SolidWorks

Make an open document current again by its title, also a new one that was never saved. For after open_part / close_part on another document; list_documents gives the titles.

Grow a round boss (standoff, peg) height_mm out of ANY planar face, centred at (x, y, z) mm. The face is found as for add_hole_on_face. For a PCB standoff, add a blind hole in its top. Returns mass properties and `dimensions`.

Add a rectangular block: sketch width x height on the first plane, extrude by depth. Dimensions are in millimetres. Returns the created feature name, the addressable depth dimension ('D1@<name>'), `dimensions` (width, height, depth; for set_dimension) and the resulting mass properties.

Chamfer edges of the current part: distance_mm back along a face, at angle_deg (default 45°) to it. edges: "all" (default), "x"/"y"/"z", a face outline like "+z:outline", a feature's edges like "feature:Boss", or explicit indices like "2,5" from list_edges. Another angle than 45° needs from_face, which way the face that the distance runs along faces: "-z", angle_deg=60 makes an underside edge printable without support (round an arc the chamfer is a cone). Returns the number of edges chamfered and the mass properties.

Repeat a feature `count` times evenly around 360° about an axis. The axis is the cylindrical face nearest (center_x_mm, center_y_mm) — e.g. a centre hole drilled there. feature_name defaults to the last feature. Bolt circle: drill a centre hole + one bolt hole, then pattern the bolt hole.

Create a cone/frustum by revolving a trapezoidal profile 360°. top_diameter_mm = 0 gives a full cone. Returns mass properties (volume = π·h/3 · (rb² + rb·rt + rt²)). Use new_part first.

Cut a counterbored screw hole on the +Z face at (x_mm, y_mm). A clearance shank through the thickness plus a larger coaxial flat-bottom pocket of cbore_depth_mm from the top — so a cap-head screw or heat-set insert sits flush/recessed (common for 3D-printed parts). cbore_diameter must exceed clearance_diameter. Coordinates share add_box's system. Returns mass properties.

Create a cylinder by revolving a profile 360° about an axis. The first revolve-based primitive. Returns the resulting mass properties (volume = π · r² · h). Use new_part first.

Create a disc/puck/flange: a circle extruded along +Z, centred at (x_mm, y_mm). Flat faces are +Z/-Z, so add_hole and add_circular_pattern compose with it (round-flange bolt circles). The centre defaults to the origin; off it, its x and y are dimensions. Returns mass properties. Use new_part first.

Extrude a closed polygon into a solid: points_mm = [[x,y], ...] in mm. The polygon (first-plane coordinates, same as add_box) is auto-closed and extruded by depth_mm. Unlocks arbitrary prismatic shapes (brackets, profiles, polygons). corner_radii_mm rounds the corners with real sketch fillets: one radius for all, or one per vertex (0 = sharp); equal radii share one dimension ('radius', else 'r<i>'). rotate_deg turns the profile counterclockwise about about_mm ([x, y], the origin by default) first: draw a crank or a lug straight, then set it at its angle. draft_deg tapers the walls inwards as they rise (negative: outwards), a dimension 'draft' (a moulded boss, a printable taper). merge=False keeps the result a separate body: list_bodies, combine_bodies. Returns mass properties (volume = polygon area * depth; a right-angled corner of radius r loses r^2 (1 - pi/4), a concave one gains it).

Grow a polygon boss depth_mm out of ANY planar face: points_mm = [[x,y,z], ...] in mm. The 3D points lie on the face (found as for add_hole_on_face). For pads, ledges and mounting blocks on an existing part. corner_radii_mm rounds the corners as for add_extruded_profile. Returns mass properties.

Extrude a polygon drawn on a reference plane, such as one add_plane made at an angle. points_mm = 3D [x, y, z] points ON the plane (origin + u x_axis + v y_axis from add_plane). depth_mm along the plane's normal, or the other way with reverse=True; merged with the part. corner_radii_mm, draft_deg and merge work as for add_extruded_profile. Returns mass properties.

Extrude a stadium (rounded tab, lug or link) from point start_mm to end_mm ([x, y] mm). The half-round ends are centred on the two points themselves; width_mm is the tab's width, depth_mm the extrusion along +Z. Volume = (width * length + pi * (width/2)^2) * depth. Returns mass properties.

Extrude a smooth CLOSED spline through points: points_mm = [[x,y], ...] in mm. Like add_extruded_profile but the outline is a smooth curve through the points (free-form/organic shapes: cams, rounded outlines, aesthetic bosses), auto-closed and extruded by depth_mm. A spline's area is not analytic, so the returned volume is the measured value. Returns mass properties. Use new_part first.

Round edges of the current part with one constant radius (mm). edges: "all" (default), "x"/"y"/"z" for edges parallel to that world axis, a face outline like "+z:outline" (the outer edges of the top face, not those of holes in it), every edge of one feature like "feature:Boss" (its top and where it meets the part: a moulded look), or explicit indices like "2,5" from list_edges. radii_at_mm = [[x, y, z, r], ...] makes the radius vary: r at the edge end at each point (list_edges gives the ends), radius_mm at the other ends, straight in between; 'vertex_radii' gives each end's dimension. skip_shorter_mm leaves out edges shorter than that. tangent_propagation=True carries the round on along edges that run on smoothly from the given ones, as SolidWorks does by default: an edge ending where it runs into another tangentially, such as round a fillet, only rounds so. A refusal names the edges the radius does not fit (each tried alone, and with propagation). Returns the number of edges filleted and the mass properties.

Round a rib's top off completely: a full round fillet, as on a moulded part. The face facing `face` ("+z", ...) through the point (x, y, z) is the top; the two opposite flat side faces along it that lie closest together are the sides, so the round runs across the rib, not along it. The radius is half their distance (width_mm in the result) and follows the rib. Hand calculation: a rib w wide and L long loses L w^2 (1/2 - pi/8).

Cut a circular through-hole at (x_mm, y_mm), through the part's depth axis. The hole runs straight through the thickness (the add_box extrude direction), perpendicular to the width x height profile face. Coordinates share add_box's system (the centre of a 40x20 profile is x=20, y=10). Returns mass properties.

Drill a round hole on ANY planar face, centred at 3D point (x, y, z) mm. face is "+x"/"-x"/"+y"/"-y"/"+z"/"-z": the face facing that way through the point is drilled, so a pocket floor or a step works too. Through all, or depth_mm deep (blind: heat-set inserts, screw pilots). Returns mass properties and `dimensions` (diameter, x, y, depth).

An ISO hole from SolidWorks' Hole Wizard, sized by its standard tables. kind: 'clearance' (ISO 273), 'counterbore' (socket head cap screw), 'countersink' (socket countersunk screw) or 'tapped'; size e.g. 'M3'. Centred at (x, y, z) mm on the face through that point; through all, or depth_mm deep. fit: 'close' / 'normal' / 'loose'. For tapped holes thread='modeled' cuts a real, printable ISO thread instead of SolidWorks' cosmetic one. Returns the standard's sizes in `hole` and mass properties.

Repeat a feature `count` times, `spacing_mm` apart, along a direction. direction: "+x"/"-x"/"+y"/... feature_name: the feature to repeat (e.g. "Hole"); defaults to the most recently added feature. Returns mass properties.

Loft (blend) 2+ closed profiles on parallel planes stacked along +Z. profiles_mm: per profile a polygon [[x,y],…] (mm) in Front-plane coords, or a round section {"center_mm": [x, y], "diameter_mm": d} (thick at the knee, thin at the foot, centres free to wander). heights_mm = the +Z offset (mm) of each profile, same length, strictly increasing, starting at 0. A 2-profile loft is a ruled transition; 3+ blend smoothly. Each profile starts at its first vertex (a round one on +x): give polygons in a consistent vertex order to avoid twist. Returns mass properties. Use new_part first.

Mate a face of one component to a face of another. comp_a/comp_b are component names ('Bed' or 'Bed-1'; 'Leg-1/Thigh-1' inside a sub-assembly). face_a/face_b select a face in that component's OWN frame: by direction "+x"/"-x"/"+y"/... (optionally "+y:inner" for the cavity side of a hollow part), by its list_faces(component=...) index, "#5", or by a point on it, "@x,y,z" (a hole's wall: its centre plus the radius along x). mate_type between planar faces: "coincident", "distance" (distance_mm), "parallel", "perpendicular" or "angle" (angle_deg between the faces' normals, 0..180); "concentric" between two cylindrical faces (a pin in a hole, a hinge axis), leaving the turn about the axis free. flip takes the other solution: the mirror side of a distance, the other turning direction of an angle. A distance or angle mate returns its `dimension`: drive it with set_dimension, or step it with check_motion. An angle mate's dimension then turns the joint the whole way round, past 180 and below 0 (-30 is 30 the other way, the same turn as 330). The result is measured back after the rebuild; a mate that does not hold is removed and the components are put back.

Mirror features, or the whole body, about the 'front'/'top'/'right' plane moved offset_mm. Mirrors about z / y / x = offset_mm; plane may also name another plane in the part ('Plane1'), moved offset_mm along its normal. features: list_features names; the copies follow their seeds. Without features the body is mirrored and merged: model half of a symmetric part, mirror it about the face where the halves meet. The plane position comes back as dimension 'plane_offset'. Fails, leaving the part as it was, when a copy would land outside the part.

Make a reference plane to sketch on: an offset or a turned plane, its position a dimension. base moved offset_mm along its normal (base: front/top/right or a plane by name), or a default plane turned angle_deg about a model axis it holds, about='x'/'y'/'z' (front holds x and y, top x and z, right y and z), by the right-hand rule. For both, turn first, then offset that plane. Returns its name for plane= arguments, and origin_mm, normal, x_axis and y_axis: a point (u, v) on it is origin + u x_axis + v y_axis.

Revolve a closed profile on the Front plane about an axis in it. Without axis_mm: profile_mm = [[r, z], …] in mm, r = distance from the Y axis, z = position along it. With axis_mm = [[x1, y1], [x2, y2]]: profile_mm gives [x, y] points and the axis is the line through those two points, anywhere and at any angle (a hub turned about its own centre). Auto-closed and spun angle_deg (default 360°). Points on the axis give a solid (shafts, vases); a profile away from it gives a ring. The profile may not cross the axis. corner_radii_mm rounds corners as for add_extruded_profile (not those on the axis). Returns mass properties. Use new_part first.

Add a straight stiffening rib / gusset in a plane parallel to the Front plane. start_mm/end_mm = [x, y] ends of the rib's free edge (add_extruded_profile coordinates); the plane sits at height z_mm. The rib grows toward toward_mm (any [x, y] point on the side to fill, e.g. the inner corner of an L-bracket) until it meets the part, thickness_mm thick, centred on the plane. Returns mass properties: a triangular gusset with legs a and b adds a*b/2 * thickness.

Hollow the current part to a wall of thickness_mm, opening one face. open_face: a direction "+z"/"-z"/"+x"/... removes that planar face (open shell); "none" makes a closed hollow. Returns the resulting mass properties.

Draw a sketch of lines, arcs and splines on a plane, fully defined, to extrude or cut. plane: "front", "top", "right" or a plane by name (add_plane). Points are [u, v] in the plane's own axes, which the result gives (origin_mm + u x_axis + v y_axis): front is (x, y), top (x, -z), right (-z, y). The outline starts at start_mm; each segment runs on from where the last ended: {"line": [u, v]}; {"arc": [u, v], "through": [u, v]} (an arc through a middle point); {"arc": [u, v], "tangent": true} (an arc flowing on from the segment before); {"spline": [[u, v], ..., [u, v]]} (through the points, ending at the last). "tangent": true on a line checks that it flows on. End on start_mm to close the outline. Segments that meet smoothly get a tangent relation, the rest is dimensioned from the origin: x<i>/y<i> for the i-th point given (points_mm lists them; start_mm is 0), r<k> for the radius of segment k. Then extrude_sketch / cut_sketch the returned sketch.

Sweep a circular profile (pipe/tube/rod) along a 2D path on the Front plane. path_mm = [[x, y], …] in mm is the centreline. Interior corners are rounded with bend_radius_mm (required when the path turns; a 2-point straight path needs none); smooth=True runs a spline through the points instead, a flowing curve. diameter_mm = outer Ø; the round profile is auto-generated perpendicular to the path. Returns mass properties (pi r^2 x path_length_mm). Use new_part first.

Sweep an arbitrary closed PROFILE (cross-section) along a 2D PATH. profile_mm = [[u,v],…] in mm: the closed cross-section on the Right plane (u → world -Z, v → world +Y), centred near the origin. path_mm = [[x,y],…] in mm on the Front plane — MUST start at the origin heading +X (the profile is perpendicular to the path there). Path corners are rounded with bend_radius_mm; corner_radii_mm rounds the profile's corners as for add_extruded_profile. Volume = profile_area · path_length. For non-round extrusions along a path (rails, gaskets, trim, channels). Returns mass properties. Use new_part first.

Engrave text into ANY planar face, or emboss it with emboss=True (labels, version numbers). (x, y, z) is the text's lower-left corner on the face; the text runs along the face sketch's horizontal axis: upright along +x on the top (+z) and front (-y) faces, turned on the others (vertical on +/-x, upside down on +y), so put labels on the top or front. height_mm is the character height, depth_mm the engraving depth or embossing height. The position is two dimensions ('x', 'y'); font must be installed (default: SolidWorks' own). Returns text_area_mm2, since letters have no hand calculation.

Cut a real, printable ISO metric thread (SolidWorks' own Thread feature). size: e.g. 'M10x1.5', 'M3x0.5', 'M10x1.0' -- checked against SolidWorks' thread profiles. (x_mm, y_mm, z_mm) = centre of the circular edge where the thread starts: the end face of a rod, or the mouth of a hole (internal=True). It runs length_mm into the material, right-handed. External: the rod must have the nominal diameter (M10 -> Ø10). Internal: drill the ISO basic minor diameter first, D - 1.0825*P (M10x1.5 -> Ø8.376). Returns mass properties and the thread's size, pitch and diameters.

Report component pairs whose solids overlap, with the volume in mm^3. Touching faces do not count (a bed standing on the floor is fine); only real overlapping material does. count == 0 means the assembly is clash-free.

Step a joint through its range and check the assembly at every step. dimension_name: an angle or distance mate's dimension (add_mate returns it); values in degrees for an angle, mm for a distance, e.g. [30, 60, 90, 120, 150]. Each step gives the overlapping pairs with their volume and the distance between each pair in distances ([["Rod", "Bolt"], ...]); the summary gives clash_free and each pair's smallest distance with the value where it occurs. The dimension goes back to its value afterwards. A joint inside a sub-assembly is 'D1@Angle1@Leg-1'. Refused while a mate is broken: the parts it should hold would drift and the result mean nothing.

Check the current part for 3D printing, built along `up` ('+z', '-y', ...). Overhangs: downward faces leaning more than overhang_deg from vertical (90 = a flat ceiling) need support; the faces on the bed do not count. Gives the overhanging area per face (list_faces index) with its worst lean and centre, the bed contact area and the print height. With min_wall_mm (e.g. two nozzle widths) also the walls thinner than that, measured straight through the material from points spread over every face, with where each is thinnest. A spot right beside an edge where faces meet at a sharp angle reads as thin as the wedge of material there is: that is the edge, not a wall.

Close the current part or assembly without saving (export/save first if needed). With no current document it closes SolidWorks' active one, but only when that has no unsaved changes.

Combine solid bodies of the part into `main` (a list_bodies name). operation 'add' joins the tools to main, 'subtract' cuts them out of it, 'common' keeps only what main shares with them. tools: body names, every other body by default. Returns mass properties and the bodies left.

Compare the current part's cross-sections with a reference mesh's at the same heights. offset_mm [dx, dy, dz] moves the mesh into the part's frame. A different area means a misread feature; equal areas with different extents a shifted frame. Returns per-section pairs and the worst differences.

Pocket a planar face, leaving a rim rim_mm wide along its outline. The recessed web of an I-beam that follows a curved link, a tray, or a frame (depth_mm omitted: through all). The face is the one facing `face` ('+z', ...) through the point (x, y, z). The rim follows the outline, arcs and splines included; holes in the face stay holes. rim and depth come back as dimensions, and the pocket follows the outline when it changes. Returns mass properties.

Cut a polygonal pocket/slot from the +Z face: points_mm = [[x,y], ...] in mm. Auto-closed polygon, cut blind by depth_mm or all the way through when depth_mm is omitted. For pockets, slots, cutouts. corner_radii_mm rounds the corners and rotate_deg turns the profile about about_mm, as for add_extruded_profile (notches at +/-60 degrees around a pivot). Returns mass properties.

Cut a polygon pocket/slot on ANY planar face: points_mm = [[x,y,z], ...] in mm. The 3D points must lie on one face facing `face` ("+x"/"-x"/...), which is found through them; cut blind by depth_mm or through when omitted. For side pockets/cutouts. corner_radii_mm rounds the corners as for add_extruded_profile. Returns mass properties.

Cut a polygon sketched on a reference plane, symmetric about that plane. plane: 'front' (z = 0), 'top' (y = 0), 'right' (x = 0) or the name of another plane in the part ('Plane1'); points_mm = 3D [x, y, z] points ON that plane (e.g. x = 0 for 'right'). Cuts through all in both directions (depth_mm omitted) or depth_mm in total, centred on the plane. For shapes seen from the side: wedges, windows, symmetric recesses. corner_radii_mm rounds the corners as for add_extruded_profile. keep_inside=True cuts away everything OUTSIDE the profile (through all): extrude the front view, cut the side view with keep_inside, and the part is the 3D shape both views agree on. Returns mass properties.

Cut an existing sketch of the current part by name into the body. depth_mm deep, or through all when depth_mm is omitted, against the sketch's normal: into the part from a face. From a plane with the part in front of it (a box on the Front plane) give reverse=True. Returns mass properties.

Cut a straight slotted hole (obround) on the +Z face. Centred at (x_mm, y_mm); length_mm is centre-to-centre of the rounded ends, width_mm the slot width, angle_deg its orientation in the +Z plane (0 = +X). Cut blind by depth_mm or through when omitted. Returns mass properties.

Remove a component from the current assembly, with the mates that hold it. component: its name in list_components ("Bracket-1", or "Bracket" while there is one). Returns the mates deleted, the components left and the assembly's mass properties.

Delete an equation by the name it sets ("L_thigh", "D1@Boss") or its list_equations index. Rebuilds and returns what was deleted, failing_features and mass properties.

Delete a feature (a list_features name) with its sketch, then rebuild and remeasure. The way to undo a step. Refuses when other features are built on it and names them, and what is built on those; with_children=True deletes them all. dry_run=True only lists what would go (would_delete). Equations that named its dimensions break and come back as broken_equations; with_equations=True deletes them (global variables stay).

Delete a mate of the current assembly by name (list_components, or add_mate's 'mate'). Its components are free to move again. Returns the mates left.

Export the current part or assembly to STEP/STL/IGES/Parasolid/3MF (format from extension). Silent (no prompts). Verifies the file appears on disk and reports its size. For STL/3MF, tessellation resolution is set first: quality 'coarse'|'fine' (default 'fine' for print quality), or pass deviation_mm (+ optional angle_deg) for a reproducible custom resolution (overrides quality). Ignored for other formats. An assembly goes to STL as one file, or one file per component with per_component=True (SolidWorks names them); `files` lists what was written. STL/3MF keep the part's or assembly's own coordinates (`frame`), also per component, so a mesh measures back where the model is; slicers place it anyway.

Extrude an existing sketch of the current part by name, e.g. one a person drew. depth_mm along the sketch's normal (reverse=True: the other way), merged with the body. Or up_to='next': up to the next face of the part, ending on its shape (a post into a curved wall) and following it when it changes; or up_to='@x,y,z': up to the face through that point, also where 'next' fails (a side of the profile on a face: the refusal names a point ahead). The sketch keeps its own dimensions and relations, so the person's design stays in charge; read_sketch shows it first. Returns mass properties.