Markforged FX20
Key Specifications
physical dimensions width
physical dimensions depth
physical dimensions height
machine weight
build volume width
build volume depth
How much does the Markforged FX20 cost?
Estimated price range
Our best estimate for a metal additive manufacturing in this class — not a quote from Markforged. Configuration moves it a long way.
Overview
The Markforged FX20 is a floor-standing composite printer: it lays polymer filament by fused filament fabrication and reinforces it with continuous fiber, inside a build volume 525 mm wide, 400 mm deep and 400 mm high. It is a polymer and fiber machine: nothing on its compatible-materials list is a metal.
Size is what sets it apart in the range. The machine is 1325 mm wide, 900 mm deep and 1925 mm high and weighs 530 kg (1170 lbs). The Markforged X7 is listed at 48 kg (106 lbs), so the FX20 is roughly eleven times the mass and needs a place on the shop floor with access for a pallet truck, not a bench.
The material list is the other reason to choose it. Base filaments are Vega, ULTEM 9085 Filament, Onyx, Onyx GF, Onyx FR and Onyx ESD. Reinforcement is Continuous Carbon Fiber, Continuous Carbon Fiber FR, Continuous Carbon Fiber HT-A, Fiberglass or Aramid Fiber (Kevlar). The table does not pair fibers with base filaments, so check that the combination a part needs is supported before designing around it.
Parts are built with closed cell infill and continuous fiber reinforcement on a precision machined aluminum print bed. Z layer resolution runs from 50 μm to 250 μm. On a part that fills much of the 400 mm height the coarse end of that range keeps the build to a practical length, and the fine end is there for small features and visible faces.
The table says nothing about electrical supply, chamber or nozzle temperature, or print speed. Those are the figures to request before a site is prepared, along with the clearance needed around a cabinet 1925 mm tall.
Full Specifications
| Parameter | Value |
|---|---|
| Physical Dimensions Width | 1325 mm |
| Physical Dimensions Depth | 900 mm |
| Physical Dimensions Height | 1925 mm |
| Machine Weight | 530 kg (1170 lbs) |
| Build Volume Width | 525 mm |
| Build Volume Depth | 400 mm |
| Build Volume Height | 400 mm |
| Z Layer Resolution | 50 μm - 250 μm |
| Printing Media | Polymer Filament, Continuous Fibers |
| Internal Part Geometry | Closed Cell Infill with Continuous Fiber Reinforcement |
| Print Bed | Precision Machined Aluminum |
| Printing Process | Fused Filament Fabrication, Continuous Fiber Reinforcement |
| Compatible Materials | Vega™, ULTEM™ 9085 Filament, Onyx®, Onyx GF™, Onyx FR™, Onyx ESD™, Continuous Carbon Fiber, Continuous Carbon Fiber FR, Continuous Carbon Fiber HT-A, Fiberglass, Aramid Fiber (Kevlar®) |
Specifications sourced from markforged.com — verified 2026-10-03
Strengths & Limitations
Strengths
- Build volume of 525 mm wide, 400 mm deep and 400 mm high for large composite parts in one piece
- ULTEM 9085 Filament and Vega are on the compatible list, alongside Onyx, Onyx GF, Onyx FR and Onyx ESD
- Five reinforcement choices: Continuous Carbon Fiber, Continuous Carbon Fiber FR, Continuous Carbon Fiber HT-A, Fiberglass and Aramid Fiber (Kevlar)
- Z layer resolution from 50 μm to 250 μm, so layer height can be traded against build time
- Precision machined aluminum print bed
Limitations
- At 530 kg (1170 lbs) and 1925 mm high it needs floor space and rigging, unlike the 48 kg (106 lbs) Markforged X7
- It prints polymer and continuous fiber only; no metal appears on the compatible-materials list
- The table gives no electrical supply, temperature or speed figures, so site planning needs more data from the maker
- Depth and height are both limited to 400 mm, so only one axis reaches 525 mm
Best For
Frequently Asked Questions
01
525 mm wide, 400 mm deep and 400 mm high. The machine around it is 1325 mm wide, 900 mm deep and 1925 mm high, and it weighs 530 kg (1170 lbs).
02
No metal is on its compatible-materials list. The printing media are polymer filament and continuous fibers, and the process is fused filament fabrication with continuous fiber reinforcement. The listed materials are Vega, ULTEM 9085 Filament, Onyx, Onyx GF, Onyx FR, Onyx ESD and five continuous fibers.
03
Continuous Carbon Fiber, Continuous Carbon Fiber FR, Continuous Carbon Fiber HT-A, Fiberglass and Aramid Fiber (Kevlar). Internal part geometry is listed as closed cell infill with continuous fiber reinforcement. The table does not say which fiber can be combined with which base filament.
04
Z layer resolution is listed as 50 μm - 250 μm. Thicker layers shorten a build that uses the full 400 mm of height, and thinner layers give a finer surface on small or visible features.
05
The FX20 weighs 530 kg (1170 lbs) and stands 1925 mm high on a footprint 1325 mm wide by 900 mm deep. The Markforged X7 is listed at 48 kg (106 lbs). At that weight the FX20 is a floor-standing machine that has to be planned into a layout.
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