0a1,8
> use <scad-utils/shapes.scad>
> use <scad-utils/trajectory.scad>
> use <scad-utils/trajectory_path.scad>
> use <scad-utils/transformations.scad>
> use <sweep.scad>
> use <extrusion.scad>
> 
> 
13a22,25
> //Basic dimensions of the ribs
> rib_th = 8;
> rib_w = 20.6;
> 
25a38,48
> //2D shape of rib. Flat sides rounded ends
> rib2D = rounded_rectangle_profile(size=[rib_th,rib_w], r = rib_th/2);
> //Path of sweep for back rib
> path_def = [
>     trajectory(forward = 60, pitch = 90)
> ];
> 
> //Turn the trajectories into an array of transformations
> //representing the path
> sweep_path = quantize_trajectories(path_def, steps=100, loop=false);
> 
33,36c56,59
<             translate([0,0,base_h/2])
<             cube([base_l, base_w, base_h],
<                 center = true);
<             //[ 12.56, -6.99, 17.54 ]
---
> //            translate([0,0,base_h/2])
> //            cube([base_l, base_w, base_h],
> //                center = true);
> //            //[ 12.56, -6.99, 17.54 ]
38,40c61,63
<             translate([12.8,0,total_h - upper_h/2])
<             cube([upper_l, upper_w, upper_h],
<                 center = true);
---
> //            translate([12.8,0,total_h - upper_h/2])
> //            cube([upper_l, upper_w, upper_h],
> //                center = true);
42,47c65,74
<             hull_shape([
<                 [ -41.33, 8.53, 60.00 ],
<                 [ -41.33, 8.53, 47.00 ],
<                 [ -21.33, 8.53, 41.00 ],
<                 [ -31.33, 8.53, 60.00 ]],
<                 y_sym = true) cube(0.01,center=true);
---
> //            hull_shape([
> //                [ -41.33, 8.53, 60.00 ],
> //                [ -41.33, 8.53, 47.00 ],
> //                [ -21.33, 8.53, 41.00 ],
> //                [ -31.33, 8.53, 60.00 ]], 
> //                y_sym = true) cube(0.01,center=true);
>             //********** Back Rib **********
>             translate([27,0,5])
>             rotate([0,-40,0])
>             sweep(rib2D, sweep_path);