Key

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https://www.youtube.com/watch?v=p0DI9KnbOiw&t=467s⁠

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Create a disc → disc segment 2, rotation segment 36 → make editable

To top view → select inner loop → scale down XZ to 60cm

→ Drag the inner loop upward (select the middle square to control)

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Select the middle square → delete (a hole is created)

→

choose Polygon mode→ select all faces → extrude (hotkey I) → drag little bit inward

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select bottom 6 edges (select 1st edge, then Ctrl+Shift + L click 6th edge) , hold Ctrl + drag L mouse down to create 3 more extended parts

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Hotkey K L (loop cut)→ cut 2 inner loops:

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Hotkey U M (path selection) → edge mode → scale the 6 edges below to horizontal level, then move upaward

→ choose the bottom 6 edges as well, repeat the same

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Extrusion:

Go to polygon mode, select the faces wanted to extrude (help with loop selection tool (hotkey U L)

Select (top bar) → Store Selection (a triangle tag created in layer)

Type Py-Extrude Modifier plugin, hold Shift to child it under key layer

→ drag the store selection triangle in Restrict to Polygon Selection box in Modifier menu, offset 3cm, subdivision 1 or 2 (sharper with higher value)

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Add subdivison surface parent above the key layer → subdivison editor and renderer: 3

Disable subdivison surface layer whenever modify the key model

.....

Create the other side surface:

Create Py-Extrude Generator child under subdiviosn surface but parent above Disc layer (drag out Extrude modifier first)

→

Make Generator editable → delete the Front polygon selection triangle

→

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