Assembly tab: components, mates, exploded view and BOM

What it is

An assembly (.kcasm) combines parts (.kcpart), STEPs and sub-assemblies. An assembly opens straight on this tab.

Groups and buttons

• Components: New assembly · Insert Component · Mate · Component pattern · Replace component.
• Explode: Exploded View · View in VR/AR · Film / animation.
• Check: Interference Detection · 部材表 / BOM.

Step by step

1. New assembly, then Insert Component (part, assembly or STEP).
2. Mate: select two faces/edges/holes and choose the type (coincident, parallel, perpendicular, concentric, distance, angle, limit).
3. Component pattern repeats a component (linear, circular or following a part pattern).
4. Exploded View: click the parts, choose direction and distance and Add step — or Make the steps automatically. Play (assembly instruction) animates the steps.
5. 部材表 / BOM: parts list (flat or indented) with quantities and mass.

Tips

• The exploded view is display only: mates and 部材表 do not change. It is saved in the file and shows in the assembly drawing.
• Big assembly: View → Large assembly mode (Auto above 1,500 parts) keeps rotation smooth.
• A click picks the top component; Alt+click goes one level down.

Common mistakes

• Mate refused: it conflicts with another one. Delete or edit the old mate in the tree.
• No explode/assembly option in the film: create an exploded view first.