C3 — CADD300_Modern

Fuller geometry, drawn in C3 — vector equilibrium, closest-packed spheres, and the Tetra720 mark

Exact-mathematics geometry — hatched gear profile, diameter callouts, and a six-hole polar array (one Cmd+Z removes the whole array)

Production drawings: dimensions with witness lines, hole callouts, hatched section views, and title blocks

Bearing & Distance annotation — click any line and it labels itself in surveyor notation: quadrant bearing in degrees-minutes-seconds plus distance, rotated to read along the line. The language of land surveyors, civil site planners, and plat drafters — and every distance field in C3 also accepts 12'6" architectural input directly

A complete parcel exhibit: four courses in metes-and-bounds notation, then one click inside with Auto Area — the boundary is detected from plain lines and the label lands at the centroid with exact area, acreage computed automatically, and perimeter. Site plans, plats, easement exhibits, deed sketches — drawn, closed, and quantified in one tool

Stationing — click an alignment and it stations itself: 0+00 through 10+00, ticks and labels riding the path around every corner. Then one more click inside for the exact area with acreage. The drawing's own caption says it: two clicks, done. Roadway exhibits, utility runs, and site boundaries in the language civil reviewers expect

Hole Table — click the part's datum corner, click Add All Circles, done: every hole tagged in shop convention (same-diameter holes share a letter) and a TAG / X / Y / Ø table measured from the datum. Machine shops, sheet-metal fabricators, and CNC programmers read this every day — the table exports straight to CSV

Line & Curve Tables — click each course and the plat annotates itself: L and C tags on the geometry, a Line Table of bearings and distances, and a Curve Table with radius, delta, arc, and chord from exact arc math. Then one click inside with Auto Area measures the whole parcel — curved boundaries and all, exactly. The subdivision-plat and roadway-exhibit standard, straight out of the Dimension menu

Weld & surface-finish symbols — not clip art, but parametric annotations built to AWS convention: pick fillet, groove, plug, spot, or seam; set the size, length-pitch, all-around, field-weld flag, and tail spec; then click the joint and the elbow. The finish mark's vee lands exactly on the surface, roughness value in place. Fabrication drawings for weldments and machined parts, annotated the way the shop floor reads them

GD&T — full ASME Y14.5 geometric tolerancing from the Dimension menu: feature control frames with all 14 characteristic symbols, Ø zones, Ⓜ/Ⓛ material modifiers, and up to three datum references; datum feature symbols that auto-advance A→B→C; and the frames know the rules — form tolerances refuse datums, as the standard requires. Around them, the mechanical staples: center marks on every hole, centerlines through the hole row, 4X/2X pattern callouts composed with their tolerances. This sheet reproduces a professional GD&T training example end to end — face, pin, and slot datums qualified in fixturing order, hole patterns positioned at MMC, profile on the outline, ordinates from the datum origin. Aerospace, automotive, medical-device, and job-shop drawings speak this language — now C3 does too

Text to Outlines — type in any font installed on your Mac, pick it, one click: the true letterforms become real vector polygons, traced analytically from the font's own bezier curves to a 0.001″ tolerance, with the holes in every O, B, and A carried as proper inner paths a cutter understands. The big Didot outline is the proof — hairline serifs and razor-thin counters, faithfully traced. Letters arrive grouped as one object, and one undo restores the editable text. Export SVG with real inch units (Cricut-proven) or DXF, and cut: laser cutters, vinyl cutters, CNC routers, plasma tables, waterjets, engravers. Sign makers and fabricators get filled letterforms; stick text remains the single-stroke engraving answer — between them, text leaves C3 ready for any machine

HVAC duct runs — click the centerline, get the double-line duct: corners become true tangent-arc elbows (dimension one and the radii measure exact — R6 inner, R18 outer on this 8″ run), size labels ride every straight section, and TEE BRANCH opens the main run into a branch with a genuinely open junction — the proof is the hatch, flowing uninterrupted from trunk to branch. Ended a run long? TRIM END takes it back in two clicks. Mechanical building services, sheet-metal shops, and anyone who's ever drawn ductwork line by line by line

The John Hardy MPC-1 preamp schematic with the color-coded Edit menu — every tool one click away

Layout / Paperspace — six viewports at different scales on a single sheet, with per-viewport layer groups

Photographs live inside drawings — schematic and product shots on one canvas, with move, resize, and crop handles

Block Attributes — 23 labeled LEDs extracted into three live documents: a schedule, a designator BOM, and a one-line parts list. The status bar tells the rest: this drawing survived a DXF round-trip

One click after importing a SparkFun RedBoard from Eagle: every component inventoried — designators, values, packages, from the ATMEGA328P down to the four status LEDs. A 24,857-primitive board file C3 had never seen, and its parts list was two clicks away. The table scrolls on canvas, exports to CSV, and the × dismisses it while you work

Multi-layer PCB on the dark canvas — 256 layers with one-click view settings

Gerber RS-274X + Excellon export — board setup, layer mapping, one-click fabrication output

A 1986 CADD/300 speaker design, reopened and re-hatched in C3 forty years later — your old drawings still work