3D Layers
3D Layers

Fuse 1

This 3D printer uses the Selective Laser Sintering (SLS) 3D printing technology. The SLS 3D printing process uses a laser to precisely fuse Nylon powder layer after layer, until the part is finally done.

Fuse 1 SLS workflow

The Fuse 1 is equipped with two separate build volumes or chambers. That means that once one build is completed, users can directly launch a second build while they remove the first one.

This is a real time-saver, as post-processing steps for powder 3D prints can be quite long to carry out. Depowdering happens in the dedicated Fuse Sift, a separate “all-in-one powder recovery” machine that de-powders prints and prepares unused powder for re-use.

In terms of 3D file preparation and printer control, Formlabs offers PreForm desktop software.

Technical Specifications


Selective Laser Sintering


Build Volume (W × D × H)


16.5 x 16.5 x 30 cm
6.5 x 6.5 x 11.8 in

Layer Thickness


110 microns
0.004 in


Laser Type


Ytterbium Fiber 10W


Laser Spot Size (FWHM)


200 microns
0.0079 in

Material Refresh Rate


30% – 50%


Build Chamber


Modular, compatible with Fuse 1 and Fuse Sift