Coaster holder - parametric

A parametric coaster holder designed to store cup coasters or any circular object you want.
This object is part of a bigger project of parametric miscelaneous made with Rhino Grasshopper.
Repository: https://github.com/vicdlsns/parametricMisc
Feel free to comment or ask if needed.

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#### Parametric data:
- Inside diameter
- Material thickness
- Height
- Ellipsoidal finger hole width
- Number of finger holes

#### Included example STL and 3DM specifications
- 30mm / 3cm high
- Internal diameter 90mm/9cm
- 3mm material thickness
- 4 equally spaced finger holes, 15mm wide each

#### Print Settings
- Printer brand:
Easythreed

- Printer:
K1

- Rafts:
Not necessary
- Supports:
Not necessary
- Resolution:
0,2

- Infill:
20%

- Filament brand:
generic

- Filament material:
pla or abs