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Manufacturing · head to head

Markforged Eiger vs SolveSpace

Markforged Eiger logo

Markforged Eiger

Manufacturing

Free cloud print preparation for Markforged printers, because the money is in the hardware

From
Free
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

  • Each has a real cost: Markforged Eiger eiger only drives Markforged printers, so the free software is a lock-in mechanism; the moment you want a different machine none of your prepared parts or fibre routing transfers.; 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: Markforged Eiger covers Continuous fibre routing, SolveSpace covers Constraint solver.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Markforged Eiger and SolveSpace actually diverge.

Attributes where Markforged Eiger and SolveSpace differ
AttributeMarkforged EigerSolveSpace
Pricing modelquoteOpen source, no licence fee
PlatformsWeb, Windows, macOS, CloudWindows, macOS, Linux
CategoryManufacturingCAD

Identical on both: starting price (Free), free tier (Yes), 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 Markforged Eiger

  • Continuous fibre routing
  • Cloud slicing
  • Fleet management
  • Part library
  • Material tracking
  • Simulation add-on
  • Eiger Offline
  • Access control

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.

Markforged Eiger

  • A tooling department printing carbon fibre reinforced jigs and fixtures strong enough to replace machined aluminiumnot SolveSpace
  • A defence contractor needing air-gapped print preparation because part geometry cannot leave the site, which requires Eiger Offlinenot SolveSpace
  • A manufacturing engineering group running several Markforged machines across sites from one queue and part librarynot SolveSpace
  • A maintenance team producing reinforced replacement brackets on demand rather than holding sparesnot SolveSpace

SolveSpace

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

Where each one falls short

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

Markforged Eiger

  • Eiger only drives Markforged printers, so the free software is a lock-in mechanism; the moment you want a different machine none of your prepared parts or fibre routing transfers.
  • The standard product is cloud only, meaning part geometry is uploaded to a vendor service, which is unacceptable for many defence and aerospace sites and forces them onto the paid Eiger Offline subscription per machine.
  • Eiger Offline pricing is not published and is charged per machine, so a shop with several printers pays repeatedly for software the cloud users receive free.
  • Slicing control is deliberately simplified compared with open slicers, and experienced operators regularly find they cannot reach a parameter they want without contacting support.
  • Markforged has been through financial pressure and consolidation in the additive sector, and because the software is inseparable from the hardware, a change of ownership or product line pruning would strand the fleet rather than just the tool.

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

Markforged Eiger

Free
  • Eiger Basic$undefined/year
    • Included at no additional charge with every Markforged printer
    • No per-user or per-printer software fee
    • Cloud print preparation and fleet management
  • Eiger Offline$undefined/year
    • Air-gapped installation for secure and classified environments
    • Sold per machine on subscription
    • Quarterly feature and material updates

SolveSpace

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

Which should you pick?

Choose Markforged Eiger if

  • You need continuous fibre routing.
  • You want to start without paying.
  • You work on Web, Windows, macOS, Cloud.
  • You also want cloud slicing.
Markforged Eiger 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 Markforged Eiger or SolveSpace better?
Neither clearly leads. Markforged Eiger starts at Free and SolveSpace at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Markforged Eiger or SolveSpace?
Markforged Eiger starts at Free and SolveSpace at Free.
Does Markforged Eiger or SolveSpace run on more platforms?
Markforged Eiger runs on Web, Windows, macOS, Cloud. SolveSpace runs on Windows, macOS, Linux.
Can I use Markforged Eiger for free?
Both have a free tier, so you can try either at no cost before committing.
What is Markforged Eiger best used for?
Markforged Eiger is most often used for a tooling department printing carbon fibre reinforced jigs and fixtures strong enough to replace machined aluminium, a defence contractor needing air-gapped print preparation because part geometry cannot leave the site, which requires eiger offline, a manufacturing engineering group running several markforged machines across sites from one queue and part library, a maintenance team producing reinforced replacement brackets on demand rather than holding spares. Of those, a tooling department printing carbon fibre reinforced jigs and fixtures strong enough to replace machined aluminium and a defence contractor needing air-gapped print preparation because part geometry cannot leave the site, which requires eiger offline are not what SolveSpace is typically brought in for.
What can Markforged Eiger do that SolveSpace cannot?
Markforged Eiger covers Continuous fibre routing, Cloud slicing, Fleet management, Part library. SolveSpace covers Constraint solver, Solid modelling, Assemblies, Export formats.

Answered from the vendors’ own pages

Markforged Eiger: How much does Eiger cost?

Nothing, if you own a Markforged printer. It is included with every machine with no per-user or per-printer software fee. Eiger Offline is a separate paid per-machine subscription.

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.

Markforged Eiger: Can I use Eiger with a non-Markforged printer?

No. It only prepares and drives Markforged machines.

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.

Markforged Eiger: Is my part geometry uploaded to the cloud?

Yes, in the standard product. Sites that cannot allow that need Eiger Offline.

SolveSpace: What hardware does it need?

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

Markforged Eiger: Where is the actual cost then?

In the printers and the proprietary filament and continuous fibre spools, which are the recurring spend.

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