# Skadis Coffee Tamper Holder

![Preview](preview.png)

IKEA Skadis pegboard holder for a coffee tamper that ships in a tamper cup
(designed around a Normcore 58mm tamper inside its 64mm cup). The cup drops
open-end-up into the holder's pocket; the tamper rests on top of the cup
with its tamping face protected.

## Mounting (T-Clip system)

Mounts to the Skadis pegboard via the
[T-Clip system from Printables #256896](https://www.printables.com/model/256896-skadis-t-clip-system).
The slot + recess geometry is provided by
[`lib/skadis-t-clip`](../lib/skadis-t-clip/), which the holder consumes
via `use <../lib/skadis-t-clip/skadis-t-clip.scad>`. The narrow upper
section carries a single Skadis-pattern pill-shaped through-slot
surrounded by a circular recess that seats the printed clip's cap.
Print the clip separately and use it like this:

1. Hold the holder against the pegboard so the slot lines up with a
   pegboard slot.
2. Push the clip's stem through both slots (clip's long axis parallel
   to the slot, i.e. vertical).
3. Twist the clip 90 degrees — the cap is now perpendicular to the
   slot and sits flush in the recess, locking the holder in place.

The cup pocket itself is wide and prevents rotation around the single
mount point. Set `mount_count = 2` if you want a second slot 40mm above
for additional restraint.

## Print orientation

Print upright (Z up, back plate vertical, cup pocket axis vertical). The
pocket floor sits flat on the bed and all walls print as vertical
extrusions. A brim helps with the small footprint.

## Parameters

### Tamper Cup

| Parameter | Default | Description |
|-----------|---------|-------------|
| `cup_diameter` | 64 mm | Outer diameter of the tamper cup |
| `cup_pocket_depth` | 10 mm | How far the cup sits in the holder |
| `cup_tolerance` | 0.4 mm | Radial clearance around the cup, per side |
| `cup_floor` | 4 mm | Pocket floor thickness (0 = open bottom) |
| `cup_drain_diameter` | 50 mm | Drainage / pass-through hole in the floor (0 = solid) |
| `cup_front_cut_width` | 30 mm | Front-cut window so the cup is graspable (0 = closed) |

### Holder Body

| Parameter | Default | Description |
|-----------|---------|-------------|
| `pocket_wall` | 4 mm | Wall thickness around the cup pocket |
| `merge_overlap` | 3 mm | Overlap between cup pocket and back plate at the merge plane |

### Skadis Mount

| Parameter | Default | Description |
|-----------|---------|-------------|
| `mount_count` | 1 | Number of slot rows (1 = compact; 2 prevents rotation under heavy loads) |
| `mount_pitch` | 40 mm | Vertical pitch between slots (Skadis standard) |
| `back_thickness` | 5.4 mm | Back-plate thickness at the thickest part (the rim around the recess); thinnest = `back_thickness − clip_recess_depth` |
| `back_margin` | 6 mm | Margin around the slot recess on the back plate |
| `back_corner_r` | 4 mm | Outer corner radius of the back plate |

### Skadis Slot

| Parameter | Default | Description |
|-----------|---------|-------------|
| `skadis_slot_width` | 5.0 mm | Pill-slot width (Skadis nominal 5 mm) |
| `skadis_slot_height` | 15.0 mm | Pill-slot length (Skadis nominal 15 mm) |
| `clip_recess_diameter` | 22.2 mm | Cylindrical recess diameter on the front face |
| `clip_recess_depth` | 2.9 mm | Recess depth; thinnest wall at the slot = `back_thickness − clip_recess_depth` |