Hey everyone! If you’ve been dipping your toes into the 3D printing world lately, you’ve probably stumbled across two big names: resin 3D printers and filament 3D printers. And let’s be real, when I first started in this space as a 3D printing supplier, I totally mixed them up at first. I thought “3D printing is just 3D printing,” right? Spoiler alert—it’s way more different than you’d think, and picking the wrong one can leave you with a hot mess instead of that cool part you were planning. 3D Printing
I’ve helped so many customers over the last few years—from small makers to local startup teams—figure out which setup fits their needs, and today I’m breaking this down like I would over a coffee with one of them. No stuffy tech jargon that makes your eyes glaze over, just real talk about how these two machines work, what they make well, and when to reach for which.
First, let’s keep it super simple: filament printers are the ones most of us have seen (or heard of) on TikTok or in high school shops. You feed in a big spool of plastic filament—usually PLA or ABS, the basic two everyone starts with—and the machine melts that plastic, squirts it out through a tiny nozzle, and builds your part layer by layer. Super straightforward. Resin printers? They work totally different. Instead of melted plastic, they use liquid resin (light-sensitive, like the stuff in old phone screens) and a UV light to cure it layer by layer. One uses solid plastic that gets melted, the other uses liquid that gets “set” by light. That’s the core difference, but let’s dive deeper because that tiny difference leads to huge outcomes.
Let’s talk about what each is actually good for, because that’s what matters most. If you’re making something that’s tough, big, and doesn’t need crazy detail? Filament is your go-to. I had a customer last month— a local construction tool repair shop—who needed a replacement housing for a drill attachment. That part’s got to take a beating, get banged around on job sites, and be about 6 inches long. We ran it on a filament printer, used PETG (which is way more durable than PLA), and it worked perfectly. It didn’t snap when we dropped it, fit like a glove on the old drill, and didn’t cost a fortune to print. Another example: if you’re printing a bracket for a shelf, a phone case, or even a prototype for a small robot part, filament does great.
But wait—what if you need tiny, super detailed stuff? That’s where resin shines. Last week, a jewelry maker came to me because she wanted custom tiny earrings with tiny swirls and gemstone prongs. Filament would never get those little details— the nozzle is like 0.4mm thick, so if you tried to print a 1mm swirl, it’d be a blobby mess. Resin printers use a light source that cures resin to layers as thin as 0.02mm, so those tiny details pop. I’ve also helped a group of mini painting hobbyists print 28mm D&D characters—like 1 inch tall figures with tiny sword hilts and facial hair. Resin is the only way to get those crisp, delicate details without spending a ton on a super high-end filament printer. Even things like dental models, small electronic enclosures with tiny vents, or custom figurines all scream resin.
Now let’s get into the gritty, messy (literally) parts, because nobody tells you about the cleanup. Filament printers are pretty low-fuss once they’re set up. You load a spool, slice your file, hit print, and walk away. Yeah, you might have to snip a little stringing at the end, but that’s like trimming a houseplant—super quick. And the parts come out already solid, just need a little sanding if you want a smoother finish. Resin? Oh man, that’s the part that surprises people. As soon as your resin print is done, it’s still covered in sticky, uncured resin—yuck. You have to pop it off the build plate, drop it in a bath of isopropyl alcohol (that’s the rubbing alcohol stuff you have at home) to wash off all the extra resin, then cure it under a UV light for a few minutes. That’s extra steps, extra supplies to buy (alcohol, nitrile gloves so you don’t get resin on your hands—trust me, it stains), and resin is way more expensive than filament per part too. A 1kg spool of PLA runs like $20-$30, while a 1kg bottle of standard resin is around $50-$70, and you use way more resin for small detailed parts than you’d think.
Then there’s size, which is a big one for me as a supplier. If you need a big part—like a 2ft long bike rack, a large planter, or a prototype for a furniture piece—resin printers are usually tiny. Most resin printers have build plates that are like 5-8 inches squared. You can’t print something big without taping parts together, and even then, it’s a nightmare. Filament printers, on the other hand, come in all sizes—some small enough for a desk (like the Ender series, which is super popular with hobbyists) and some huge industrial ones that print parts 3ft or longer. Last year, a boat builder came to us to print custom rudder components, and that’s only possible on a big filament setup.
Durability is another huge factor. Like I said earlier, filament parts are tough—PETG is impact-resistant, PLA is good for non-heavy parts, ABS can handle higher temps (though it’s stinky when printing). Resin parts? They’re way more brittle. I’ve had a customer print a resin shelf bracket and it snapped when they put a 5lb plant on it. Resin is great for decorative or detailed parts that don’t take a lot of stress, but if your part is going to be used for heavy lifting, moving around, or exposed to heat, filament is almost always the better pick. That said, there are some engineering resins now that are stronger, but they’re way pricier than standard filament.
Let’s talk about learning curve too, because not everyone wants to be a 3D printing expert. Filament printers are way more forgiving. If you mess up a layer, you can just re-level the bed (it’s a quick 10-minute job), adjust the temperature a little, and try again. I’ve had new hobbyists set up a filament printer on a Saturday and print a small part by the evening. Resin printers? They’re trickier. You have to make sure the FEP film (the thin plastic sheet at the bottom of the resin tank) isn’t scratched, because a single scratch can ruin every print. You have to keep your resin at the right temperature, watch out for dust in the resin tank, and if you don’t wash or cure a part properly, it might be sticky or not fully hard. It’s doable, but it takes a little more patience, especially when you’re starting out.
Wait, and don’t forget about cost up front. The entry-level filament printers are super cheap—you can get a basic one for under $200, which is why they’re so popular with students and beginners. Entry-level resin printers are usually around $200-$500, so they’re a bit more of an investment. But if you go for industrial setups, filament industrial printers can be way more expensive, while some high-resin printers for detailed parts are also pricey, so it balances out depending on what you need.
I’ve got a little story that sums this up perfectly. A few months back, two customers came in on the same day: one was a kid who wanted to print a custom action figure, the other was a local maker who needed a replacement for a broken lawn mower wheel cover. The kid went with a resin printer—we printed his figure in 2 hours, and it had all the tiny details he wanted, like the sculpted muscles and the figure’s little belt. The lawn mower cover went on a filament printer, we used PETG, it printed in like 4 hours (bigger part) and it’s been outside on a lawn mower for 6 months, no issues. That’s exactly the split—small, detailed, non-stress part = resin; big, tough, functional part = filament.
Now, as your go-to 3D printing supplier, I always ask customers a few quick questions to point them in the right direction: 1) What size is your part? If it’s bigger than, say, 8 inches, filament is probably better. 2) How detailed does it need to be? If you’ve got tiny features like 1mm text or small delicate shapes, resin is the way. 3) What’s this part going to be used for? If it’s taking a beating, used outdoors, or holding weight? Filament. 4) How much time do you want to spend on cleanup and maintenance? If you don’t want to deal with alcohol baths and UV curing, filament is easier.
I get it, it’s easy to overcomplicate this. A lot of first-timers want resin because the details look insane, but then they get frustrated when their part breaks after a week, or they have to deal with sticky resin everywhere. Or someone new buys a filament printer and thinks it’s bad because the details aren’t perfect, when they should’ve gone resin. The key is matching the printer to your actual use case, not just what looks cooler.
If you’re still on the fence—maybe you’re a small business owner prototyping parts, a hobbyist looking to level up, or someone who just wants to print their own stuff—don’t stress. I’ve helped tons of people test out small setups, walk through the first print, and figure out what works for them. There’s no “best” printer, only the best printer for you.
Whether you’re just starting out or ready to upgrade your setup, I’m here to help you sort through all the options, answer your questions, and make sure you get a 3D printing setup that actually works for your projects. Don’t hesitate to reach out to chat—we can go over your needs, talk through specs, and find something that fits your budget too.
Consumer Electronics References:
- Gibson, I., Rosen, D. W., & Stucker, B. (2015). Additive Manufacturing Technologies: 3D Printing, Rapid Prototyping, and Direct Digital Manufacturing. Springer.
- Ngo, T. D., Kashani, A., Imbalzano, G., Nguyen, K. T., & Hui, D. (2018). Additive manufacturing (3D printing): A review of materials, methods, applications and challenges. Composites Part B: Engineering.
- Hopkinson, N., Dickens, P., & Hague, R. (2006). Rapid Manufacturing: An Industrial Revolution for the Digital Age. John Wiley & Sons.
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