A lighter moving bridge. A more rigid structure. The NOTUS PLUS
carbon fiber gantry brings a different approach to industrial
CNC motion—76.1 kg less moving mass and 25% lower deformation
than COMAGRAV’s standard steel gantry.
What is a carbon fiber gantry CNC router?
The gantry is the bridge that supports the spindle carriage and
Z-axis. Replacing a conventional metal bridge with a lighter
composite structure changes the mass the drives must accelerate
and stop—without treating bridge weight and rigidity as competing goals.
01 / Engineering
Four principles. One moving platform.
Explore mass, rigidity, stability and mechanical load. Each
connects the carbon fiber bridge to a practical production
consideration.
The carbon fiber bridge removes 76.1 kg from the moving
structure. At the same acceleration, a lighter bridge requires
less inertial force; the advantage is especially relevant when
a toolpath repeatedly changes direction.
Reduce the moving load before increasing drive power.
Support responsive acceleration and deceleration.
Focus the gain where the bridge repeatedly starts, stops and reverses.
02 / Rigidity
Lighter construction. A more rigid bridge.
COMAGRAV reports 25% lower deformation than its standard steel
gantry. The composite structure pairs reduced mass with rigidity
where the spindle carriage is supported.
Keep the bridge structure central to the accuracy discussion.
Connect gantry rigidity to controlled tool positioning.
Pair the structure with the right tool and workholding.
03 / Stability
Control the motion. Protect the finish.
A stable cut is the result of the complete system: bridge,
guides, spindle, tool, material and hold-down. The carbon gantry
is the structural foundation; application setup turns that
foundation into finished work.
Match tooling to the material and visible-edge requirement.
Control hold-down and chip evacuation throughout the cut.
Evaluate the finished sample, not only a feed-rate number.
04 / Mechanical load
Reduce the force behind every reversal.
Lower bridge mass reduces repeated inertial demand at the same
acceleration. That gives the motion system less mass to start
and stop over successive production cycles.
Reduce inertial demand on the bridge drive system.
Consider acceleration as well as straight-line cutting speed.
Build the production case around the actual part mix.
02 / In production
See the gantry. Watch the cut.
Start with the COMAGRAV motion sequence, then compare the platform
walkthrough with the high-speed PMMA demonstration.
The original COMAGRAV gantry sequence, followed by two views
of the machine in operation.
Platform walkthrough
NOTUS PLUS 3000 Carbon fiber gantry spotlight
See the bridge, spindle package, vacuum table and physical
scale of the industrial routing platform.
Official COMAGRAV demonstration
High-speed PMMA cutting Up to 733 mm/s
Follow the programmed cut and inspect the process. Material,
tool, geometry and hold-down determine the production feed rate.
03 / Configuration
The bridge sets the foundation.
The configuration finishes it.
Match spindle power, spindle speed, working format and material
clearance to the parts you need to produce.
13.2 kWSpindle power, up to
50,000 RPMSpindle speed, up to
2100 × 6200 mmLargest listed working format
120 mmMaterial thickness, up to
Spindle maxima represent available options, not a single universal
spindle specification. Tooling, workholding and usable clearance
are matched to the application.
Manufacturer platform specifications.
04 / The comparison
Carbon fiber and steel. Compare the moving structure.
COMAGRAV’s comparison concerns its carbon fiber gantry and
standard steel gantry—not every possible router design.
COMAGRAV gantry comparison and the resulting motion considerations
Consideration
Carbon fiber gantry
Standard steel reference
Moving mass
76.1 kg less moving mass
Reference moving structure
Gantry deformation
25% lower deformation
Reference deformation
Force at the same acceleration
Lower inertial force from lower moving mass
More force required to accelerate the heavier structure
Application setup
Matched spindle, cutter, hold-down and process
The same application variables still matter
05 / Material workflows
From gantry dynamics to finished parts.
Explore the original application photography. Choose an industry
chapter or discuss a specific material and finish with CUTWORX.
PMMA & acrylic
Visible edges, shaped profiles and display components make
cut quality part of the finished product.
Start with the bridge architecture, then connect the machine
to your material, part mix and production requirements.
What is a carbon fiber gantry on a CNC router?
The gantry is the bridge supporting the spindle carriage and
Z-axis. A carbon fiber composite bridge replaces the conventional
metal structure with a lighter, rigid assembly. COMAGRAV specifies
a 76.1 kg moving-mass reduction and 25% lower deformation for its
NOTUS PLUS carbon gantry compared with its standard steel gantry.
How does lower moving mass change production?
When the bridge accelerates or reverses, lower mass reduces the
inertial force required at the same acceleration. This matters on
toolpaths with frequent direction changes, while spindle choice,
cutting tools, workholding and material still determine the
production result.
Does 733 mm/s apply to every material?
733 mm/s is the PMMA cutting demonstration featured on this page.
Production feed rates are selected for the material, thickness,
cutter, finish requirement, workholding and part geometry.
Which spindle and machine size should I choose?
NOTUS PLUS spindle options include power up to 13.2 kW and speeds
up to 50,000 RPM. The largest listed working format is
2100 × 6200 mm. These are configuration choices, not a statement
that every spindle delivers every maximum simultaneously.
CUTWORX can help match the machine to your work.
How do I discuss an application with CUTWORX USA?
Use the configuration guidance link below. Include your materials,
maximum sheet size, material thickness, current process and
required finish so the discussion can focus on the right spindle,
tools, workholding and machine format.
Next / Your production
Build the NOTUS PLUS around your work.
Share your materials, sheet size, thickness, target finish and
current process. Define the tooling and configuration around
the work—not the other way around.
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