Features

The current release. SpryCAD is pre-1.0; this list grows with each release.

Sketching

2D profiles on planes and planar faces, solved by a numerical constraint solver.

Geometry: Line, centerline, corner and center rectangle, circle, centerpoint, 3-point and tangent arc, polygon, straight slot, spline, point. Trim, sketch fillet, offset and mirror entities, Convert Entities, construction geometry.
Relations: Inferred while drawing: coincident, horizontal, vertical, midpoint, on-entity. Explicit: parallel, perpendicular, collinear, equal, tangent, concentric, symmetric, fix.
References: Model vertices, edges, edge midpoints and hole centers, and geometry of earlier sketches. Associative: they follow the model.
Dimensions: Smart Dimension: linear, aligned, point to line, radius, diameter, angle. Driven reference dimensions. Every value accepts an expression.
Solver: Minimum-change dragging and degrees-of-freedom analysis: under defined (blue), fully defined (black), over defined (red).
Sketch tools: Sketch Axes, Change Sketch Plane, Sketch Picture (PNG, JPEG, BMP, GIF, WebP, or pasted), Spline from Table.

History-based solid modeling on an exact B-rep kernel. Every feature previews before OK.

Extrude: Boss and cut. Blind, through all, through all both, up to surface with offset, mid plane, two directions, draft.
Revolve, sweep, loft: Boss and cut. Sweep along tangent lines and arcs or a circle. Loft between profiles with start and end tangency.
Helical: A profile swept along a helix about an axis, edge or cylindrical face, with optional run-out. Exact screw surfaces.
Thread: On shafts and in holes, from the thread tables: metric coarse and fine, inch, and NPT, NPTF, Rc and G pipe threads. Blind, up to next, through all; lead-in chamfer, relief groove, fit clearance. Modeled or cosmetic.
Hole Wizard: Simple, counterbore, countersink, tapped and pipe-tapped holes from ISO and ASME tables. Editable hole profiles. Blind, through all, up to next, up to surface.
Fillet and chamfer: Rolling-ball fillets between any two faces, including curved ones, solved to 1e-8 mm. Tangent edge chains in one blend.
Shell and draft: Shell with faces removed. Draft about a neutral plane, planar and round faces.
Patterns and mirror: Linear in two directions, circular, mirror. Fillets and chamfers pattern like any other feature and are solved again where an instance differs.
Reference geometry: Planes (offset, angle, through a point, normal to a curve), axes, temporary axes and centers of round faces.
Bodies: Multi-body parts. Combine: add, subtract, common.
Appearance: Per part, feature or face. Kept in STEP export.

Design intent stored in the part.

Equations: Global variables and expressions in every field: W = 100mm, W/2 + 5mm, sin(30deg).
Units: MMGS or IPS per part. Values keep their units: 10in in a millimeter part, 1in + 2mm.
Suppression: Conditions such as Teeth < 30 suppress a feature and its dependents.
Design tables: Rows of values as named configurations, with part number, description and material per row.
Spreadsheets: Excel or LibreOffice workbooks embedded in the part. Their sheets give design tables and point tables; saving in the spreadsheet program updates the part.
Configurable parts: User-facing parameters set per component in an assembly.

Components positioned by mates and solved together.

Components: Linked to part files or embedded. Nested sub-assemblies, Form Sub-assembly, Replace Component. Fixed or floating.
Mates: Coincident, concentric, parallel, perpendicular, tangent, lock, distance and angle with limits. Gear and screw mates. Conflicts shown in red.
Motion: Drag within the mates. Motor turns a component about an axis and drives the mechanism through its mates.
Patterns: Linear and circular component patterns, Mirror Components.
Tools: Exploded views, Interference Detection, Bill of Materials at every level, Pack and Go.
Large assemblies: Opened from cached displays, built in the background. Parts found by identity, so renamed or moved files still resolve.

Parametric library parts, placed by their mate references.

Fasteners: ISO and ASME socket head, countersunk, hex head and button head screws; shoulder screws (ISO 7379, ASME B18.3); set screws (ISO 4026–4029, ASME B18.3); hex nuts; plain washers. Metric coarse, fine and inch threads.
Bearings: ISO 15 deep groove ball bearings: 60, 62, 63 and 618 series.
Insert Fastener: Fills Hole Wizard holes and their pattern instances in one step: screw length matched to the stack, nut and washers, thread matched to the tapped part. Follows the holes when parts change.
Insert Standard Part: Shoulder screws as pivots, bearings on a shaft or in a bore, set screws in tapped holes.
Library: Each dimension taken from at least two published sources. Browsable by standard and type in Tools > Libraries > Standard Parts. Editable, and exported to Excel.

Part and assembly drawings (.sdrw), associative to the model.

Views: Model, projected, section (angled, partial, own scale), detail, auxiliary, broken, broken-out section, crop. Wireframe, hidden lines visible or removed, shaded, shaded with edges.
Dimensions: Linear, diameter, radius, angle, ordinate, baseline, chamfer, arc length. Decimals, tolerances, dual units, a drafting standard per drawing.
Annotations: Notes and leaders, center marks, centerlines, bolt circles, hole callouts, hole tables, datums, feature control frames, surface finish and weld symbols, BOM tables and balloons.
Sheets: Several per drawing. Sheet formats with border, zones and a title block tied to custom properties. Layers.
Output: PDF, SVG, DXF, print.
Revisions: Every save a numbered version. Release Revision labels a drawing and its parts together.

Formed parts and their flat patterns.

Features: Base Flange, Edge Flange, Hem, cuts. Gauge tables with tooling and bend rules.
Convert to Sheet Metal: A modeled, shelled or imported STEP solid becomes a sheet metal body: bends, rips and hems recognized from its faces.
Flat pattern: Flatten and fold at any time. K-factor or DIN 6935 bend allowance.
Export: DXF or SVG with bend lines, notes and a bend table.

Measure: Distances, angles and radii, on parts and on assembly components.
Mass properties: Volume, surface area, mass, center of mass, bounding box, integrated on the exact surfaces. Material library.
Section View: Through a plane at an offset, or through a point, edge or axis. Saved by name.
Display: Shaded with edges, shaded, hidden lines visible, wireframe; perspective. Standard views, Normal To, Best View.
Save Image: PNG up to 8192 px, transparent or on white, or to the clipboard.

Native files: .sprt parts, .sasm assemblies, .sdrw drawings. SQLite databases holding every saved revision, a preview and a manifest readable without SpryCAD.
STEP AP214: Import and export of parts and assemblies. Planes, cylinders, cones, spheres and tori written as analytic surfaces; face colors kept. Surface models import as surface bodies.
STL: Binary export.
DXF, SVG, PDF: Drawings and flat patterns.
Recovery: Autosave with recovery after a crash.

SDK: .NET add-ins built against SpryCad.Sdk: features, property pages, command tabs, menus, task panes and model events. Sheet metal is one.
Management: Tools > Add-ins installs .spryaddin packages and turns add-ins on and off without a restart.