Crate geop_lib_stdlib 

The standard parts library: fasteners and purchased components every workspace can place, as read-only files named std:… (see geop_core_program::workspace::is_shared) — std:iso4032_hex_nut.geop.

Each family is one program, generated here in Rust and never saved: its sizes are the rows of its table parameter size — M5, M3x10 — its dimensions read from that row by the formulas of its sketches (see [tables] for the data, [drawing] for sketches drawn by formulas, [steps] for how a part is built). So a program placing one picks its size like any parameter of a placed part.

Every part turns around, or runs along, the z axis, and carries named datums to mate it by: axis, and a plane through the origin for the face it sits on — seat under a screw’s head, top of a countersunk screw, base of a nut, washer, pin or standoff, side of a bearing or a gear, end of an extrusion, pulley or coupling, face of a motor, mount of a servo; a part running along z sits on a plane beside it, back of a rack, base of a rail, top of a carriage. A concentric mate on axis and a coincident one on that plane place it. The axis is a joint’s connector too: a gear or a pulley turns about it, a carriage slides along its rail’s, a servo’s horn turns about it — and a gear coupling ties two gears, or two pulleys on a belt (see [drive]).

Threads are not modelled: a screw’s shank and a nut’s bore are their nominal diameter, and StandardPart::threaded names the faces a thread goes on, for it to be recorded on them.

Where the files come from is WithStandardParts: a workspace’s own files with the standard parts beside them, which is what the editor’s workspace reads.

A part of a program of its own drawn by formulas, as the families are, is a Drawing on the outline_plane.

Structs

Drawing

A sketch drawn point by point, each point placed by two formulas — its x and y from a fixed origin — so that every point follows the parameters on its own, and solving the sketch is solving a linear system with one answer. Curves only join points; arcs take a radius.

StandardPart

A family of standard parts: the file it is placed from, and the program that builds its every size.

WithStandardParts

The program files F, with the standard parts beside them: every file named PREFIX… is a standard part’s — read-only, whatever F holds by that name — and every other is F’s.

Constants

PREFIX

What the standard parts’ file names start with.

SIZE

The name of the table parameter every family’s size is chosen by.

TEETH

The table parameter a gear’s tooth count is chosen by.

Functions

outline_plane

The plane outlines are drawn in, around the z axis: the origin’s xy plane.

part

The standard part placed from file.

parts

Every standard part, each built if it was not yet.