Tested, printable, free — the machines' knowledge, minus the guessing.
The band that engraves without warp — the cone's unrolled math, the true diameter, the level's gravity read.
Tags 🔳Error level Q, the 4-module quiet zone, and the dark-material inversion trick.
Boxes 📦The odd-fingers rule, clearance as c/4 per boundary, and two lid styles whose play has a real source.
Hinges 🌱Fenner's analysis with the app's worked example — and the lattice that admits its estimates.
Engraving 📷Interval as DPI, four dither kernels by name, and the per-material presets — honest about being starting points.
Cutting ♻️An ID card as the ruler, the four-corner map, and the app's own honesty about photo error.
Laser 🪚The makers' own starting tables, the J/mm energy rule and its fire caution, and the never-cut list with its reasons.
Laser 📐Ten squares measure the beam's share; a printed fit gauge picks the clearance. No defaults, no guessing.
Spool care 💦The app's real presets — PLA 50°/8h to nylon's honest estimate; the one material nobody oven-dries.
3D pen 🖊️The app's lesson vocabulary, word for word — then your first piece.
More land as they're written — the bench's next: finger-joint boxes, the living hinge, the quote's layered math.