FDM vs Resin 3D Printers: Which Fits You?

Almost every consumer 3D printer is one of two kinds: a filament printer (called FDM) or a resin printer. They make different things well and ask different things of you. Choosing the right kind matters more than choosing a brand.

How FDM printers work

An FDM printer melts plastic filament and lays it down layer by layer through a heated nozzle. It is the more common type for beginners.

• Strengths: durable, functional parts; a wide range of materials; larger build sizes are common; simpler cleanup.
• Trade-offs: visible layer lines on many surfaces; fine details are harder; some materials need an enclosure and ventilation.

How resin printers work

A resin printer cures liquid resin with light, layer by layer. The result can show very fine detail, which is why resin is popular for miniatures and small detailed models.

• Strengths: very fine detail and smooth surfaces.
• Trade-offs: liquid resin must be handled with care; printed parts need washing and curing; there is a disposal step for leftover resin and cleaning liquids; parts can be more brittle for some uses.

Mess, safety and effort

With resin you should plan for gloves, eye protection, a ventilated space and a clear surface for the washing and curing steps. Resin and cleaning liquids should be disposed of according to the rules where you live, and the resin maker's safety data sheet explains how. See our 3D printer safety guide.

With FDM the main risks are hot parts and, for some materials, fumes. The setup is generally less messy.

How to decide

1. If you want strong, useful parts, larger objects or an easier start, FDM is usually the better first printer.
2. If your main goal is small, highly detailed models and you are comfortable with extra handling steps, resin may fit.
3. If you share your home with children or pets, think about where liquid resin and hot parts would be out of reach.
4. If you are not sure, start with FDM. It is the more forgiving way to learn.

Whatever you choose, continue with how to choose your first 3D printer and what it will cost to keep printing.

General information only. Follow the manual and safety data sheets for your specific printer and materials.