x-axis: move motor mount away from frame, shrink endstop adjuster

Resize endstop adjuster to fit an M3 instead of M4 bolt/nut and shrink
to better constraint screw.

Move motor mount away from frame to provide more clearance.

diff --git a/scad/x-end-motor.scad b/scad/x-end-motor.scad
index e938a13..601f307 100644 (file)
--- a/scad/x-end-motor.scad
+++ b/scad/x-end-motor.scad
@@ -10,15 +10,17 @@ include <configuration.scad>
 use <x-end.scad>
 
 offs_adjuster_y = 5.5;
-adj_block_x = 12;
+adj_block_x = 9;
 adj_block_y = 10;
 adj_block_z = 32;
 motor_offs_z = 0;
 
+motor_y_offset = 7;
+
 module adjustomatic() {
 translate ([0, 0, 6.5])
    difference() {     
-       translate(v=[-(15+17/2+adj_block_x/2),offs_adjuster_y,58-adj_block_z/2]) 
+       translate(v=[-(15+17/2+adj_block_x/2),offs_adjuster_y,58.5-adj_block_z/2])
           cube(size=[adj_block_x,adj_block_y,adj_block_z],center=true);
        
        translate(v=[-(15+17/2+adj_block_x/2)-5,offs_adjuster_y,58-adj_block_z/2-8]) 
@@ -29,8 +31,8 @@ translate ([0, 0, 6.5])
 
        translate(v=[-(15+17/2+adj_block_x/2),offs_adjuster_y,58-adj_block_z/2+14]) 
            {
-         rotate([0,0,30]) #cylinder(h = 4, r = 7.5/2 , $fn = 6);
-         translate([0,0,-20]) #cylinder(h=30,r=2,$fn=16);
+         rotate([0,0,30]) #cylinder(h = 4, r = 7.0/2 , $fn = 6);
+         translate([0,0,-20]) #cylinder(h=30,r=1.6,$fn=16);
 }
 
    }
@@ -56,7 +58,7 @@ module pocket_endstop() // endstop holder grafted onto the side toward the rods
        translate([-1.5,endstop_sw_offs_adjust,0]) cube(size=[9,20.5,22]);
            
        translate([-2,endstop_sw_offs_adjust,1]) cube(size=[7,21,22]);
-       #translate([0,15.5,8]) cube(size=[10,5,20]);
+       translate([0,15.5,8]) cube(size=[10,5,20]);
 
        // screw holes for endstop switch
        translate([-2,7+endstop_sw_offs_adjust,1.5+5.5]) rotate([0,90,0]) cylinder(r=1.5,h=15);
@@ -68,20 +70,19 @@ module pocket_endstop() // endstop holder grafted onto the side toward the rods
 module x_end_motor_sr() {
      // TODO: use x_box_height
     difference() { 
-       cube(size=[8,12,10]);
-       #translate([4,11.5,9]) rotate([0,90,0]) 
-               difference() { cylinder(r=4.5,h=4,$fn=16,center=true);
-                              translate([0,0,-1]) cylinder(r=2.5,h=7,$fn=16,center=true);
-               }
-
-        #translate([9,10.6,10]) rotate([0,45,90]) cube(size=[2,11,2]);
+       cube(size=[8,14+motor_y_offset,12]);
+       #translate([4,13.5+motor_y_offset,11]) rotate([0,90,0]) difference() {
+           cylinder(r=4.5,h=4,$fn=16,center=true);
+           translate([0,0,-1]) cylinder(r=2.5,h=7,$fn=16,center=true);
+       }
+       #translate([9,12.6+motor_y_offset,12]) rotate([0,45,90]) cube(size=[2,11,2]);
     }
 }
 
 module x_end_motor_base(){
  x_end_base();
  // motor arm
- translate(v=[-15,31,26.5+motor_offs_z]) cube(size = [17,44,53], center = true);
+ translate(v=[-15,31,26.5+motor_offs_z]) cube(size = [17,44+motor_y_offset*2,53], center = true);
  // z stop adjuster
  adjustomatic();
  // x endstop holder
@@ -96,6 +97,7 @@ module x_end_motor_holes(){
  translate(v=[-1,32,30.25+motor_offs_z]){
   // Belt hole
   translate(v=[-14,1,0]) cube(size = [10,46,22], center = true);
+  translate ([0, motor_y_offset, 0]) {
   // Motor mounting holes
   translate(v=[20,-15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=1.8, $fn=30);
   translate(v=[1,-15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 12, r=screw_head_r, $fn=30);
@@ -119,7 +121,7 @@ module x_end_motor_holes(){
   translate(v=[-10,40,-30]) rotate(a=[45,0,0])  cube(size = [60,42,42], center = true);
   // Motor shaft cutout
   translate(v=[0,0,0]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=17, $fn=6);
-
+}
   // zip tie retainer for securing end stop wiring
   #translate([-5,-63,14]) difference() { cylinder(r=4.5,h=4,$fn=16);
                                           translate([0,0,-1]) cylinder(r=2.5,h=7,$fn=16);
@@ -136,8 +138,8 @@ module x_end_motor(){
   x_end_motor_base();
   x_end_motor_holes();
  }
- // strain relief (zip tie point) below the motor 
- translate([-23.5,9,53]) x_end_motor_sr(); 
+ // strain relief (zip tie point) below the motor
+ translate([-23.5,9,53]) x_end_motor_sr();
 }
 
 rotate([0,0,180])