ZLink.scad

// z_threaded_bar_link (a.k.a. z-link)
//
// These are the plastic parts that link the XPlatform to the 
// Z-axis threaded bars.
//
// (c) 2013 Metamáquina <http://www.metamaquina.com.br/>
//
// Author:
// * Felipe C. da S. Sanches <fsanches@metamaquina.com.br>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

include <Metamaquina2.h>;
include <ZLink.h>;
include <BillOfMaterials.h>;
include <render.h>;

module ZLink(clearance = 0.2, hull_size=0){
  BillOfMaterials(category="3D Printed", partname="ZLink", ref="MM2_ZL");

  material("ABS"){
    difference(){
      union(){
        linear_extrude(height=2.6){
          difference(){
	          hull(){
              for (i=[-1,1])
      			    translate([i*dx_z_threaded, 0])
      			    circle(r=6);
	          }
            for (i=[-1,1])
	            translate([i*dx_z_threaded, 0])
	            circle(r=m3_diameter/2, $fn=20);
          }
        }
        for (i=[-1,1])
      		translate([i*dx_z_threaded, 0, 2.6]) cylinder(r=5, h=2, $fn=6);
      }

      for (i=[-1,1])
        translate([i*dx_z_threaded, 0, 2]) cylinder(r=3, h=5, $fn=6);
    }

    translate([0,Zlink_hole_height, ZLink_rod_height])
    rotate([90, 0, 0]){
      linear_extrude(height=XPlatform_height - thickness)
      difference(){
        circle($fn=6, r=11);
        circle($fn=6, r=8);
      }

      translate([0,0,7]){
        linear_extrude(height=4)
        difference(){
	        circle($fn=6, r=10);
		    hull(){
			    for (i=[-1,1])
			    translate([0,i*hull_size/2])
		        circle($fn=20, r=(8+clearance)/2);
		    }
        }
      }
    }
  }
}

ZLink();