Rhino 3D Tip: Create Precise Rows and Grids with ArrayLinear

ArrayLinear is the fastest way to create precise rows — and by repeating the command orthogonally, clean grids — without overbuilding your file.

When to use it

• Fast rows of bolts, louvers, facade panels, shelves, stair treads, or perforations.
• Parametric-looking grids by arraying once for a row, grouping, then arraying the row.
• Lightweight assemblies when combined with Blocks for easy global edits.

Core workflow

• Select your source object(s). For future-proofing, consider making them a Block first (Insert > Block), then array the block instance.
• Run ArrayLinear. At the command line, set the number of items.
• Pick the first reference point (start) and the second reference point (direction and overall span). Rhino distributes the copies evenly across this vector.
• Need a precise spacing? Create a short “spacing” line or use Gumball to step an exact distance and snap the second reference point to it.

Building a grid with ArrayLinear

• Array the object in X to form a clean row.
• Group the row (Group) or keep it as a Block instance.
• Run ArrayLinear again in the Y direction using the row as the source to form a grid.
• Editing made simple: If the source was a Block, edit the Block once to update the entire grid instantly.

Precision tips

• Use Osnaps (End, Mid, Cen) and SmartTrack for reliable pick points.
• Work on a relevant CPlane: set CPlane to a face or Named CPlane to align arrays to sloped or local orientations.
• For exact control, type the item count first, then pick points from known references or typed coordinates (e.g., 0,0,0 to 1200,0,0).

Performance and organization

• Prefer Blocks over raw copies to keep file size down and enable one-click edits.
• Place arrays on dedicated layers; name layers by function (e.g., “Facade_Panels_Row01”).
• Use Purge periodically to clear unused definitions after design changes.

Quality checks

• Use Distance or Dimensions to verify spacing or overall span.
• ShowEdges and SelDup help catch accidental overlaps or near-duplicates when experimenting with spacing.
• ProjectToCPlane if you accidentally picked off-plane points and need a planar layout.

When to choose another tool

• Irregular directions: Use ArrayCrv to follow a path.
• Radial patterns: Use ArrayPolar.
• Large parametric grids: Build in Grasshopper, then bake only when settled.

Pro move

• Create a simple alias like “al” for ArrayLinear via Options > Aliases to speed repetitive placement.

Need Rhino, plugins, or expert advice? Explore licenses, upgrades, and add-ons at NOVEDGE. For complex array-driven workflows (Blocks, rendering, or Grasshopper integrations), consult NOVEDGE for tailored recommendations.