BasicCAD vs TinkerCAD

What BasicCAD Adds Over TinkerCAD

Change a Dimension Without Starting Over

This is the single biggest limitation of TinkerCAD: there's no parametric history. If you've built a complex model by combining and subtracting shapes, and then realize a hole needs to be 0.5 mm larger — you either manually rebuild that part of the model or start from scratch.

In BasicCAD, every operation lives in a feature tree. Click the sketch that defined the hole, change "6 mm" to "6.5 mm", and the entire model updates in a fraction of a second. Every feature downstream — fillets, shells, assembly mates — adjusts automatically. This is how professional CAD has worked for decades, and it's what makes the difference between a toy and a tool.

Precision That 3D Printing Demands

TinkerCAD's snap grid and visual placement work fine for simple objects. But the moment you need parts to fit together — a lid on a box, a bolt through a hole, a press-fit bearing seat — fractions of a millimeter matter. FDM printers add 0.1–0.3 mm per wall; if your design dimensions aren't exact, your parts won't fit.

BasicCAD's sketch solver produces exact geometry. A 3.3 mm clearance hole for an M3 bolt is exactly 3.3 mm — not "about 3 mm, snapped to the nearest grid point." When the first print doesn't fit, change the tolerance dimension by 0.1 mm and re-export. The entire model rebuilds in under a second.

STEP Export: Share Designs Professionally

TinkerCAD exports STL — a triangle mesh that's great for slicers but useless in professional CAD tools. You can't open an STL in SOLIDWORKS, Autodesk Inventor, or Fusion 360 and edit it as solid geometry.

BasicCAD exports STEP — the ISO standard for exchanging exact solid geometry. Send a BasicCAD STEP file to an engineer, a machine shop, or a manufacturer and they get real surfaces, curves, and edges — not a pile of triangles. This is the difference between a hobby output and a professional deliverable.

Still Browser-Based — Same Convenience

The reason TinkerCAD is so popular is that it runs in a browser with zero friction. BasicCAD keeps that advantage — open a tab, sign in with Google, start modeling. No download, no install, works on any device. You get professional-grade parametric CAD without giving up the convenience that made TinkerCAD appealing in the first place.

When TinkerCAD Is the Right Choice

TinkerCAD is free and has the gentlest possible learning curve. For absolute beginners, children, or simple one-off prints where precision doesn't matter, it's hard to beat. BasicCAD is $5/month — when your needs outgrow TinkerCAD's capabilities, the upgrade is immediate and painless.