3D printing - A beginner's observations and some practical applications

tl;dr: 3D printing won't change your life but it will make your life 1% better in unexpected ways.

Last year, I spent a year-long work trip with someone who was very into 3D printing. To be frank, I initially had zero interest in it. From what I understood of 3D printing, it was expensive, required mechanical experience, coding knowledge, and ultimately not worth what you put into it.

Fortunately, my colleague didn't care what I thought about his hobby and bought a cheap printer to keep himself occupied during downtime at work. Originally, it was just something that occasionally made noise in the background. As the days went on, however, more and more doodads began to appear around the office. A cable organizer here, a desk decoration there; nothing earth-shattering.

The thing that really changed my mind, funny enough, was a simple powder scooper. During our trip, we shared a terribly designed creatine bottle with a narrow neck and no scooper. We spent months pouring out white powder by eyesight alone like amateur crackheads and I will never buy this bottle again. My colleague printed out a scooper with a long neck and the problem went away.

That was the key turnaround that changed my mindset - I had a problem; we printed a solution.

I got back from my trip and decided to try it out myself. After some serious deliberation on how committed I was to this, I purchased the Bambu P1S. It’s not the cheapest option for someone just starting and I chose a Bambu printer because a Youtuber argued that your best way to have fun as a beginner was to pick a printer that “just worked.” It was a compelling enough reason for me to shell $900. (no, I’m not sponsored, just telling my story.)

Some of my favorite prints:

• Long Scooper: the one that started it all for me. This scooper saved us a ridiculous amount of time and effort for what it is. It also gets to the heart of what 3D printing is to me - solving your individual problems with simple solutions.

• Pill Organizer: it’s got a lever that spins a wheel around, opening a different chamber for each day of the week. This one really opened my eyes to what is mechanically possible with just basic PLA plastic. People much smarter than me figured out ways to print devices with hinges, springs, and levers all without needing a single extra tool.

• Scour Pad Holder: This is the one that made most people around me go, “huh, that’s pretty neat.” You’re right, it is. No one likes touching a moist scour pad.

• Slide Wallet: I spent $74 on a SECRID cardslide wallet. While I don’t regret that purchase - I used it faithfully for four years ongoing - I did feel a bit foolish when I realized I could 3D print the same mechanism for $1.50.

That’s not to say anything about the decorative / gifting aspect of 3D printing either. I 3D printed a giant Charizard for my friend’s son the size of his head in eight hours.

That said, there is a mechanical learning curve to even the most user-friendly printers. With the Bambu series, I’d say that if you’ve ever built IKEA furniture or a 100+ piece Lego, assembly is pretty straightforward. It’s the troubleshooting that will get you. Even with basic filament and simple projects, I still encountered the nozzle clogging, filament stuck in the pipes, and bed adhesion problems.

This is a hobby that requires you to be willing to experiment and look up solutions. From what I understand, some printer brands are tougher than others so the learning curve will vary depending on your gear. I quickly learned that there’s numerous ways your print will mess up and your project will look like what the community calls the “spaghetti monster.” Unless you’re a born tinkerer, this is probably the most frustrating part of the process. However, accumulating knowledge to diagnose and solve the problem is very rewarding. I learned that the third slot on a Bambu machine is statistically more likely to jam and 0.5 kg spools are more likely to clog than 1.0 kg ones. Turns out that a lithophane needs to be printed vertically and only looks good with a white filament.

Overall, I enjoyed my time with my 3D printer and I don’t regret my purchase at all. It’s a hobby that provides near-instant gratification - you find the thing you want to print - or design it yourself - and boom, it’s sitting on your printer in a couple of hours. While I’m just taking files from the community and printing the .stl file, the skill ceiling is also very high once you add hardware to your projects (e.g. screws, ball bearings, Raspberry Pi). I’m going to continue to learn and I’m excited about where I can take this machine.

Some questions for the community:

1. If you have a 3D printer, how deep in the rabbit hole are you? Are you making your own CAD files?
2. What’s your favorite print? If you don’t own a printer, what’s a cool 3D print that stands out in your mind?
3. What’s a problem in your life where you think you could 3D print a solution?