frame_top.scad

//include <configuration.scad>;
extrusion=15;

use <vertex.scad>;

$fn = 24;

module frame_top() {
m3nutRad = 5.45/2/cos(30) + 0.1;
  difference() {
    vertex(extrusion);

    // M3 bolt to support idler bearings.
    //translate([0, 65, 0]) rotate([90, 0, 0]) cylinder(r=m3_radius, h=55);

    // Vertical belt tensioner.
    %translate([0, 10, 0]) rotate([18, 0, 0]) union() {
      cylinder(r=2.94/2+.2, h=30, center=true);
      //translate([0, -3, 8]) cube([2*m3_wide_radius, 6, 12], center=true);
      translate([0, 0, -2]) scale([1, 1, -1]) rotate([0, 0, 30])
        cylinder(r1=m3nutRad-0.1, r2=m3nutRad+0.3, h=10, $fn=6);
    }
  }
}

use <support.scad>;

union() {
  translate([0, 0, 7.5]) rotate([0,180,0]) frame_top();
  //vertexPad();
  mirror([1,0,0]) endBrace(extrusion);
                  endBrace(extrusion);

  color("Cyan") { // support material
    for (a=[-1,1]) supportPillar(18.2*a,-1,5);
    translate([0,0,5]) supportPillar(0,-5,5,r=0.7);
  }

}