filamentcalcs.com

Guides

Practical write-ups on filament choice, printer cost, reliability, and the other questions hobbyists actually ask. Every guide links to the calculators on this site that apply, with product links only where they are useful to the topic.

8 min read

How much does it really cost to 3D print? Full breakdown for 2026

Filament, electricity, printer wear, failures, and time. The real per-print cost, not the marketing number.

8 min read

PLA vs PETG vs ABS vs TPU: real use cases and which to pick

Plain-English comparison of the four common filaments: strength, temperature, food safety, and what each is actually good for, job by job.

9 min read

Why does my 3D print keep failing? 12 fixes ranked by frequency

The twelve most common print failures, how to spot them, and what actually fixes each one.

6 min read

How much electricity does a 3D printer actually use?

Real numbers on watts, kWh, and monthly electricity cost. Why most people massively overestimate this.

6 min read

How long does a 3D print take? Realistic times by printer class

Bambu, Prusa, Ender, Klipper-tuned. Real g/hr throughput numbers and why your slicer estimate is often wrong.

9 min read

Best 3D printer under $300 in 2026: honest buyer's guide

Bambu A1 mini vs A1 vs Ender 3 V3 KE vs Neptune 4 Plus, compared honestly: real prices, build volume, multi-color support, and which one fits how you'll actually print.

8 min read

Is multi-color 3D printing actually worth it? The real math on AMS purge waste

Bambu AMS can waste more filament on purge than the actual part weighs. When multi-color is worth it, when it isn't, and how to cut the waste.

9 min read

How to dry filament: 5 methods compared, with temperatures and times

Wet filament causes more print failures than people realize. Oven, dedicated dryer, food dehydrator, vacuum bag with desiccant, and the methods to skip. Real temps, real times, by material.

8 min read

Slicer settings that secretly waste filament (fix these first)

Most cost calculators ignore the slicer settings quietly inflating your filament use. Infill type, support style, brim, retraction, and the purge multiplier explained, with the dollar impact of each.