Millefoglie - Layered Paper Craft

Workflow

Load an STL file: drag it onto the viewport or use Load STL.
Set layer thickness to match your paper stock; the model re-slices as you change it.
Place alignment rods so the cut layers can be threaded onto dowels and stay registered.
Preview each layer in the 2D panel while scrubbing the layer slider.
Export SVGs for your cutter, then cut and stack the layers.

Navigation

Orbit (default) turns the camera around the model, the way a CAD viewer does. Fly gives you free first-person movement, useful for getting inside a large model. Press C to switch, or use the toolbar button.

Orbit mode

Right-drag	Orbit around the target
Left-click	Select a rod, or place one in rod mode
Middle-drag / Shift+left-drag	Pan
Wheel	Zoom toward the cursor
Double-click	Re-center the view on that point

Fly mode

Right-drag	Look around
`W` `A` `S` `D`	Move
`Space` / `Ctrl`	Move up / down
Wheel	Adjust movement speed

Standard views are on the grid button in the viewport toolbar, or number keys 1–4. F frames the whole model.

Keyboard shortcuts

Alignment rods

Click the rod button in the viewport toolbar, then click on the model to place a rod. The camera keeps its usual buttons while placement mode is active, since orbiting is right-drag either way and the left button only ever selects or places.
Select a rod to get its gizmo: drag the red and green arrows to move it in X and Y, and the blue and orange arrows to trim its top and bottom. I, J and K nudge the same axes (hold Shift to reverse).
Green rings show where the rod runs inside the model; red arcs show where it exits, and a rod should stay green over its whole length.
With Live Rod Preview on, those rings follow the cursor while you place a rod, and the layer preview shows the holes your staged rods would cut, so you can judge a position before applying it. Turn it off if you would rather keep the model solid while aiming.
Symmetry mirrors new rods across the model center on the chosen axis, and the pair stays mirrored afterwards: moving or trimming either rod moves the other to match.
Rod edits are staged. Press Apply Rod Changes to re-slice and punch the holes.

Export

All SVGs (ZIP): one SVG per layer, each laid out on its own sheet. Simple to check, but wasteful of paper.
Packed (ZIP): nests every piece from every layer onto as few sheets as possible, one SVG per sheet. Each piece is engraved with its layer number.
The download button on the Layer Preview exports just the layer you are looking at.
Cut lines are black, rod holes blue, and floating sections orange so you can spot them before cutting.