Thin walls are the silent print killer: they slice, then crumble or vanish. This checker measures the real thickness behind every face, paints a heatmap and selects every wall under your minimum, so you can fix it before wasting filament or resin.

• Measures thickness on every face with inward ray casts
• Red-to-green heatmap + automatic selection of thin areas
• Shows the thinnest wall in mm
• FDM and resin presets via your own minimum (0.8 mm, 0.5 mm…)
• Any unit setup (mm, cm, m)

Requirements: Blender 4.2 or newer, tested on 4.2 LTS and 5.1

Needs a closed mesh; apply modifiers that change the face count before painting the heatmap.