103 lines
3.7 KiB
OpenSCAD
103 lines
3.7 KiB
OpenSCAD
// =====================================================
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// Numbered Keycap Generator - Multi-Color Printing
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// =====================================================
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// This script generates 20 numbered keycap STL files
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// with recessed numbers for multi-material printing
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//
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// Numbers are 14mm tall, recessed 0.6mm deep
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// Positioned on triangular top face, centered on apex-to-midpoint line
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// Apex oriented as "up" (aligned with Cherry MX cross arm)
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// =====================================================
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// ----- ADJUSTABLE PARAMETERS -----
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number_to_generate = 1; // Change this value (1-20) to generate different numbers
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number_height = 14; // Height of numbers in mm
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number_depth = 0.6; // Recess depth for color saturation
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text_font = "Liberation Sans:style=Bold"; // Font (use bold for visibility)
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text_thickness = number_depth; // Same as recess depth
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// Triangular face positioning
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// The top face is opposite the stem pocket
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// One apex aligns with a Cherry MX cross arm
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face_z_position = 8.0; // Approximate Z height of top triangular face
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face_rotation = 0; // Rotation to align apex with cross arm
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text_y_offset = 0; // Offset along apex-to-midpoint centerline
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$fn = 128; // Circle smoothness
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base_stl_filename = "Body5(1)_scaled_98percent.stl";
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// =====================================================
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// CENTERED IMPORT MODULE
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// =====================================================
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module centered_base() {
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// Import the scaled keycap base
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// Already centered from the previous scaling script
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import(base_stl_filename);
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}
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// =====================================================
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// NUMBERED TEXT MODULE
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// =====================================================
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module recessed_number(num) {
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// Create text for the number
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rotate([0, 0, face_rotation]) {
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translate([0, text_y_offset, face_z_position]) {
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rotate([0, 0, 0]) { // Text faces up
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linear_extrude(height = text_thickness + 1) { // +1 to ensure clean cut
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text(
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str(num),
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size = number_height,
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halign = "center",
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valign = "center",
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font = text_font
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);
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}
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}
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}
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}
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}
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// =====================================================
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// MAIN MODEL
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// =====================================================
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difference() {
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// The base keycap
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centered_base();
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// Subtract the recessed number
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recessed_number(number_to_generate);
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}
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// =====================================================
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// USAGE INSTRUCTIONS
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// =====================================================
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//
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// MANUAL GENERATION (one at a time):
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// 1. Change number_to_generate value (1-20)
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// 2. Render with F6
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// 3. Export as STL with desired filename
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//
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// COMMAND LINE GENERATION (all 20 files):
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// Use the companion batch script or run:
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// openscad -D number_to_generate=N -o Body5_numN.stl generate_numbered_keycaps.scad
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//
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// ADJUSTING POSITION:
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// - face_z_position: Move numbers up/down on the keycap
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// - face_rotation: Rotate around Z axis to align with cross arm
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// - text_y_offset: Move along the apex-to-midpoint centerline
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//
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// MULTI-MATERIAL PRINTING:
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// 1. Slice the numbered STL normally
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// 2. At layer with recess (approx 0.6mm from top), insert material change
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// 3. Printer will pause, swap filament for number color
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// 4. Resume printing - number will be filled with new color
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// 5. At end of recess depth, change back to original material
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//
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// =====================================================
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