eaaf17cd4c
Migrate 3D abacus preview generation from server-side OpenSCAD to client-side WASM execution using web workers. Changes: - Add openscad-wasm-prebuilt dependency for browser-based rendering - Refactor STLPreview to use web worker for non-blocking WASM execution - Create openscad.worker.ts for isolated 3D model generation - Add abacus-inline.scad template for parametric abacus generation - Improve preview debouncing (500ms) and error handling Benefits: - No server-side OpenSCAD dependency required - Faster preview updates (no network roundtrip) - Better UX with non-blocking worker execution - Consistent rendering across environments 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
48 lines
1.6 KiB
OpenSCAD
48 lines
1.6 KiB
OpenSCAD
// Inline version of abacus.scad that doesn't require BOSL2
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// This version uses a hardcoded bounding box size instead of the bounding_box() function
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// ---- USER CUSTOMIZABLE PARAMETERS ----
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// These can be overridden via command line: -D 'columns=7' etc.
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columns = 13; // Total number of columns (1-13, mirrored book design)
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scale_factor = 1.5; // Overall size scale (preserves aspect ratio)
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// -----------------------------------------
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stl_path = "/3d-models/simplified.abacus.stl";
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// Known bounding box dimensions of the simplified.abacus.stl file
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// These were measured from the original file
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bbox_size = [186, 60, 120]; // [width, depth, height] in STL units
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// Calculate parameters based on column count
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// The full STL has 13 columns. We want columns/2 per side (mirrored).
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total_columns_in_stl = 13;
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columns_per_side = columns / 2;
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width_scale = columns_per_side / total_columns_in_stl;
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// Column spacing: distance between mirrored halves
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units_per_column = bbox_size[0] / total_columns_in_stl; // ~14.3 units per column
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column_spacing = columns_per_side * units_per_column;
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// --- actual model ---
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module imported() {
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import(stl_path, convexity = 10);
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}
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// Create a bounding box manually instead of using BOSL2's bounding_box()
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module bounding_box_manual() {
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translate([-bbox_size[0]/2, -bbox_size[1]/2, -bbox_size[2]/2])
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cube(bbox_size);
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}
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module half_abacus() {
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intersection() {
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scale([width_scale, 1, 1]) bounding_box_manual();
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imported();
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}
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}
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scale([scale_factor, scale_factor, scale_factor]) {
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translate([column_spacing, 0, 0]) mirror([1,0,0]) half_abacus();
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half_abacus();
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}
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