Markforged X7

The Markforged X7 is a continuous fiber reinforcement (CFR) printer with a build volume 330 mm wide, 270 mm deep and 200 mm high. It prints a composite base filament and lays continuous fiber inside it, and its list of both is the longest reason to consider it.

On the base side the table lists Onyx, Onyx FR, Onyx ESD, Nylon, Precise PLA and Smooth TPU 95A. That last pair matters: a rigid, easy-printing plastic and a flexible one extend the machine beyond structural parts into check models and soft-contact details. On the fiber side there are Carbon Fiber, Carbon Fiber FR, Fiberglass, Aramid Fiber (Kevlar) and HSHT Fiberglass. The table does not state which fiber goes with which base, so confirm the pairing a part depends on.

Reinforced parts are built with closed cell infill and continuous fiber, layer by layer, at a Z layer resolution from 50 μm to 250 μm. Fiber is laid in the plane of each layer, so a part should be oriented with its main load running along the bed and not up through the layers. With 330 mm of width available, that usually means laying a long part flat.

The print bed is precision ground composite. The cabinet is 584 mm wide, 483 mm deep and 914 mm high and weighs 48 kg (106 lbs), which two people can position on a sturdy bench or stand. The FX20, by contrast, is listed at 530 kg (1170 lbs).

No electrical, connectivity or software rows appear in the table for this model, and neither do strength figures for reinforced parts. Material data sheets are the place to get those before a printed part replaces a machined one.