I'm interested how others think about this boundary, at what point does something go from “side project” to “business”? And how do you tell if it’s worth trying to scale vs just leaving as is?
I'm still 3D printing, but now focused on problems like dog and kids toys where I can give away the results.
Because you need your business to be big enough to pay your bills, not just theoretically net positive.
I have made some designs that I thought of selling too. For something like that to work, you need thousands of customers over the time.
It's ok to spend an year or two of weekends working into something that can replace some of your main income. It's really not ok to do that for something that can't.
I see that as a bit of a trap, because people pass on what (to me) seems to be fulfilling work that could support a modest lifestyle and make big-growth choices that either crash them out or saddle their business with debt its market can't sustain.
> suppose you've grown big enough to pay the bills. Does the business still need to scale?
No, that's the acceptable size.
“ This 3D printing business started with the help of my dog, at the time a puppy, and his desire to see my neighbor’s puppy. We (the humans) began talking, and as we ran through a conversation about dogs, the topic came to his trading card business. He’d source cards all over the internet for his daily WhatNot auctions with thousands of followers. Impressive—not only a home business doing real volume, but a lens into a world I had no idea existed.
I eventually noticed he had a 3D printed card stand, and with a printer at home, I offered to make him one myself. “Great,” he said, “I can sell them.””
So a guy selling playing cards started selling the things you 3D printed?
Is that the business?
I'd argue that's a "business", there were sales, supplies, a bottom line, et cetera, it's just the front-end part of the business was in collaboration with someone else.
It was pretty random, but there's all sorts of other 3D printing businesses like this for D&D supplies, tool attachments, et cetera.
As things advanced, we had people ask for logos, and recreating them is really what took time.
There is still one lever here, and that was to increase the price to make that design time actually worth it. If I had to continue, that's what I would have done, but I was still losing my weekends and my free time was just more valuable.
Anyway, these posts always make me think of this https://www.reddit.com/r/NoStupidQuestions/comments/142eg6r/...
It is called the Shoemakers paradox, where the shoemakers kids go barefoot.
Also, the same reason why CNC Milling factories don't tend to produce paperclips. =3
Rule #23: Don't compete to be at the bottom, as you just might actually win.
If there's already income paying the pesky mortgage, you start up an official business as a side hustle. As long as you are showing income even if at a loss, you then get to use that loss as a deduction. If it never pans out to be profitable to the point the tax man strongly suggests the business should close, you close it. In the mean time, you've followed a passion, that even as a loss, still gives financial benefit helping with the pesky mortgage.
I see some light from a door down a narrow alley from the main shopping street, I knew this building was empty for a decade and the store front was still covered in wood planks. Curious I walk into the alley to check out what was going on.
I see a guy jumping around as if dancing with the largest bouquet of flowers I have ever seen. Around him 5-7 similar giant vases with layered compositions. Each with enormous exotic flowers in the center.
Woah, what is that? I asked. He looked up and said loudly this is me!
I said it looked stunning and asked how long he was doing this. He said, I will only do this for 2 weeks and ill be happy when it is over! I asked, is there no money in it?
He said, I charge an ungodly amount of money for these. You cant buy anything like it anywhere.
Then why only 2 weeks? I'm not going to trap myself! 2 weeks, a vacation, then ill do something else entirely.
While talking his hands moved at lightning speed adding and removing different flowers.
He ended the conversation with: I have to get these finished then I have to deliver them as fast as possible as fresh as possible. I didn't sleep for days! Cant wait for it to be over!
My slacker life style allowed me to think about this strange encounter for a few days. I decided he was still doing it wrong but it looked absolutely beautiful. I'm happy he doesn't get it.
I thought Youtube was going to be sued into oblivion.
I thought Uber was going to be regulated into oblivion.
etc.
Money obviously can overcome existing laws, but if you're not prepared for those laws, you will be in for a world of hurt.
If you have any interest in doing custom B2C instead of B2B, there's Somerville Open Studios. I did that one year (2019) before we moved to Vermont just before things went to shit in 2020. I also noted that Somerville Open Container Day (aka Porchfest) would be a great time to have something going (a demo maybe?) at our house given the huge foot traffic. I think you'd get a lot more folks passing by rather than the folks already committed to visiting art and craft studios specifically.
Don't let your likely lousy space be a barrier. We had my furniture on display in our living room (aka: our furniture) and I gave people tours of our basement which had my bench, my table saw, and damn little else. People kind of dig it. Small and scrappy is kind of expected for these kind of events.
Good luck if you try to give a go at it from another angle! And if you stick with software, that's cool too.
The current meta is to license (or steal) 3D toy models and then market them relentlessly on social media. It's a marketing and social media game most of all. These shops have tens of printers set up in a room printing plates full of little toys, a web shop or social media shop to pick colors, and then they spend their days monitoring printers and packing up orders. There's not much 3D printing or design fun in the job because it's mostly a social media and logistics operation.
The card stands were a lot of fun, but most of what I print now are dog toys and gifts for my niece and nephew. It's nice to roll up to a family holiday, and have something interesting and unique you can just hand out.
You could get started doing that for just a couple hundred bucks and some desk space!
Filament printing, on the other hand, makes sense to do yourself quite often. A $200 printer will do an excellent job of most things you can throw at it, it doesn’t take up much space, is quite safe unless you’re using weird filaments, and even a kid can learn the basics in a couple days.
I would argue that they didn't. 25$ per hour for custom design work seems very low, I understand maybe trying to get a customer base but at that rate you are just going to get repeat customers who want the same low cost labor. Where 3d printing is great is if you can create truly custom things, not knick knacks that can be copied and mass produced by someone else. Selling the plastic itself is a no go, you have to go mixed materials, mixed colorways, things that take time to assemble, and then charge out the wazoo for custom work because the people that really want the custom stuff, will find a way to pay for it.
In terms of plastic, yes, it does come across as lower value, but if you can put someones logo on it you can make something unique that they love.
I had the impression that they're busy full-time but I have no idea really. They have some nice designs though.
I'm surprised they're completely focused on DnD though. Hopefully they have another business doing war hammer, etc. (although maybe everything in war hammer is copyrighted?)
Examples of what they pull when someone tries to do that:
https://www.plagiarismtoday.com/2024/01/24/printed-minis-and...
https://freelancerpress.com/arts/2025/06/04/games-workshop-i...
The "trick" was finding a weight that would work, which needed to be purchased for cheap and installed easily.
"All of this happened over text—not an organized workflow system, but good enough to handle a weekend’s worth of work, one weekend at a time. For a moment, the business worked. In reality, this was the easy part."
And
"The logo was the Boston Celtics logo. The problem? It’s not a minimal, modern logo; it’s a detailed, hand-drawn image from 1946."
have a pretty AI like cadence.
edit: No shade to OP....I'm glad it's not AI, but I'm sad my default is assuming AI now :/
Your bot detector is broken.
I saw it too and OP has likely picked up these idioms from the sheer amount of AI-assisted or generated writing out there.
- $3666 total revenue
- $3352 in expenses
- ~50 orders fulfilled
- ~3000 hours of logged print time.
This tells the whole story... these numbers are so far off from what they should be that this is not a business, but a charity cosplaying as a business. It's a pity you are going to drop this, I think if you adjust your pricing and become a bit more efficient you can easily make it work. But great you're sharing your numbers, you really just need better customers.
Rules of thumb: 10x on materials, base fee of $3 / hour of print time, $100 / hour design time if < 1000 parts, above that you can start pricing it into the job total.
> Expanding your plastic filament palette requires upfront investment
Just a guess, but the number includes buying an entire 3D printer which you don’t have to keep doing.
Still, six figure income, but what is the margin?
Looks very good though. And: very, very hard to injection mold that product (internal structure is something 3D printers excel at).