Tools

Every tool in the toolbar, by tab. On a Mac, Ctrl is ⌘.

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Design

New Design — Start a new, empty design.
Open File — Open an .extrudo file from disk: the design stays linked to that file.
Save As — Save this design as an .extrudo file on disk and keep it linked to that file.
All Designs — Back to the home screen with every design in this browser.

Versions

Save Version — Keep this state of the design with a description, to come back to later.
Version History — Saved versions of this design: save one, restore one, or open one as a copy.

Files

Import .extrudo — Open an .extrudo file as a new design.
Import STEP, mesh, OpenSCAD or .f3d — Bring in a STEP file, a mesh (STL, 3MF, OBJ) or an OpenSCAD file as bodies you can cut, combine and print. An .f3d file opens as a new design.
Import Drawing — Bring an SVG or DXF drawing into the sketch as ordinary curves.
Canvas — Lay a picture on a plane as a reference to trace, and calibrate it to real scale.
Export .extrudo — Download the whole design as an .extrudo file, with its versions and attachments.
Export — STL, 3MF or STEP for printing and sharing.
Export Design as Script — Download the design as TypeScript that makes it again with the document API.
Save to Linked Folder — Keep this design as an .extrudo file in the linked folder on disk.

Parameters

Parameters — Named values and expressions that drive the model.
Customizer — The few parameters this design exposes, with sliders, and named configurations.

Extend

Plugins — Install, enable and remove plugins: custom features and commands.

Solid

Create

Create Sketch — Draw a 2D profile on a plane or a flat face.
Extrude — Pull a profile into a solid, or push and pull a flat face.
Revolve — Spin a profile around an axis.
Sweep — Move profiles along a path of sketch curves or edges, with an optional twist and end scale.
Loft — A solid through profiles on different planes, in order; a point can start or end it.
Coil — A spring: a circle, square or triangle wound along a helix, from its turns, height and pitch.

Primitives

Box — A box on a plane or a flat face, from its length, width and height.
Cylinder — A cylinder on a plane or a flat face, from its diameter and height.
Sphere — A sphere centred on a plane or a flat face.
Torus — A ring centred on a plane or a flat face, from its diameter and tube diameter.

Features

Hole — Simple, counterbored or countersunk holes, blind or through, at a click or at sketch points.
Emboss — Raise the letters of a sketch, or a whole text, off a face, or press them into it; round a cylinder or a cone they keep their width.
Rib — A thin wall from a sketch line to the body.

Pattern

Rectangular Pattern — Copies of bodies, or repeats of features, in a row or a grid.
Circular Pattern — Copies of bodies, or repeats of features, spread round an axis.
Path Pattern — Copies of bodies, or repeats of features, along sketch curves or edges.

Program

Script — Make features with TypeScript or JavaScript, using the design’s parameters.
Record Macro — Start recording: what you make from here on becomes code you can keep as a Script.
Stop Macro — Stop recording and see the code for what you made.

Component

New Component — Gather the selected bodies into a named component, to show, hide and export as one part.
Joint — Join two components where they are: a hinge, a slide or a rigid link, to pose and check.

Modify

Press Pull — Push or pull what is selected: a face moves, an edge is rounded, a sketch profile is extruded.
Fillet — Round the selected edges.
Chamfer — Bevel the selected edges.
Shell — Hollow out a body, leaving walls.
Offset Face — Move faces along their normals; the faces next to them follow. A curved wall changes its radius.
Draft — Tilt faces by a few degrees about a plane, so the part comes off the bed or out of a mould.
Thread — A real, printable screw thread on a shaft or in a hole: ISO metric or inch, with a print clearance.

Transform

Move/Copy — Move or turn bodies with the gizmo, about an axis or point to point. Copy keeps the original.
Mirror — Mirror bodies about a plane or a flat face, as copies or in place.
Combine — Join, cut or intersect a target body with tool bodies.
Split Body — Cut bodies in two along a plane or a flat face; each side becomes a body. Keep both or one.
Scale — Make bodies larger or smaller about a point, by one factor or one per axis.

Construct

Planes

Offset Plane — A plane parallel to a plane or a flat face, a distance away.
Plane at Angle — A plane turned about a line, at an angle from a reference plane.
Midplane — The plane halfway between two parallel planes or faces.
Tangent Plane — A plane touching a cylindrical, conical or spherical face.
Plane Through 3 Points — A plane through three points.
Plane Along Path — A plane square to a path at a point on it, for a sweep to draw its section on.
Angled Midplane — The plane that bisects two non-parallel planes or flat faces.

Axes

Axis Through 2 Points — A construction axis through two points, for revolves and patterns.
Axis Through Cylinder — The axis of a cylindrical, conical or toroidal face.
Axis Along Edge — An axis along a straight edge or sketch line, or through a circular edge.

Points

Point — A construction point at a vertex, a circle center, a face center or coordinates.
Point on Path — A point a fraction or a length along a path of sketch curves and edges.
Point at Intersection — The point where two edges, an edge and a plane, or three planes meet.

Inspect

Measure — Distances, angles, areas and volumes. Pick one thing, or two to measure between.
Section Analysis — Cut the view through a plane, with the cut filled in. Look inside without changing the model.

Sketch

Create

Line — Lines from point to point. Type a length, Tab to the angle.
2-Point Rectangle — From two opposite corners. Type the width, Tab to the height.
Center Diameter Circle — From the center out to the rim. Type the diameter.
3-Point Arc — Start, end, then a point it passes through.
Sketch Dimension — Lengths, radii and angles that drive the sketch.
3-Point Rectangle — One edge at any angle, then the height.
Center Rectangle — From the center out to a corner.
2-Point Circle — Across a diameter, from one side to the other.
3-Point Circle — Through three points on the rim.
Center Point Arc — The center, the start, then how far round.
Tangent Arc — Carries on smoothly from the end of a line or an arc.
Point — A sketch point, for construction and hole centers.
Inscribed Polygon — A regular polygon from its center out to a corner. Tab to the number of sides.
Circumscribed Polygon — A regular polygon sized across the flats, like a nut.
Edge Polygon — A regular polygon built on one edge.
Center to Center Slot — A slot from one arc center to the other, then the width.
Overall Slot — A slot from end to end, then the width.
Ellipse — An ellipse from its center and two axes.
Fit Point Spline — A smooth curve through the points you click. Enter to finish.
Control Point Spline — A smooth curve guided by the points you click. Enter to finish.
Conic — A conic from its two ends and the shoulder point. Rho sets how full it is.
Text — Type text on the sketch. Its letters are closed regions like any other profile.
Import Drawing — Bring an SVG or DXF drawing into the sketch as ordinary curves.
Project — Bring body edges, faces, vertices and bodies into the sketch; they follow the model.
Intersect — Bring in the curves where a face or body meets the sketch plane; they follow the model.
Mirror — Mirror curves about a line; the copies stay symmetric.
Rectangular Pattern — Copies in rows and columns. Type the counts and spacing.
Circular Pattern — Copies around a center. Type the count and the angle.

Modify

Sketch Fillet — Round the corner between two lines. Type the radius.
Trim — Cut curves back to where they cross.
Offset — Copy a chain of curves at a distance. Type the distance.
Parameters — Named values and expressions that drive the model.
Sketch Chamfer — Cut the corner between two lines. Type the distance.
Extend — Lengthen a line or an arc to the next curve.
Break — Split a curve where other curves cross it.
Move — Move curves from one point to another; constraints come along.
Copy — Copy curves from one point to another, as often as you click.
Sketch Scale — Scale curves about a point, with their dimensions.

Constraints

Coincident — Join two points, or put a point on a curve.
Collinear — Put two lines on one straight line.
Concentric — Give circles and arcs the same center.
Midpoint — Put a point at the middle of a line or an arc.
Fix/Unfix — Lock something in place, or free it again.
Parallel — Make lines parallel.
Perpendicular — Make two lines meet at a right angle.
Horizontal — Make a line horizontal, or line up two points.
Vertical — Make a line vertical, or line up two points.
Tangent — Make a curve touch another without a corner.
Smooth — Join curves with no jump in curvature (G2).
Equal — Give lines the same length, or circles the same radius.
Symmetric — Mirror two things about a line.

Export

Export Sketch — Save the sketch or its profiles as SVG or DXF, at 1 unit = 1 mm.

3D Print

Prepare

Place on Bed — Turn a flat face down onto the print bed: the body turns with it.
Measure — Distances, angles, areas and volumes. Pick one thing, or two to measure between.
Print Info — Volume, weight and filament length for PLA, PETG, ABS, TPU or your own density.
Tolerance — How much room a printed fit gets: hole presets and threads add it to their sizes.
Overhang Analysis — Shade the faces that lean out more than an angle: they need support to print.
Wall Thickness — Shade the walls thinner than a minimum: they print weak or not at all.

Output

Export — STL, 3MF or STEP for printing and sharing.