10 inch surf fins
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Surf-Fins-10inch.scad
Normal file
556
Surf-Fins-10inch.scad
Normal file
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include <BOSL2/std.scad>;
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include <BOSL2/beziers.scad>;
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include <BOSL2/rounding.scad>;
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include <BOSL2/skin.scad>;
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include <BOSL2/threading.scad>;
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include <DotScad/src/bend.scad>;
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include <DotScad/src/bend_extrude.scad>;
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include <DotScad/src/ellipse_extrude.scad>;
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include <DotScad/src/loft.scad>;
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include <common.scad>
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/**
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* Kitesurf Fins mold
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*
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*
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*
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* Requirements :
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* - The plunger normaly should be twice the height of the part
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*
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*/
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/************************************************/
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/* Parameters */
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/************************************************/
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/* [Fin Specs] */
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// Height
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fin_height = 254; // 10 inches in mm
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// Top Width
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fin_width = 270; // Width at the top in mm
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// Base Width
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fin_base = 130; // Width at the base in mm
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// Define top point
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fin_top_withdraw = 35;
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fin_edge_withdraw = 15;
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fin_start_angle = 70; // Angle [Point 0 ]
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fin_sweep = 25; // Sweep Angle [Point 1]
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fin_edge_angle = 30;
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fin_edge_strength = 30;
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fin_counter_angle = 30; // counter angle [Point 2]
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fin_counter_strength = 10; // Length [Point 2]
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// Length at the base in mm
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fin_width_tip = 5; // Width at the tip in mm
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fin_thickness = 8; // Thickness of the fin in mm
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fin_end_angle = 110;
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fin_end_strength = 30;
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// Back
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fin_back_height = 30; // Percent height
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fin_back_widthdraw = 20; // Percent height
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fin_back_angle = 20; // back angle
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fin_back_strength=30;
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/* [Base Specs] */
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base_tickness=8;
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base_extra_thickness=20;
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/* [Debugging] */
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// Showing all layers
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show_debug_layers = false;
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// Draw master profile
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draw_profile = false;
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// Draw Fin
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build_fin = false;
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/* [Mold] */
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// Mold base height
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mold_base_height = 10;
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mold_top_height = 5;
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mold_extra_width = 15;
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mold_piston_height = 10;
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resin_escape_diameter=4;
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// Diameter for screw holes in mm
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merge_holes_diameter = 6;
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piston_depth = 5;
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/* [Rendering] */
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// Rendering parts
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render_fin = false;
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render_mold = true;
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render_drill_template = false;
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parts = "all"; // [all, top, bottom]
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mold_part = "all"; // [all, top, bottom]
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// Scaling
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scale_factor = 1.0; // [0.1:0.1:2]
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// Printable rendering
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printable = true;
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$fn=64;
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/*************/
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/* Constants */
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/*************/
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/* [Hidden] */
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// Define the offset value as a constant
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OFFSET = 0.01;
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CLEARING = 0.1;
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INCH=2.54;
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X=0;
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Y=1;
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Z=2;
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/************************************************/
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/* Derived variable */
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mold_width = fin_height +2 * mold_extra_width;
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mold_length = fin_width +2 * mold_extra_width;
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mold_height = mold_base_height;
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drilling_length = mold_base_height+mold_piston_height+2*OFFSET;
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start = [0,0];
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pt1 = [
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adj_ang_to_opp(fin_height,fin_sweep)+fin_base/2,
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fin_height
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]; // Top
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top_point = [ fin_width-fin_top_withdraw,fin_height ];
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//pt1_x = adj_ang_to_opp(fin_height,fin_sweep)+fin_base/2;
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//pt1_y = fin_height;
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edge_point = [fin_width ,fin_height-fin_edge_withdraw ];
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counter_edge_point = [fin_width -70 ,fin_height-100 ];
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tail_point = [fin_width -95 ,fin_height-175 ];
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end_point = [fin_base ,0 ];
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/******************/
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/* Profile points */
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/******************/
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profile_points = [
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// *****************
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// INITIAL POINT
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// *****************
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start, // Point 0
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//[opp_ang_to_adj(fin_height/3,fin_start_angle),fin_height/3], // Handle 0
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handle(start,70,80),
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// *****************
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// TOP POINT
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// *****************
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top_point + [-fin_width/3,2], // Handle 1 (Start)
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top_point, // Top Point
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top_point + [+fin_base/7 ,0], // Handle Top (end)
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// *****************
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// EDGE POINT
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// *****************
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edge_point + [0,15],
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edge_point,
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edge_point + [0,-15], // Point Edge Point
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// *****************
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// COUNTER EDGE POINT
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// *****************
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handle(counter_edge_point,60,30),
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counter_edge_point, // Point Counter Edge
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handle(counter_edge_point,240,30),
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// *****************
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// TAIL Point
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// *****************
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handle(tail_point,60 ,40),
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tail_point,
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handle(tail_point,60+180,40),
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// *****************
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// END POINT
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// *****************
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handle([fin_base,0],75,40),
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[fin_base,0] // End point
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];
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profile_path = translate_path( asCurve(profile_points),-fin_width/2 );
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/**
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* Draws a profile based on Bezier path points with optional debug visualization.
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*
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* @param points - Array of points defining the Bezier path.
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* @param debug - Boolean flag to enable/disable debug visualization. Defaults to true.
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*
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* This module:
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* - Calculates the closest point on the Bezier path to a fixed point.
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* - Draws the Bezier path with debug information if debug is true.
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* - Optionally shows spheres at specific points for debugging (currently commented out).
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*/
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module drawProfile( points,debug = true ){
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debugPoint (start, "Start", "Red" );
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debugPoint (top_point, "Top", "Blue" );
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debugPoint (edge_point, "Edge", "Brown" );
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debugPoint (counter_edge_point, "Counter Edge", "Brown" );
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debugPoint (tail_point, "Tail", "Yellow" );
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debugPoint (end_point, "End", "Yellow" );
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pt = [100,0];
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pos = bezpath_closest_point(points, pt);
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xy = bezpath_points(points,pos[0],pos[1]);
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debug_bezier(points, N=3,width=0.2);
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//color("red") translate(pt) sphere(r=6);
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//color("blue") translate(xy) sphere(r=6);
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}
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// *****************
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// * Fin Drawing *
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// *****************
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if ( render_fin ) {
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scale([scale_factor, scale_factor, scale_factor])
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buildFin( fin_thickness );
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}
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/**
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* Render Mold
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*/
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if ( render_mold ) buildMold();
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if ( render_drill_template ) buildDrillTemplate();
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/**
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* Build mold
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*
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*/
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module buildMold() {
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// Bottom mold
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if (mold_part != "top")
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difference() {
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case(mold_base_height,true);
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// Piston
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down(piston_depth-OFFSET) fwd(20) bottomInsert();
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}
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// Top Mold
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if (mold_part != "bottom")
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up(printable ? 0 : 60) fwd(printable ? fin_height+50 : 0) down(mold_base_height) mirror([0,0,printable ? 1 : 0 ]) {
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difference() {
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union() {
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// case
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case(mold_top_height,false);
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// Piston
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mirror([1,0,0])
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down(mold_top_height+piston_depth-OFFSET) fwd(20) topPiston();
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};
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resin_escape(40);
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}
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}
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}
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/**
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* Mold Case
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*
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* @param height - Height of the case
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* @param bottom - Is bottom or top
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*/
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module case( height , bottom=true ) {
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difference() {
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diff() cuboid( [ mold_length, mold_width, height ],
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rounding=4,
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edges=[bottom ? BOTTOM: TOP],
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anchor=TOP ){
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// Drills
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align(BOTTOM,[FRONT+LEFT,FRONT+RIGHT,BACK+LEFT,BACK+RIGHT],inset=10,overlap=-OFFSET)
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color("orange")
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tag("remove")
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drilling();
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};
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// Material holes
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mirror([bottom ? 0:1,0,0])
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back(38) left(55)
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color("Red")
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up(OFFSET)
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rounded_triangle(radius=3, height=height+2*OFFSET);
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// Length hole
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fwd(32) cuboid([120,10,50],rounding=5);
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// Side holes
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left(67) cuboid([10,40,50],rounding=5);
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right(67) cuboid([10,40,50],rounding=5);
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}
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}
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/**
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* Drill template
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*
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*/
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module buildDrillTemplate() {
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spacing = 38.5;
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drill_depth = 15;
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drill_diameter = 6;
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template_height = 5;
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p1 = 20;
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p2 = p1-spacing;
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mirror([0,0,printable ? 1 : 0]) difference() {
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left(1) color ("Orange") cuboid([fin_width+7,15,10],rounding=3);
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down(OFFSET) {
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hull(){
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left(28) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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left(55) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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}
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hull(){
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left(12) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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left(-10) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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}
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hull(){
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left(-27) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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left(-53) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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}
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}
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xrot(-90) buildFin(fin_thickness + 2*CLEARING );
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//left(60) cylinder(h=20,r=6/2);
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up(template_height+OFFSET)
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{
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left(p1)
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cylinder(h=drill_depth+template_height,r=drill_diameter/2,orient=DOWN);
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left(p2)
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cylinder(h=drill_depth,r=drill_diameter/2,orient=DOWN);
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}
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}
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}
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module rounded_triangle(radius, height) {
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triangle_points = [[0, 0], [75, 0], [0, -35]]; // Equilateral triangle with side length 100
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rounded_shape = round_corners( triangle_points, r=radius );
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mirror([0,0,1]) linear_extrude(height = height) polygon(rounded_shape);
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}
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// *****************
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// * Bottom insert *
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// *****************
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module bottomInsert() {
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debug=true;
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//layer_profile = pathProcess(profile_path);
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layer_profile = profile_path;
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skin( [ layer_profile,expandPath(layer_profile,3) ], z=[0,piston_depth], slices=0 )
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//up(debug ? 2 : 0)
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up(OFFSET)
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buildFinSide(true)
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;
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}
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// *****************
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// * Top piston *
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// *****************
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module topPiston() {
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debug=true;
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layer_profile = profile_path;
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difference() {
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skin( [ layer_profile,expandPath(layer_profile,3) ], z=[0,piston_depth], slices=0 );
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down(OFFSET)
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buildFinSide(false);
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}
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}
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/**
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* Build fin
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*
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*/
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module buildFin( thickness ) {
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union() {
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if (parts != "bottom") buildFinSide( thickness );
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if (parts != "top") buildFinSide( thickness , true );
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}
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}
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/**
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* Build fin side
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*
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* @param flip - Define it it is top or bottom fin side
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*/
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module buildFinSide(thickness,flip=false) {
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mirror([0,0,flip ? 1 : 0])
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color(flip ? "Gray" : "LightGray") /*up(fin_thickness/4)*/ /*down(fin_thickness) */
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ellipse_extrude( thickness / 2 )
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polygon(profile_path);
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}
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module resin_escape(length) {
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color ("Blue") cylinder(h=length, r=resin_escape_diameter/2);
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}
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// *****************
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// * Drilling *
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// *****************
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module drilling(){
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/*fwd(20)*/ color("Red") /*up(mold_piston_height+5)*/ up(-OFFSET)
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orient(DOWN)
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threaded_rod(
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d=merge_holes_diameter,
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l=drilling_length,
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pitch=1.5,
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anchor=BOTTOM,
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//orient=BOTTOM
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);
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}
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module subtracted(anchor) {
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color("Red") fwd(40) left(40) cube([fin_width+100,fin_height+100,20],anchor=anchor);
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}
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// Draw fin profile
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if (draw_profile) drawProfile( profile_points, true );
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/**
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* Displays debug information for a path by visualizing its self-crossings.
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*
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* @param path - The input path to analyze for self-crossings.
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*
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* This module:
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* - Splits the path at points where it intersects itself.
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* - Renders each segment of the split path with different colors for easy identification.
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*/
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module showDebugPath(path) {
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assert(is_path(path),"Path to show is not a path");
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assert(is_path_simple(path),"Path is not simple");
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rainbow(split_path_at_self_crossings(path))
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stroke($item, closed=false, width=0.2);
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}
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/**
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* Adds a base to the given path by extending it with additional points.
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*
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* @param path - The original path to which the base will be added.
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* @return A new path with an added base.
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*
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* This function concatenates:
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* - The original path (`pathProfile`).
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* - A point `fin_base` which might represent the start or end of the base.
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* - Points for additional thickness (`-base_extra_thickness`) at both ends of the base.
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*/
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function addBase(path) = concat(path,[[fin_base,-base_extra_thickness],[0,-base_extra_thickness]]);
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/**
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* Function to translate a path manually along X and Y
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*/
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function translate_path(path, dx=0, dy=0) =
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[for (p = path) [p[0] + dx, p[1] + dy]];
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// Function to print points of a path
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module print_path_points(path) {
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for (i = [0:len(path)-1]) {
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echo(str("\t Point ", i, ": [", path[i][0], ", ", path[i][1], "]"));
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}
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}
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echo ("**********************");
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echo ("* Configuration *");
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echo ("**********************");
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echo ("Base thickness" ,str(base_tickness," mm"));
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function asCurve(points) = bezier_curve(points/*,N=3*/,splinesteps=128);
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function xAngleFactor(angle) = angle > 0 && angle < 180 ? 1 : -1;
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function yAngleFactor(angle) = angle > -90 && angle < 90 ? 1 : -1;
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//function counterTop(x,withdraw,height) = [x-withdraw, height ];
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function handleStart(x,withdraw,angle,strength) = [x+adj_ang_to_opp(strength,angle), x-withdraw +strength];
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function handleEnd(x,withdraw,angle,strength) = [x-adj_ang_to_opp(strength,angle), x-withdraw -strength];
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function endHandle(angle)=
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angle < 90 ?
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[fin_base + adj_ang_to_opp(fin_end_strength,90-angle),fin_end_strength]
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:
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[fin_base - adj_ang_to_opp(fin_end_strength,angle-90),fin_end_strength]
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;
|
||||
|
||||
//function backPoint() = [fin_base-(fin_back_widthdraw/100*fin_base),fin_back_height/100*fin_height];
|
||||
|
||||
function decrease_y(points, percentage) = [ for (p = points) [p[0], p[1] * (1 - percentage/100)]];
|
||||
|
||||
function pathProfile(points) = bezpath_curve(points,N=3);
|
||||
|
||||
// Surf Fin profile
|
||||
fin_profile = pathProfile( profile_points );
|
||||
|
||||
function expandPath(path,delta) =
|
||||
offset(
|
||||
deduplicate(path),
|
||||
delta=delta,
|
||||
chamfer=false,
|
||||
same_length=true
|
||||
)
|
||||
;
|
||||
|
||||
|
||||
function inches_to_cm(inches) = inches * 2.54;
|
||||
|
||||
|
||||
echo ("pt1",pt1);
|
||||
echo ("pt1[X]",pt1[X]);
|
||||
echo ("pt1[Y]",pt1[Y]);
|
||||
echo ("X",X);
|
||||
echo ("Y",Y);
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
42
common.scad
Normal file
42
common.scad
Normal file
@ -0,0 +1,42 @@
|
||||
|
||||
|
||||
|
||||
// Constants
|
||||
|
||||
// Cooordinates
|
||||
X=0;
|
||||
Y=1;
|
||||
Z=2;
|
||||
|
||||
// Offset
|
||||
OFFSET=0.01;
|
||||
|
||||
|
||||
/*
|
||||
* Handle for bézier point
|
||||
*
|
||||
* @param point - Point to manage
|
||||
* @param angle - Angle starting as 3h00
|
||||
* @param strength - Handle distance from manage point
|
||||
*/
|
||||
|
||||
function handle(point,angle,strength) = [
|
||||
point[0] + polar_to_xy(strength,angle)[0] ,
|
||||
point[1] + polar_to_xy(strength,angle)[1]
|
||||
];
|
||||
|
||||
|
||||
|
||||
|
||||
module debugPoint(point, id, color) {
|
||||
translate(point) {
|
||||
color(color) sphere(r = 1.5);
|
||||
|
||||
translate([3, 3, 0.6]) {
|
||||
color("white")
|
||||
scale([0.2, 0.2, 1])
|
||||
linear_extrude(height = 0.1)
|
||||
text(str(id), size = 20, halign = "center", valign = "center");
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user