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stl/
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SCAD = wargame_box.scad
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PARTS = box lid insert
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STLS = $(addprefix stl/,$(addsuffix .stl,$(PARTS)))
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all: $(STLS)
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stl/%.stl: $(SCAD)
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@mkdir -p stl
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openscad -o $@ -D 'part="$*"' $(SCAD)
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docs/assembly.png: $(SCAD)
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@mkdir -p docs
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openscad -o $@ --render --imgsize=900,800 \
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--camera=110,75,60,60,0,30,700 $(SCAD)
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clean:
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rm -rf stl
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.PHONY: all clean
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# Wargame Accessory Box & Dice Tray
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A parametric OpenSCAD box for carrying tabletop wargaming accessories.
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Three printable parts:
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| Part | Purpose |
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|----------|--------------------------------------------------------------------|
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| `box` | Open tray. With the insert removed it doubles as a dice tray. |
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| `lid` | Fully detachable friction-fit lid (no hinge to get in the way). |
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| `insert` | Removable compartment tray for tokens, measuring tapes, etc. |
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## Quick start
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Open `wargame_box.scad` in OpenSCAD and set the three `total_*` values to
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the free space in your backpack — they are **outer** dimensions and
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`total_z` already includes the closed lid, so the printed result fits the
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measured space exactly.
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Pick what to render with the `part` variable (or the customizer):
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`assembly` (exploded preview), `box`, `lid`, `insert`, `print`.
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Or export everything from the command line:
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```sh
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make # exports stl/box.stl, stl/lid.stl, stl/insert.stl
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```
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## Configuring the insert layout
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Compartments are defined by the `layout` list, one entry per row
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(front to back):
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```
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layout = [
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[1.0, [1, 1, 1, 1]], // front row: 4 equal token bins
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[1.0, [2, 1, 1]], // middle row: 1 double-width + 2 small
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[0.8, [1]] // back row: full-width slot (tapes etc.)
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];
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```
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* The first number is the **row depth weight**.
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* The list is the **column width weights** within that row.
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Weights are relative, so the layout always fills the insert exactly no
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matter what box size you choose. A row weight of `2` is twice as deep as
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a row of weight `1`; a column weight of `2` is twice as wide as `1`.
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To print a second insert variant (e.g. for a different game system), just
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change `layout`, re-export, and swap inserts as needed. Two half-height
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stacked inserts are possible too: set `insert_h_override` to about half
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of the automatic height and print two with different layouts.
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## How the parts work together
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* The **lid** is a flat plate with a lip that plugs into the box opening.
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`lid_clearance` (default 0.2 mm per side) controls the friction fit —
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print a test fit and adjust for your printer/material. Shallow thumb
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grooves on the box's front and back walls let you pry the lid off; they
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do **not** pierce the wall, so the dice tray stays fully closed.
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* The **insert** sits below the lid's lip, so the lip also keeps loose
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tokens from jumping compartments in the bag. Finger notches on its
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short walls let you lift it straight out; then the empty box is your
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dice tray. `tray_chamfer` puts a 45° bevel around the floor edges so
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dice don't lodge in the corners.
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## Printing notes
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* No supports needed for any part. Print all parts flat side down
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(the lid prints plate-down, lip up).
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* PLA or PETG, 2–3 perimeters, ~10 % infill (the parts are mostly walls).
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* If the lid is too tight/loose, tune `lid_clearance` in steps of 0.05 mm.
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Same for the insert with `insert_clearance` (looser is fine there —
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it just needs to drop in and lift out easily).
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* A piece of felt glued into the box floor makes dice rolling quieter;
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if you plan this, add the felt thickness to nothing — the inner depth
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is generous — but you may want `tray_chamfer = 0` for a flat floor.
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Binary file not shown.
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After Width: | Height: | Size: 34 KiB |
@@ -0,0 +1,276 @@
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// ============================================================
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// Wargame Accessory Box & Dice Tray
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// ------------------------------------------------------------
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// Three printable parts:
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// * box - open tray, doubles as a dice tray
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// * lid - fully detachable friction-fit lid
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// * insert - removable compartment tray (configurable layout)
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//
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// Set `part` below (or via customizer / -D on the CLI) to
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// choose what to render. "assembly" shows an exploded preview,
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// "print" lays all parts flat for a quick look at a full set.
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// ============================================================
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/* [What to render] */
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part = "assembly"; // [assembly, box, lid, insert, print]
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/* [Outer dimensions (must fit the backpack)] */
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// Total outer width (X), including walls
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total_x = 220;
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// Total outer depth (Y), including walls
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total_y = 150;
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// Total outer height (Z), INCLUDING the closed lid
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total_z = 80;
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/* [Shell] */
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// Box / lid wall thickness
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wall = 2.4;
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// Box floor thickness
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floor_t = 2.4;
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// Outer corner radius (0 = sharp corners)
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corner_r = 6;
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/* [Dice tray] */
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// 45-degree chamfer along the inner floor edges so dice
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// don't get stuck in the corners (0 = off)
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tray_chamfer = 6;
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/* [Lid] */
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// Thickness of the flat lid plate
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lid_top = 2.4;
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// Height of the lip that plugs into the box opening
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lip_h = 10;
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// Lip wall thickness
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lip_t = 2.0;
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// Gap per side between lip and box wall.
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// Tune for your printer: smaller = tighter friction fit.
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lid_clearance = 0.20;
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// Thumb groove on the box's outer walls to pry the lid off
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// (does NOT pierce the wall, dice tray stays closed)
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thumb_grooves = true;
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/* [Insert] */
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// Gap per side between insert and box wall
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insert_clearance = 0.40;
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// Insert outer wall thickness
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insert_wall = 1.6;
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// Wall thickness between compartments
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divider_t = 1.2;
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// Insert floor thickness
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insert_floor = 1.6;
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// Insert height; 0 = automatic (fills the box up to the lid lip)
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insert_h_override = 0;
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// Finger notches on the insert's short walls for lifting it out
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finger_notches = true;
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// Finger notch diameter
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notch_d = 22;
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/* [Hidden] */
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// ------------------------------------------------------------
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// Compartment layout
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// ------------------------------------------------------------
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// One entry per row (front to back). Each entry is
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// [row_depth_weight, [column_width_weights]]
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// Weights are relative, so the layout always fills the insert
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// exactly no matter what the box dimensions are.
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//
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// Default: a wide slot for measuring tapes across the back,
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// and two rows of token compartments in front.
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layout = [
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[1.0, [1, 1, 1, 1]], // front row: 4 small token bins
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[1.0, [2, 1, 1]], // middle row: 1 medium + 2 small
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[0.8, [1]] // back row: full-width slot (tapes etc.)
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];
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$fn = $preview ? 32 : 64;
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// ------------------------------------------------------------
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// Derived dimensions
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// ------------------------------------------------------------
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box_h = total_z - lid_top; // box body height
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inner_x = total_x - 2 * wall; // cavity size
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inner_y = total_y - 2 * wall;
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inner_h = box_h - floor_t; // cavity depth
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inner_r = max(corner_r - wall, 0.1); // cavity corner radius
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ins_x = inner_x - 2 * insert_clearance; // insert outer size
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ins_y = inner_y - 2 * insert_clearance;
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ins_h = insert_h_override > 0
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? insert_h_override
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: inner_h - lip_h - 0.6; // leave room for the lid lip
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lip_x = inner_x - 2 * lid_clearance; // lid lip outer size
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lip_y = inner_y - 2 * lid_clearance;
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// ------------------------------------------------------------
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// Helpers
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// ------------------------------------------------------------
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function sum(v, i = 0) = i >= len(v) ? 0 : v[i] + sum(v, i + 1);
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// sum of the first n elements
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function psum(v, n) = n <= 0 ? 0 : v[n - 1] + psum(v, n - 1);
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function row_weights() = [for (r = layout) r[0]];
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// rounded-corner rectangle, centered at origin corner (0,0)
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module rrect(x, y, r) {
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if (r > 0)
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translate([r, r])
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offset(r) square([x - 2 * r, y - 2 * r]);
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else
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square([x, y]);
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}
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module rbox(x, y, z, r) {
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linear_extrude(z) rrect(x, y, r);
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}
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// ------------------------------------------------------------
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// Box (dice tray)
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// ------------------------------------------------------------
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module box() {
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// thumb grooves are shallow vertical scoops on the outer
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// front/back wall, so the dice tray wall stays closed
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groove_depth = min(1.4, wall - 0.8);
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difference() {
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union() {
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difference() {
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rbox(total_x, total_y, box_h, corner_r);
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translate([wall, wall, floor_t])
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rbox(inner_x, inner_y, inner_h + 1, inner_r);
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}
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if (tray_chamfer > 0) tray_chamfers();
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}
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if (thumb_grooves)
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for (m = [0, 1])
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translate([total_x / 2,
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m == 0 ? -(14 - groove_depth)
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: total_y + (14 - groove_depth),
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box_h - 16])
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cylinder(h = 20, d = 28, $fn = 48);
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}
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}
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module tray_chamfers() {
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c = min(tray_chamfer, inner_h - 1);
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// triangular prisms against each inner wall
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module prism(length)
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rotate([90, 0, 90])
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linear_extrude(length)
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polygon([[0, 0], [c, 0], [0, c]]);
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intersection() {
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translate([wall, wall, floor_t])
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rbox(inner_x, inner_y, inner_h, inner_r);
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translate([wall, wall, floor_t]) {
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// along y = 0 wall
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prism(inner_x);
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// along y = inner_y wall
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translate([inner_x, inner_y, 0]) rotate([0, 0, 180]) prism(inner_x);
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// along x = 0 wall
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translate([0, inner_y, 0]) rotate([0, 0, -90]) prism(inner_y);
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// along x = inner_x wall
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translate([inner_x, 0, 0]) rotate([0, 0, 90]) prism(inner_y);
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}
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}
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}
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// ------------------------------------------------------------
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// Lid
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// ------------------------------------------------------------
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module lid() {
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taper = 1.2; // 45-degree lead-in at the lip's top edge
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difference() {
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union() {
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// flat plate, same footprint as the box
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rbox(total_x, total_y, lid_top, corner_r);
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// friction-fit lip; starts at z = 0 so it overlaps
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// the plate and unions into a single manifold solid
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translate([wall + lid_clearance, wall + lid_clearance, 0]) {
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rbox(lip_x, lip_y, lid_top + lip_h - taper, inner_r);
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// tapered tip enters the box first -> easy closing
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translate([lip_x / 2, lip_y / 2, lid_top + lip_h - taper])
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linear_extrude(taper,
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scale = [(lip_x - 2 * taper) / lip_x,
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(lip_y - 2 * taper) / lip_y])
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translate([-lip_x / 2, -lip_y / 2])
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rrect(lip_x, lip_y, inner_r);
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}
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}
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// hollow the lip above the plate
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translate([wall + lid_clearance + lip_t,
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wall + lid_clearance + lip_t, lid_top])
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rbox(lip_x - 2 * lip_t, lip_y - 2 * lip_t,
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lip_h + 1, max(inner_r - lip_t, 0.1));
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||||||
|
}
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||||||
|
}
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||||||
|
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||||||
|
// ------------------------------------------------------------
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// Insert
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||||||
|
// ------------------------------------------------------------
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||||||
|
module insert() {
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||||||
|
iw_x = ins_x - 2 * insert_wall; // usable interior
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||||||
|
iw_y = ins_y - 2 * insert_wall;
|
||||||
|
n_rows = len(layout);
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rw = row_weights();
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||||||
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avail_y = iw_y - (n_rows - 1) * divider_t;
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||||||
|
|
||||||
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difference() {
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rbox(ins_x, ins_y, ins_h, inner_r);
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||||||
|
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||||||
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// compartment cavities
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||||||
|
for (ri = [0 : n_rows - 1]) {
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||||||
|
row_y0 = insert_wall
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||||||
|
+ avail_y * psum(rw, ri) / sum(rw)
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||||||
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+ ri * divider_t;
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||||||
|
row_dy = avail_y * rw[ri] / sum(rw);
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||||||
|
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||||||
|
cols = layout[ri][1];
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||||||
|
n_cols = len(cols);
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||||||
|
avail_x = iw_x - (n_cols - 1) * divider_t;
|
||||||
|
|
||||||
|
for (ci = [0 : n_cols - 1]) {
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||||||
|
col_x0 = insert_wall
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||||||
|
+ avail_x * psum(cols, ci) / sum(cols)
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||||||
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+ ci * divider_t;
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||||||
|
col_dx = avail_x * cols[ci] / sum(cols);
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||||||
|
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||||||
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translate([col_x0, row_y0, insert_floor])
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||||||
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cube([col_dx, row_dy, ins_h]);
|
||||||
|
}
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||||||
|
}
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||||||
|
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||||||
|
// finger notches on the short (left/right) walls
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||||||
|
if (finger_notches)
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|
for (x = [0, ins_x])
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||||||
|
translate([x, ins_y / 2, ins_h])
|
||||||
|
rotate([0, 90, 0])
|
||||||
|
cylinder(h = 2 * (insert_wall + 6),
|
||||||
|
d = notch_d, center = true, $fn = 48);
|
||||||
|
}
|
||||||
|
}
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||||||
|
|
||||||
|
// ------------------------------------------------------------
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||||||
|
// Output
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||||||
|
// ------------------------------------------------------------
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||||||
|
module assembly() {
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||||||
|
color("SteelBlue") box();
|
||||||
|
color("Orange")
|
||||||
|
translate([wall + insert_clearance,
|
||||||
|
wall + insert_clearance, floor_t])
|
||||||
|
insert();
|
||||||
|
// lid floats above, flipped into closed orientation
|
||||||
|
color("LightGreen", 0.7)
|
||||||
|
translate([0, total_y, box_h + ins_h + 25])
|
||||||
|
rotate([180, 0, 0]) translate([0, 0, -lid_top]) lid();
|
||||||
|
}
|
||||||
|
|
||||||
|
if (part == "box") box();
|
||||||
|
else if (part == "lid") lid();
|
||||||
|
else if (part == "insert") insert();
|
||||||
|
else if (part == "print") {
|
||||||
|
box();
|
||||||
|
translate([total_x + 15, 0, 0]) lid();
|
||||||
|
translate([0, total_y + 15, 0]) insert();
|
||||||
|
}
|
||||||
|
else assembly();
|
||||||
Reference in New Issue
Block a user