How Much Filament Does a 3D Printer Use? (Plus Tips on Saving Some)
How Much Filament Does a 3d Printer Use?
Have you ever wondered how much filament a 3D printer uses? I’ve been there, staring at my spool and thinking, “Where did it all go?”.
There are obvious nuances when it comes to 3d printing, but let’s take a look at average usage of filament in hobbyist 3d printing

The Basics of Filament Consumption
Let’s break it down. Your average 3D print uses about 15-50 grams of filament. But that’s like saying a car uses “some” fuel. It depends on what you’re printing!
- Small trinkets might use 5-10 grams
- Medium-sized objects could use 50-100 grams
- Large prints can easily eat up 200+ grams
But here’s the kicker: it’s not just about size. Your printer settings play a huge role too.
Factors Affecting Filament Usage
1. Infill Percentage
This is the “stuffing” inside your print. More infill = more filament. Simple, right?
- 10% infill: Light and quick
- 50% infill: Stronger but hungrier
- 100% infill: Solid and filament-guzzling
2. Layer Height
Thinner layers mean more detail but also more filament used. It’s a trade-off.
For someone who is just doing this as a hobby you would probably get away with 0.4mm.
3. Support Structures
These temporary scaffolds can eat up a lot of filament. Sometimes up to 40% of your total usage!
Keep an eye on your supports and don’t always go for the auto support feature. Try looking at the different supports available.
4. Shell Thickness
Thicker outer walls = more filament. But also stronger prints.
Again, weigh up what is necessary. If your prints are going to sit on display then you might get away with thinner walls.
Real-World Examples
Let’s get practical. Here are some prints I’ve done and how much filament they used:
- Smartphone stand: 15g
- Vase (20cm tall): 100g
- Full-size helmet: 500g
Want to dive deeper into 3D printing basics? Check out our beginner’s guide.
Estimating Filament Usage
Here’s a pro tip: Use your slicer software. It’ll give you a pretty accurate estimate before you print. No more guessing games!
Most slicers will tell you:
- Filament length used (in meters)
- Filament weight used (in grams)
- Estimated print time
Saving Filament (and Money!)
Want to stretch your filament further? Try these tricks:
- Hollow out models where possible
- Use lower infill percentages for non-structural parts
- Optimize support structures
- Scale down prints if full size isn’t necessary
For more speed optimization tips, check out our article on making your 3D printer faster.
FAQs
How long does a 1kg spool of filament last?
It varies wildly, but on average, you can expect 30-100 medium-sized prints from a 1kg spool.
Does PLA use more filament than ABS?
Not really. The type of filament doesn’t significantly affect usage. Your printer settings matter more.
How can I tell if I’m running out of filament mid-print?
Some printers have filament sensors. If yours doesn’t, keep an eye on your spool or use a filament scale. It is always helpful to weigh your spool prior to starting a print.
By using some simple math you can deduct the weight of the empty spool and work out the remaining filament weight.
Wrapping Up
Understanding filament usage is key to efficient 3D printing. It helps with budgeting, planning, and avoiding those frustrating moments when you run out mid-print.
Remember, practice makes perfect. The more you print, the better you’ll get at estimating and optimizing your filament use.
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Happy printing, and may your filament always be plentiful!
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