What is 3D Printing? A Complete Beginner's Guide
Understand once and for all what 3D printing is, how additive manufacturing works, and why it changed the maker world.
Real 2026 numbers: cost per gram, practical part examples, current printer prices and how much to charge per print.

Quick answer: a small PLA part (up to 50 g) costs between $1 and $3 to produce in 2026, including filament, energy and machine wear. In resin, a 30 ml miniature runs $2 to $5. Below is the full math â and at the end you can calculate the exact cost of your part.
PLA filament averages $15â25 per kilo in 2026, i.e. $0.015â0.025 per gram of material. But the real production cost â adding electricity, printer depreciation and a failure reserve â lands around $0.04 to $0.07 per gram.
Prices have dropped a lot. Typical values today:
Not sure which one to buy? Answer 3 questions in our printer recommender or see the full comparison.
FDM is cheaper per part: PLA goes a long way and there are no extra consumables. Resin costs more ($30â50 per liter, plus alcohol and FEP film), but delivers detail FDM can't match â which is why resin miniatures sell at higher margins.
The maker-market rule: total cost Ă 1.5 to 2.0 (50â100% margin). Add your modeling/finishing time and shipping. Custom or urgent parts justify higher multipliers.
Stop guessing: get the exact cost of your part with the FDM calculator or the resin calculator â and generate a PDF quote for your client.

Understand once and for all what 3D printing is, how additive manufacturing works, and why it changed the maker world.

From its creation in the 80s to today's affordable printers: understand the evolution of additive manufacturing.

Filament, resin, energy and wear: learn to calculate the true cost of each part and price without losing money.