3D Shell System

SHELL Shell

{ "type": "SHELL", "id":"UUID", "ticket": 1 }||
{
  "partitionId":null,
  "groupId":0,
  "locked":1,
  "zIndex":0.223,
  "shellType":"T&B",
  "shellHeight":50,
  "pcbHeight":100,
  "strokeWidth":10,
  "path":"complex polygon",
  "attrs":{},
}|

1. type shell SHELL.
2. id primitive ID, unique within the document.
3. ticket logical clock.
4. partitionId partition ID it belongs to, null means no partition. Ignored for footprints.
5. groupId group ID: 0 no group, non-zero is the group flag, same flag means same group.
6. locked whether locked.
7. zIndex Z-axis height.
8. shellType shell type.
   • T&B top & bottom shell.
   • DRAWER drawer.
   • CLAM clamshell.
9. shellHeight shell height.
10. pcbHeight PCB height.
11. strokeWidth *line width (deprecated).
12. path see complex polygon.
13. attrs custom attributes: each 3D shell type has a set of custom shell attributes.
    • T&B
      • Thickness: shell thickness.
      • BottomHeight: bottom shell height.
      • TopInnerHeight: top shell inner wall height.
      • TopInnerThickness: top shell inner wall thickness.
    • DRAWER
      • Thickness: shell thickness.
      • Direction: drawer direction.
        • 1 positive X axis.
        • 2 negative X axis.
        • 4 positive Y axis.
        • 8 negative Y axis.

CREASE Side Reference Line (Crease)

CREASE primitives need to be used with CONNECT to associate SHELL_ENTITY and BOSS to express shell slots.

{ "type": "CREASE", "id":"UUID", "ticket": 1 }||
{
  "partitionId":null,
  "groupId":0,
  "locked":1,
  "zIndex":8.275,
  "layerId":49,
  "startX":20,
  "startY":30,
  "endX":40,
  "endY":50,
  "angle":90,
}|

1. type crease CREASE.
2. id primitive ID, unique within the document.
3. ticket logical clock.
4. partitionId partition ID it belongs to, null means no partition. Ignored for footprints.
5. groupId group ID: 0 no group, non-zero is the group flag, same flag means same group.
6. locked whether locked.
7. zIndex Z-axis height.
8. layerId layer.
9. startX start X.
10. startY start Y.
11. endX end X.
12. endY end Y.
13. angle fold angle.

SHELL_ENTITY Shell Entity Area

A SHELL_ENTITY not associated with CREASE via CONNECT performs vertical fill/cut (slotting) for the top and bottom shells.

{ "type": "SHELL_ENTITY", "id":"UUID", "ticket": 1 }||
{
  "partitionId":null,
  "groupId":0,
  "locked":1,
  "zIndex":0.15,
  "layerId":50,
  "booleanOperation":0,
  "belong":0,
  "depth":10,
  "strokeWidth":10,
  "path":"complex polygon",
}|

1. type shell entity area SHELL_ENTITY.
2. id primitive ID, unique within the document.
3. ticket logical clock.
4. partitionId partition ID it belongs to, null means no partition. Ignored for footprints.
5. groupId group ID: 0 no group, non-zero is the group flag, same flag means same group.
6. locked whether locked.
7. zIndex Z-axis height.
8. layerId layer.
9. booleanOperation boolean operation: 0 cut, 1 fill.
10. belong affiliation: 0 auto, 1 top shell, 2 bottom shell, 4 shell border, 8 boss, 16 entity. Can be combined by addition.
    • top + bottom shells: 3 = 1 + 2
    • shell border + boss: 12 = 4 + 8
    • boss + entity: 24 = 8 + 16
    • shell border + boss + entity: 28 = 4 + 8 + 16
11. depth depth.
12. strokeWidth line width.
13. path see complex polygon.

BOSS Boss

A BOSS associated with CREASE via CONNECT adds a side boss.

{ "type": "BOSS", "id":"UUID", "ticket": 1 }||
{
  "partitionId":null,
  "groupId":0,
  "locked":1,
  "zIndex":0.8976,
  "layerId":50,
  "centerX":100,
  "centerY":200,
  "specification":"M2",
  "depth":100,
  "thickness":10,
  "holeDiameter":20,
  "counterBore":[100, 20],
  "stiffener":[20, 40, 20, 10],
}|

1. type boss BOSS.
2. id primitive ID, unique within the document.
3. ticket logical clock.
4. partitionId partition ID it belongs to, null means no partition. Ignored for footprints.
5. groupId group ID: 0 no group, non-zero is the group flag, same flag means same group.
6. locked whether locked.
7. zIndex Z-axis height.
8. layerId layer.
9. centerX center X.
10. centerY center Y.
11. specification screw specification: "M2", "M3", etc., or null for custom.
12. depth boss height.
13. thickness boss wall thickness.
14. holeDiameter through-hole diameter.
15. counterBore counterbore parameters, null means no counterbore.
    • screw head height.
    • screw head diameter.
16. stiffener rib parameters, null means no rib.
    • rib top width.
    • rib bottom width.
    • rib distance from top of boss.
    • rib thickness.