Working itty bitty dual extruder to Wilson mount

[clinton/3d-models.git] / carriage adapter / itty-wilson.scad

diff --git a/carriage adapter/itty-wilson.scad b/carriage adapter/itty-wilson.scad
index 980eab4..f91b69e 100644 (file)
--- a/carriage adapter/itty-wilson.scad
+++ b/carriage adapter/itty-wilson.scad
@@ -28,12 +28,18 @@ Intended for use with the itty bitty dual extruder series.
 Source needs a good cleanup. Evil loops that don't take advantage of
 the geometry of the object abound.
 
+major todo:
+
+ - square hole placement is a total mess
+
 */
 
 use <MCAD/nuts_and_bolts.scad>
 
-carriage_height = 65;
-carriage_width = 50;
+$fn = 64;
+
+carriage_height = 64;
+carriage_width = 52;
 
 plate_width = 75; // wilson carriage is only 50mm wide!
 plate_depth = 6; // wilson default depth = 8, makerfarm = 6
@@ -48,7 +54,7 @@ plate_cut_y_offset = 27;
 plate_cut_bolt = 3 + hole_tolerance;
 plate_cut_x_bolt_offset = 10.5 + plate_cut_bolt / 2;
 
-plate_extra_height = 3; // make plate a bit taller so it is structurally sound
+plate_extra_height = 4; // make plate a bit taller so it is structurally sound
 
 plate_height = plate_cut_height + plate_cut_y_offset + plate_extra_height; 
 
@@ -57,7 +63,7 @@ lower_bolt_x_offset = 1.5 + plate_cut_bolt / 2;
 lower_bolt_y_offset = 3.275 + plate_cut_bolt / 2;
 
 carriage_bolt = 4 + hole_tolerance;
-carriage_hole_spacing = 24;
+carriage_hole_spacing = 23;
 carriage_clearance = 20; // holes are 20mm from bottom of plate
 carriage_y_offset =  plate_cut_y_offset + plate_cut_height + carriage_clearance;
 carriage_nut_depth = 3.2 + 3.2/2 + 0.1; // m4 nut depth + half of an m4 nut + tolerance
@@ -65,7 +71,7 @@ carriage_nut_depth = 3.2 + 3.2/2 + 0.1; // m4 nut depth + half of an m4 nut + to
 corner_radius = 3; // round off the corners to make it look nicer
 
 shelf_mount ();
-translate ([(plate_width - carriage_width) / 2, plate_height - plate_extra_height, 0]) carriage_mount ();
+translate ([(plate_width - carriage_width) / 2, plate_height - plate_extra_height/2, 0]) carriage_mount ();
 
 // mount to wilson x-carriage
 module carriage_mount () {
@@ -82,7 +88,7 @@ module carriage_mount () {
 
                    #translate ([(carriage_width - carriage_hole_spacing) / 2, (carriage_height - carriage_hole_spacing) /2, 0])
                    for (x = [0, carriage_hole_spacing], y = [0, carriage_hole_spacing]) {
-                        translate ([x, y, 0]) circle (d = carriage_bolt, $fn = 16);
+                        translate ([x, y, 0]) circle (d = carriage_bolt);
                    }
               }
          }
@@ -109,22 +115,22 @@ module shelf_mount () {
               // upper shelf mount
               translate ([0, plate_cut_y_offset, 0]) {
                    for (x = [-0.01, plate_cut_width + plate_cut_distance, plate_cut_width*2 + plate_cut_distance + plate_cut_center, plate_cut_width*3 + plate_cut_distance*2 + plate_cut_center + 0.01])
-                        translate ([x, 0, 0]) square ([plate_cut_width, plate_cut_height]);
+                        #translate ([x - hole_tolerance/2, 0, 0]) square ([plate_cut_width + hole_tolerance, plate_cut_height]);
 
                    // looks like the bolt is at the midpoint between the cut outs
                    for (x = [plate_cut_x_bolt_offset, plate_width - plate_cut_x_bolt_offset])
-                        translate ([x, plate_cut_height / 2, 0]) circle (d = plate_cut_bolt + hole_tolerance, $fn = 16);
+                        translate ([x, plate_cut_height / 2, 0]) circle (d = plate_cut_bolt + hole_tolerance);
               }
 
               // lower shelf mount
               translate ([0, lower_cut_y_offset, 0]) {
-                   for (x = [-0.01, plate_width - plate_cut_width + 0.01]) {
+                   for (x = [plate_cut_width/2 - 0.01, plate_width - plate_cut_width/2 + 0.01]) {
                         // lower cut out is closer to 6mm than 6.5mm in cad drawings
-                        translate ([x, -0.01, 0]) square ([plate_cut_width, plate_cut_height - 0.5]);
+                        translate ([x, plate_cut_height/2, 0]) square ([plate_cut_width, plate_cut_height - 0.5], center=true);
                    }
                    // I think the intention is for the screw holes to be centered over the cut out
                    for (x = [lower_bolt_x_offset, plate_width - lower_bolt_x_offset])
-                        translate ([x, plate_cut_height + lower_bolt_y_offset, 0]) circle (d = plate_cut_bolt + hole_tolerance, $fn = 16);
+                        translate ([x, plate_cut_height + lower_bolt_y_offset, 0]) circle (d = plate_cut_bolt + hole_tolerance);
               }
          }
      }