John
Kawola

The smallest bet in the biggest room

Ask most people to picture a 3D printer and they imagine something the size of a microwave, oozing out a phone case in slow ribbons of plastic. John Kawola spent the back half of his career making the opposite thing real - printers that resolve features about two microns across, smaller than the width of a human hair, the kind of precision that lets a scientist grow a tumor in a tiny plastic channel or thread a needle through a microfluidic chip.

That is the work at Boston Micro Fabrication, the company Kawola ran as CEO of Global Operations from 2020. BMF's specialty is a mouthful - Projection Micro Stereolithography, or PµSL - but the pitch is simple. There was a gap in the additive-manufacturing market where the parts were too small and too precise for anyone else's machines, and BMF planted its flag there. Boston, Singapore, Shenzhen, Tokyo. A company built around the idea that the most valuable parts in manufacturing might be the ones you can barely see.

In 2025 Kawola handed the CEO title to a new president and stepped into the role of strategic advisor. Not a retirement. More like a man who has done this enough times to know exactly when the founder-operator should make room for the next one.

He started by carrying the bag

Here is the detail that explains everything else. Kawola did not arrive in 3D printing as a polished executive parachuting in to scale a hot startup. He joined Z Corporation in 1998, at 30, as the company's very first salesperson. Fewer than ten people worked there. He sold the first 30 to 40 machines himself, one engineer's desk at a time, back when the idea of making prototyping a routine part of the design process was still a sales pitch rather than an industry.

By 2008 he was running the place. Z Corporation became a pioneer of fast, easy, full-color 3D printing, the company that helped convince a generation of engineers and designers that they could print an idea before they committed to it. In 2012, 3D Systems bought it. Kawola had taken a nine-person outfit and helped build a global distribution network around it.

A detour through the robot nursery

Between his 3D printing chapters, Kawola ran something stranger. From 2012 to 2016 he was CEO of Harvest Automation, a company that built autonomous mobile robots for jobs nobody romanticizes - shuffling potted plants around nurseries, moving goods through e-commerce warehouses, doing the repetitive material-handling that wears human backs out. It is the kind of line on a résumé that looks like a swerve until you notice the through-line: take a clever piece of hardware and figure out how to actually sell it into a market that does not yet know it needs the thing.

Then came Ultimaker. In 2016 he took over as President for North America at the open-source desktop printing company, building its footprint across the continent - channel partnerships, brand awareness, the unglamorous machinery of revenue. By the time he left in 2019, Ultimaker had a real American business where there had mostly been an idea.

Why micro, why now

The thing Kawola kept returning to in interviews was applications - not the technology for its own sake, but what someone could finally build because the parts got small enough. Disposable medical devices that go in your body for fifteen minutes and then get tossed. Microfluidic chips. Organoids, the lab-grown tissue models that are quietly reshaping how drugs get tested. One BMF customer built a skin-cancer device using micro-printed parts and two tiny stainless steel needles, engineered to work inside the tumor's microenvironment and strip away the camouflage that hides cancer cells from the immune system.

For Kawola, that is the whole argument. Traditional manufacturing hits a wall when the tolerances get tight enough and the parts get small enough. Micro 3D printing walks through it. He has called organoid and microfluidic-chip development the technology's most promising frontier, precisely because it can produce these devices fast, accurately, and at resolutions other methods cannot touch.

Knowing when to leave

There is a pattern in a career like this that is easy to miss. Kawola has now been at the helm of three companies and the founding salesperson of a fourth, and each time the businesses kept growing after he moved on. He talks about gross margins and real growth the way some executives talk about vision - as the actual scoreboard. And he has a habit, rare in founders and CEOs, of recognizing the moment when the most useful thing he can do is hand over the keys and stay close as an advisor rather than cling to the title.

Two engineering degrees, an MBA, and a career that mostly ran on the unsexy disciplines of selling, distributing, and scaling. The microns get the headlines. The judgment about when to push and when to step back is the part that actually built four companies.

How small is two microns?