied asking only for minor wording changes (adding "may" before wellness claims)
Net result: no registration required, actual FDA correspondence on file as evidence of compliance

Scaling with Meta Ads

Started running Meta ads in December after batch 2 arrived
Scaled from $20/day → $300/day over ~6 weeks
Best-performing strategy: one broad ad set with all available video content, full control given to Meta AI
No manual funnel segmentation
Best performers included UGC from TMJ-space doctors and videos that didn't explicitly pitch the product
Hit $25K revenue in December, $50K in January

Current State & Batch 3 Preparation

Paused ads and shipping to finalize batch 3 (1,000 units)
Fixes going into batch 3:
Fixed underpowered filter capacitor (electrical noise)
Fixed PWM frequency (audible motor whine)
FCC certification completed
Fixed USB-C charging (previously only worked with USB-A to USB-C cables)
Reduced LED brightness (added resistors)
Switched to rubber-insulated thermistors (previous enamel-coated wires could short against aluminum tip)
Side projects during break: writing a free TMJ book as a lead magnet; testing Formlabs Form 4 resin printer for a limited transparent edition
Goal: $100K/month, then outsource manufacturing/fulfillment/marketing to free time for new product development

Actionable Takeaways

**Pick a product on "easy mode"**: small, cheap to prototype, low MOQ, niche underserved market, personal story — eliminates nearly all upfront capital risk
**Don't quit cold**: find a bridge job that pays the bills and gives you time and space to prototype before going all-in
**Learn PCB design via the EasyEDA + LCSC + JLCPCB stack** — start with a functional requirements list, build a block diagram, then find ICs that map to each block
**Read datasheets**: they specify every external component, value, and wiring detail — most schematic work is just following the datasheet
**Design safety redundancy in layers**: identify failure modes that could harm users and ensure no single component failure can trigger them
**Ship an imperfect MVP**: waiting for perfection delays the customer feedback loop and cash flow that fund improvements
**Research FDA general wellness guidelines** before building any health-adjacent product — the framing of your marketing claims determines your regulatory burden more than the hardware does
**Skip the patent (usually)**: redirect that capital toward product improvement, marketing, and customer service — the ability to out-compete is more durable than a piece of paper
**Post every day, then let the algorithm tell you what works**: organic social volume feeds both follower growth and Meta ad creative testing
**Give Meta full creative control**: dump all content into one broad ad set and let the algorithm optimize rather than guessing at funnel segmentation yourself

Quotes Worth Keeping

If the first product you ship is perfect, you're shipping way too late.

Find a job that gives you the time and supports your ability to build on the side. Only when you have a minimum viable product you're ready to ship should you go all-in.

A patent doesn't shield you from anything. All it does is give you the right to sue someone that allegedly copied your invention.

If you can't out-compete a knockoff, maybe just humble yourself and realize you just need to learn how to become a better businessman.

Selling my first ever product so well that it starts getting copied is already a huge win.