3D printer technology is improving so fast that I find myself replacing printers more often than I replace the contents of my sock drawer. What did I do with all those printers I replaced?

Several days ago, someone posted a picture of a 7-11 vacuum tube tester on LinkedIn, asking how many people remembered those. I didn’t think much about it at the time but seeing that photo reached further back than I anticipated. It opened a door to my past and provided a quiet realization with one of the traits that has shaped my life.

Many decades ago, as I was trying to determine my career, my uncle made me an offer I couldn’t refuse. He was retiring from his TV repair shop. If I would pay for shipping, he would send it all to me. Three large boxes, each about the size of your basic refrigerator. To anyone else, they might have looked like scrap. To me, they were treasure chests.

The boxes were full of tubes, voltmeters, tube testers, and hundreds of other things he had acquired during his career. The smell of old electronics, the weight of glass tubes in my hands, the mystery of components I barely understood, it was intoxicating. They weren’t just parts. They were possibility, trust, and a quiet vote of confidence from a man who didn’t even know me well.

I can’t say I used everything. I never did find a use for all the kilowatt Navy transmitter tubes, but those boxes firmly set me on my engineering path. They told me, without ever saying the words, that I belonged in that world.

When the time came for me to move into an apartment, I reluctantly accepted that I couldn’t keep it all. That was harder than I expected. Instead, I found someone else exploring the world of electronics and gave the majority to him. No charge. I just wanted it to go to someone who would actually use it, someone who might feel that same spark when they opened the box. Okay, I kept the voltmeter. I was downsizing, not abandoning.

When I acquired my second 3D printer, I did the same thing. I looked for a good home for my first printer, somebody who would use it, not just store it. I’m on my fourth 3D printer now. Numbers two and three were also passed along to people looking to get into 3D printing. And when I upgraded my laser etcher, I gave away my old laser as well.

All of them were in good working condition. I wasn’t unloading junk. I simply wanted better. I’m not naïve—I know at least one of those printers probably never came out of the box. But that was never the point. The point was the opportunity. The point was the gesture.

My uncle made a choice that still humbles me. Rather than sell his tubes and equipment and pocket a few hundred dollars, he chose to invest in a young man he barely knew. I can’t say his equipment made me who I am, but it unquestionably nudged my life in a direction that became a career, a livelihood, and a lifelong identity. I’m sure I thanked him at the time. But looking back now, I realize gratitude has a depth that simple words rarely reach.

I like to believe that by giving my printers away, I’m keeping that thread alive—paying my uncle’s kindness forward in the only way that feels authentic to me.

Today you can buy a very capable 3D printer for under $300. But that’s still a risk on something you may never use. Not everyone embraces the hobby. Not everyone is willing to invest hours learning slicers and tolerances and failed first layers. Sometimes what people need most isn’t a discount—it’s a door opened just wide enough to step through.

Let’s be honest: my surplus printers weren’t state of the art. They were yesterday’s technology. But they still worked. They still created. And sometimes “good enough” is all it takes to ignite something lasting.

3D printers aren’t the only tools that deserve a second life. That computer you replaced to run Windows 11 can run Linux beautifully. The CNC you outgrew still cuts wood. The sewing machine that only does straight stitches can still teach patience and craft. In the right hands, old tools are not obsolete, they are invitations.

Why do I care? Because despite our social awkwardness and our tendency to argue over minutiae, engineers are a community. Nothing meaningful is designed by one person alone. Every schematic rests on prior art. Every innovation stands on foundations laid by people who may never see the final result.

When we help someone take their first step into technology, we aren’t just clearing space in our workshop, we’re strengthening that chain. And while not every attempt blossoms into brilliance, the ideas, insights, and unexpected lessons I’ve received from younger engineers over the years have been worth far more than any printer or laser I ever gave away.

We are a community. And sometimes the smallest act of generosity doesn’t just change someone else’s trajectory, it quietly honors the one that changed yours.

 

---

---

And of course, today’s song from Songer… Prints of Tomorrow

 

© 2026, Byron Seastrunk. All rights reserved.