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Slot & Shaft vs Aircad

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Slot & Shaft compared with Aircad
DetailSlot & Shaft logo Slot & ShaftAircad logo Aircad
What it doesDesign DIY furniture from aluminum extrusion, resize it in 3D, and get a parts list that matches the model Precision 2D drafting and 3D modeling with multiplayer editing and AI
StageNot given Not given
FoundedNot given Not given
Based inUS US
Pricing modelFree Freemium
PricingNot given Free: $0 forever, includes 3 personal files, 3 DWG/DXF conversions monthly, 30 days version history, and 200 AI credits. Pro: $19/month or $190/year (Founder's Club pricing for new accounts until January 31, 2027; standard $29/month or $290/year), includes unlimited files, full version history, and
Key features
  • Resize designs in 3D to custom dimensions
  • Parts list generated from the same model data
  • All dimensions in metric and inches
  • Every part linked to US sellers
  • Designs checked against fit rules before listing
  • Part data sourced from manufacturer drawings
  • Designs labeled as AI draft or test-built
  • No account needed to browse and design
  • 2D drafting with familiar tools (trim, extend, fillet, offset, hatches, blocks, layers)
  • 3D solid modeling (booleans, fillets, lofts, sweeps, push/pull)
  • Real-time multiplayer editing with live cursors
  • Complete version history with change tracking and restore
  • DWG and DXF import/export with layouts, blocks, dimensions
  • AI agent that drafts, models, renders based on plain language
  • Collaborative commenting and review pinned to drawings
  • GD&T and geometric dimensioning annotations
  • Layouts with viewports, print preview, PDF export
  • JavaScript scripting API for custom commands
What makes it different
  • Parts automatically computed to fit together based on slot systems and hardware compatibility
  • Data sourced from manufacturer specifications rather than guesses
  • Cut lengths computed from design model, not estimated
  • Distinguishes between reference data and physically verified designs
  • Native browser-based CAD with no installation required, always on latest version
  • Unified 2D and 3D workspace with familiar AutoCAD commands and shortcuts
  • AI agent that understands design intent and applies changes as drafts for approval
  • Handles large models with 250,000+ entities while maintaining performance
  • Free viewers and reviewers with paid team model scaling by editors only
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check10 +8 (up) since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)014
Referring domains (Majestic)010

5 details filled in for both companies.

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