Yukmo-sotgeul-sal

This engine recreates Yukmo-sotgeul-sal, which uses the same three-directional slats as Semo-sotgeul-sal but offsets the crossing points instead of gathering them at a single point, opening up hexagons. It is also called Eogeum-yukmo. Sotgeul means "rising," named for the way the slats overlap and rise at each crossing point, which gives the lattice its layered quality. The honeycomb hexagons the slats form are closer to a circle than a square, so — even with the same joinery — the result feels round and generous rather than taut like the triangular pattern.

How It Differs from Semo-sotgeul-sal

	Semo-sotgeul-sal	Yukmo-sotgeul-sal
Slat directions	Three directions (vertical slat plus two diagonals) meeting at one point	The same three directions, but the vertical slats are broken between crossings so hexagons open up
Cell shape	Equilateral triangle	Hexagon
Horizontal cell steps	Even numbers only	Odd numbers only
Grid math	The same equilateral triangle tessellation	The same equilateral triangle tessellation (only the omitted lines differ)

Door Tab — Main Parameters

Item	Description
Hinged · Sliding / panels	Hinged 1–2 panels, sliding 1–4, 6 or 8 panels
Frame width / height	Wall opening dimensions (width 100–10,000mm, height 400–5,000mm). The outer panel size is calculated with the frame thickness removed.
Horizontal cells	1–29, adjustable in odd steps only (default 3). This and the slat width set the hexagon size.
Pattern vertical direction	On by default. On gives pointy-top hexagons, off gives flat-top ones.
Auto-fit frame height	When checked, the frame height is adjusted so the last row meets the bottom rail exactly
Left/right stile · top/bottom rail width	Outer frame width (mm)
Slat width	Width of each slat (mm)
Use transom panel	Adds a transom panel zone at the top when checked

Specs Tab — Production Specification

Item	Description
Frame / outer / inner width and height	Automatically calculated measured dimensions
Side spacing	Spacing between the hexagons' edges
Diagonal ink lines	Reference spacing for the diagonal slats
Vertical stile groove spacing	Spacing between the grooves cut into the vertical frame members
Half-lap width / Vertical stile groove width / Horizontal stile groove width	Calculated the same way as Semo-sotgeul-sal

Member List

The same structure as Semo-sotgeul-sal — frame members → directional members (names vary with the Pattern vertical direction) → diagonal slats (two directions) → transom panel (if used) → door frame. The surface area, weight & volume table further down works the same way as Se-sal — see the Se-sal guide for details.

Finish Tab

Choosing the wood, hardware and colors per part to colour (frame, stile & rail, slat, face) works the same as Se-sal. Pick Face as the part and you can click cells in the drawing to fill just those cells (Paint face color).

Example Uses

• Traditional hanok hexagonal lattice changho
• Lattice patterns for temple halls
• Partitions for upscale Korean restaurants