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Manufacturing · head to head

Autodesk Netfabb vs SolveSpace

Autodesk Netfabb logo

Autodesk Netfabb

Manufacturing

Additive manufacturing build preparation and simulation, now sold only bundled with Fusion

From
$4415/year
Rated
-
Full reviewWebsite
S

SolveSpace

CAD

Open source parametric CAD with a constraint solver in a few megabytes

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only SolveSpace has a free tier, so it costs nothing to try first.
  • Each has a real cost: Autodesk Netfabb netfabb Ultimate has been retired outright, with no 2026 release and no renewals, so anyone who bought Ultimate is frozen on the 2025.1 build and must accept the repackaged Netfabb instead.; SolveSpace the in-house geometry kernel fails on complex boolean operations and fillets, and the failure is sometimes silent bad geometry rather than an error message, so models must be checked before export or manufacture.
  • They diverge on capability: Autodesk Netfabb covers Mesh repair, SolveSpace covers Constraint solver.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Autodesk Netfabb and SolveSpace actually diverge.

Attributes where Autodesk Netfabb and SolveSpace differ
AttributeAutodesk NetfabbSolveSpace
Starting price$4415/yearFree
Pricing modelPer user per yearOpen source, no licence fee
Free tierNoYes
PlatformsWindows, DesktopWindows, macOS, Linux
CategoryManufacturingCAD

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Autodesk Netfabb

  • Mesh repair
  • Build orientation and nesting
  • Support generation
  • Build simulation
  • Geometry compensation
  • Lattice and shell structures
  • Machine library
  • Fusion bundle

Only in SolveSpace

  • Constraint solver
  • Solid modelling
  • Assemblies
  • Export formats
  • Cross-platform
  • Small footprint

What people use each for

The jobs each tool is most often brought in to do.

Autodesk Netfabb

  • A metal additive bureau predicting distortion on a laser powder bed build before committing twenty hours of machine timenot SolveSpace
  • An aerospace supplier applying automatic geometry compensation so printed parts land within tolerance without iterative trial buildsnot SolveSpace
  • A production department nesting hundreds of small parts into a single polymer build to raise volume utilisationnot SolveSpace
  • An engineering team that already subscribes to Fusion and wants AM preparation without adding a second vendornot SolveSpace

SolveSpace

  • Designing 3D printed parts on a machine that cannot run mainstream CADnot Autodesk Netfabb
  • Teaching constraint-based parametric modelling without buying licences for a classroomnot Autodesk Netfabb
  • Checking that a mechanical linkage moves as intended before cutting metalnot Autodesk Netfabb
  • Producing dimensionally accurate STEP or STL output from a small open source toolchainnot Autodesk Netfabb

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Autodesk Netfabb

  • Netfabb Ultimate has been retired outright, with no 2026 release and no renewals, so anyone who bought Ultimate is frozen on the 2025.1 build and must accept the repackaged Netfabb instead.
  • Autodesk has ended development of the Selective Space Structures, Optimization Utility and Lattice Topology utilities, which removes capability some customers specifically bought the product for.
  • It is now only sold bundled as Autodesk Fusion with Netfabb, so a shop that has standardised on other CAD pays for Fusion entitlements it will not use.
  • At around 4,415 US dollars per seat per year it is far above slicer-class tools, and the pricing is per named user with no floating option in the standard subscription, which hurts teams where the AM engineer role is shared.
  • Machine coverage is broad but not universal, and the newest printers from smaller manufacturers often reach their vendor own preparation software long before a Netfabb profile appears.

SolveSpace

  • The in-house geometry kernel fails on complex boolean operations and fillets, and the failure is sometimes silent bad geometry rather than an error message, so models must be checked before export or manufacture.
  • There is no proper drawing and dimensioning workflow, so manufacturing documentation has to be produced in another application.
  • Development is volunteer-led and intermittent; long gaps between releases are normal and there is no support contract available at any price.
  • Assembly-level import of external CAD is very limited, so it does not fit a supply chain that exchanges native or assembly-level models with suppliers.
  • The interface follows its own conventions rather than mainstream CAD ones, so existing SolidWorks or Fusion users spend time unlearning habits for a tool with a lower ceiling.

Pricing, plan by plan

Autodesk Netfabb

$4415/year
  • Autodesk Fusion with Netfabb$4415/year
    • Single-user subscription
    • Netfabb build preparation, formerly Premium
    • Selected functionality from the retired Ultimate edition
  • Netfabb Simulation$undefined/year
    • Metal powder bed build simulation
    • Quoted through Autodesk sales, no published price

SolveSpace

Free
  • SolveSpaceFree
    • Full application under the GPL
    • No seat limit
    • Windows, macOS and Linux builds

Which should you pick?

Choose Autodesk Netfabb if

  • You need mesh repair.
  • You work on Windows, Desktop.
  • You also want build orientation and nesting.
Autodesk Netfabb review

Choose SolveSpace if

  • You need constraint solver.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want solid modelling.
SolveSpace review

Questions people ask

Is Autodesk Netfabb or SolveSpace better?
Neither clearly leads. Autodesk Netfabb starts at $4415/year and SolveSpace at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Autodesk Netfabb or SolveSpace?
SolveSpace has a free tier; the other does not. Paid plans start at $4415/year for Autodesk Netfabb and Free for SolveSpace.
Does Autodesk Netfabb or SolveSpace run on more platforms?
Autodesk Netfabb runs on Windows, Desktop. SolveSpace runs on Windows, macOS, Linux.
Can I use SolveSpace for free?
Yes. SolveSpace has a free tier, so you can try it without paying. Autodesk Netfabb starts at $4415/year.
What is Autodesk Netfabb best used for?
Autodesk Netfabb is most often used for a metal additive bureau predicting distortion on a laser powder bed build before committing twenty hours of machine time, an aerospace supplier applying automatic geometry compensation so printed parts land within tolerance without iterative trial builds, a production department nesting hundreds of small parts into a single polymer build to raise volume utilisation, an engineering team that already subscribes to fusion and wants am preparation without adding a second vendor. Of those, a metal additive bureau predicting distortion on a laser powder bed build before committing twenty hours of machine time and an aerospace supplier applying automatic geometry compensation so printed parts land within tolerance without iterative trial builds are not what SolveSpace is typically brought in for.
What can Autodesk Netfabb do that SolveSpace cannot?
Autodesk Netfabb covers Mesh repair, Build orientation and nesting, Support generation, Build simulation. SolveSpace covers Constraint solver, Solid modelling, Assemblies, Export formats.

Answered from the vendors’ own pages

Autodesk Netfabb: Is Netfabb discontinued?

No, but Netfabb Ultimate is. There is a 2026 release of Netfabb, sold only as Autodesk Fusion with Netfabb. Ultimate licences cannot be renewed.

SolveSpace: Is it really free for commercial work?

Yes. It is released under the GPL with no licence fee and no seat limit. Support is community only.

Autodesk Netfabb: What does it cost?

The Fusion with Netfabb single-user subscription is listed at roughly 4,415 US dollars a year. Netfabb Simulation is quoted separately.

SolveSpace: Can it replace Fusion 360 or SolidWorks?

No. It handles parts and simple assemblies well. Complex geometry, drawings and supply chain interoperability are outside its range.

Autodesk Netfabb: Is there a perpetual licence?

No. Autodesk sells subscription only across its product range.

SolveSpace: What hardware does it need?

Very little. It runs on old laptops and small Linux machines where mainstream CAD will not start.

Autodesk Netfabb: Do I need Fusion to use it?

You do not have to use Fusion, but you now pay for it, because the bundle is the only way Netfabb is sold.

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