# Draw a honeycomb sandwich panel in Aquarell: join core walls to both skins

Language: en
Canonical: [Draw a honeycomb sandwich panel in Aquarell: join core walls to both skins](<https://allluckly.cn/en/guides/aquarell-honeycomb-sandwich-skins-core-cutaway/>)
中文：[中文 HTML](<https://allluckly.cn/guides/aquarell-honeycomb-sandwich-skins-core-cutaway/>)
English: [English HTML](<https://allluckly.cn/en/guides/aquarell-honeycomb-sandwich-skins-core-cutaway/>)
Published: 2026-11-12T00:00:00+08:00
Modified: 2026-11-12T09:43:29+08:00
Author: Bison

Use a local cutaway to check two skins, cell depth and visible openings instead of a surface honeycomb decal.

English translation of the [Chinese original](<https://allluckly.cn/guides/aquarell-honeycomb-sandwich-skins-core-cutaway/>), translated on 2026-11-12. Original publication dates, attribution, code and version notes are retained.

A tidy honeycomb pattern does not establish a sandwich panel. Make an original local cutaway in Aquarell, retaining upper/lower skins while omitting coverage at one top corner to reveal core depth. Unlike flat hexagon counting, core walls must span the core and meet both skins. Distinguish explanatory cuts from ordinary edges. Thicknesses aid reading, not engineering design, performance or manufacturing specifications.

## Block three layers before defining the cutaway

Use an approximately 1800×1400 px landscape canvas with pale-grey background and an oblique overhead panel, front edge near and right side farther. Establish two parallel thin skins with a much thicker core between, initially without hexagons. Separate lower skin, core, upper skin and cut edges; use grey-blue skins and warm yellow-brown core. Omit coverage at the upper front-right corner as an explicit explanatory cutaway. Reconnect core if floating sheets, or distinguish thin skin edges if solid timber-like. Dimensions, thickness ratios and opening area are visual choices, not material-selection data.

## Give cell openings one top-plane perspective

Arrange three clear complete illustrative openings in the exposed core top, with some clipped edge cells counted separately. Build a connected pale hexagonal network flattened with panel perspective, not mixed frontal hexagons and arbitrary circles. Neighbours share wall positions rather than duplicate full-width black borders. Clear interiors if tile-like; reduce random perspective if a photo collage. Three complete cells are a composition choice, not a product total, and half-cells at the illustration edge do not establish manufacturing damage.

## Continue cell walls downward from openings

Drop visible vertices along the common core-depth direction, using lower connections to show walls. Reveal more inner wall near and less far. Walls are neither top-surface lines nor independently leaning pieces. Establish one main cell enclosed by rim, walls and lower skin, then extend neighbours. Restore wall depth and thinness if board-game recesses; clear solid centres if hexagonal pencils. Near walls can hide parts of the floor; do not make them transparent merely to expose every bottom.

## Let the upper skin cover the core

Cover cell tops with the retained upper skin, occluding rear openings and stopping walls at its inner surface rather than through the top. Give the cut edge thin thickness and a slightly darker value distinct from ordinary outer edges. Close a background gap if roof-like; repair occlusion and layer order if cells show through the skin, without hiding the error by changing transparency. Omitted coverage is explanatory, not an actual missing product corner. Do not label adhesive thickness: drawn line width is not a bonding specification.

## Let the lower skin receive walls without flattening depth

Show parts of lower skin at cell floors and continue it from wall bases to the panel edge. Distinguish darker interior floor from lighter near thickness, not a detached tray one centimetre below the core. Repair wall contact if floating honeycomb; restore selected floors and front thin edge if an open sieve. Keep upper skin, core and lower skin thicknesses compatible around corners, without an accidental fourth layer. Omit many walls if needed, but visible walls need endpoints rather than one black mass replacing the core.

## Separate cut faces from interior shadows

Use narrow lighter warm-brown cut-wall faces and deeper shaded interiors under one upper-left light, not random value swaps per cell or uniform black rings. Group walls by orientation. Reduce glints and restore both skins if decorative mesh-like; thin walls and reduce coarse grain if brick-like. Real cores use different materials, so warm brown is illustrative, not identification as paper, metal or resin. Shadow indicates space, not load strength or bond approval; performance needs separate engineering evidence.

## Match side-cut cells to the top pattern

Trace wall positions along the front explanatory cut back to the top network instead of inventing unrelated rectangular side holes. Edge half-cells and short walls need not be completed into full hexagons. Draw the cutting line through the network on a checking layer, retaining only visible sections. Recheck wall positions/direction if a separate corrugated sheet; inspect a wrongly sloped lower skin if floors misalign. Describe clipped and complete cells separately. Three central openings do not determine every side count, and an explanatory cut line is not an instruction to cut actual material.

## Save a three-layer contact and depth check

Keep native layers and inspect an exported PNG: two skins, intervening walls, three main openings and corresponding front cut cells. Restore inner walls and thin skins if it reads as a decal rather than adding denser flat mesh. Clarify the local cutaway and its boundary if it appears accidentally delaminated. Exclude counting and hidden-grid guides. A new oblique view needs new wall occlusion and cut intersections, not a stretched layer. Success is explanatory readability, not structural performance, material safety or automatic3D generation.

## Related tutorials and sources

[Draw a miniature diorama section in Aquarell: align the scene, side layers and base](<https://allluckly.cn/en/guides/aquarell-miniature-diorama-section/>); [Draw a waffle in Aquarell: make its grid recessed rather than raised](<https://allluckly.cn/en/guides/aquarell-waffle-recessed-grid-wells/>).

Sources checked on 12 November 2026: the [official Aquarell App Store listing](<https://apps.apple.com/cn/app/id1591340577>) and [Apple Lookup](<https://itunes.apple.com/lookup?id=1591340577&country=cn>) show version 1.0.7, requiring iOS / iPadOS 15.0 or later. The drawing uses the publicly described brush, colour, layer and saving capabilities manually. Sizes, shapes and colours are practice suggestions; confirm controls against the installed version. Keep the native artwork for further editing and use PNG for previews. This batch does not claim step-by-step device testing.

Structural reference: [Hexcel’s honeycomb sandwich design guide](<https://www.hexcel.com/wp-content/uploads/2026/01/Honeycomb_Sandwich_Design_Technology.pdf>) describes facings joined through core material. This original non-engineering visualisation adopts no loads, material parameters or manufacturing requirements.