Panels with a purpose.
Set base length, width, wall height and tab reach. Millimetres and inches share the same underlying geometry.
Paper prototypes / Open tray No. 01
From a few numbers
to four neat corners.
A small paper tray starts as a clear flat pattern. Set the panels, inspect the tabs and see what your sheet can actually hold.
Make a tray template ↗Free · Local calculations · No account · SVG + editable setup
100 × 70 × 25 mm / nominal example
━ Cut┄ Score▰ Glue
No quiet shrinking.
Compare the full-size net with your selected paper, margins and footer. A non-fit stays a non-fit.
A file you can keep.
Export a net or fitted sheet as SVG. Save the setup and build notes for the next prototype.
Before the first fold.
BUILD NOTE 01
A dimension is a line, not a finished-fit promise ↗
Start with nominal panel geometry, then test your stock.
BUILD NOTE 02Keep sheet fit separate from screen fit ↗
A smaller on-screen drawing should not mean a smaller craft.
BUILD NOTE 03Build the four corners in a deliberate order ↗
One closed cut outline, eight score segments, four glue ears.
Nominal paper prototypes only. Material thickness, finished clearance, strength and production allowances are not modelled. Make a scrap-paper trial.