# What are the best CAD tools for engineers needing design validation?

I'm researching which CAD tools engineers actually rely on for design validation, since drafting and validating a design well enough to trust it before manufacturing are two very different capabilities. Across the CAD category, SOLIDWORKS, AutoCAD, and Onshape are the three that come up most for this specific need.

  1. SOLIDWORKS: built in simulation tools let engineers stress test parts and assemblies before anything gets manufactured, making it a common choice specifically for design validation work.
  2. AutoCAD: the long standing standard for precision 2D and 3D drafting, with a huge library of validation and checking plugins built up over decades of industrial use.
  3. Onshape: cloud native CAD with real time collaboration, which helps validation happen earlier since multiple engineers can review a design simultaneously rather than passing files back and forth.
  4. Revit: strongest for building and infrastructure design validation, where clash detection across disciplines is the main concern rather than mechanical part tolerances.
  5. Solid Edge: known for synchronous modeling that speeds up design iteration, useful when validation requires frequent geometry changes.
  6. Altium Develop: focused on electronics and PCB design validation rather than mechanical parts, worth including for engineers working across both domains.

What's the actual bottleneck for your team, is it the simulation and stress testing itself, or getting design changes validated and signed off fast enough to keep a project moving?

##### Post Metadata - Posted at: 6 days ago - Net upvotes: 1 ## Comments ### Comment 1 CAD reviews on G2 for design validation split cleanly along whether the bottleneck is simulation itself or getting a change signed off fast enough. SOLIDWORKS' built-in simulation tools stress testing parts before manufacturing, and Onshape's real-time collaboration, letting multiple engineers review a design simultaneously, are answering two different halves of the post's own question: one speeds up the actual testing, and the other speeds up the human approval loop around it. AutoCAD's decades of accumulated validation and checking plugins are a different kind of depth than either of those, breadth of tooling built up over a long history rather than a specific simulation or collaboration capability, which matters most for teams already embedded in that plugin ecosystem. Revit and Altium Develop, both being called out for domain-specific validation, clash detection across disciplines, and electronics or PCB design, respectively, are a useful reminder that design validation means something different depending on what's actually being built. Mechanical tolerances are a different problem than clash detection or trace routing. The post's own question about where the actual bottleneck sits is the right diagnostic before choosing any of these, since a team with a real simulation bottleneck needs SOLIDWORKS' stress testing depth, while a team where sign-off and approval speed is the constraint would get more value from Onshape's simultaneous review model, even if simulation power looks similar on paper. ##### Comment Metadata - Posted at: 4 days ago - Author title: Marketing ### Comment 2 <p>I’d separate geometry validation from engineering validation here. Catching clashes or bad dimensions is useful, but the bigger test is whether simulation stays tied to the latest design revision. If engineers are validating an outdated model after geometry changes, even strong analysis tools can create false confidence.</p> ##### Comment Metadata - Posted at: 6 days ago - Author title: Writer ## Related discussions - [How well does Trello scale into a larger team?](https://www.g2.com/discussions/1-how-well-does-trello-scale-into-a-larger-team) - Posted at: over 13 years ago - Comments: 6 - [Can we please add a new section](https://www.g2.com/discussions/2-can-we-please-add-a-new-section) - Posted at: over 13 years ago - Comments: 0 - [Quantifiable benefits from implementing your CRM](https://www.g2.com/discussions/quantifiable-benefits-from-implementing-your-crm) - Posted at: over 13 years ago - Comments: 4