Added adjustable bed mounts. Replaced extruder latch with compression screw.

GDMUtils.scad

@@ -1176,7 +1176,7 @@ module tube(h=1, r=1, r1=undef, r2=undef, wall=0.5, center=false)
 	r2 = (r2==undef)? r : r2;
 	difference() {
 		cylinder(h=h, r1=r1, r2=r2, center=center);
-		cylinder(h=h+0.03, r1=r1-wall, r2=r2-wall, center=center);
+		down(0.25) cylinder(h=h+1, r1=r1-wall, r2=r2-wall, center=center);
 	}
 }
 

Makefile

@@ -70,7 +70,7 @@ wiki/v1.5-%.png: %.scad config.scad GDMUtils.scad
 
 wiki/v1.5-snappy_full.png: full_assembly.scad $(wildcard *.scad)
 	${OPENSCAD} -o $(subst wiki/v1.5-,tmp_,$@) --imgsize=3200,3200 --projection=p \
-	    --csglimit=2000000 --camera=0,0,245,65,0,30,3000 -D '$$t=0.5' $<
+	    --csglimit=2000000 --camera=0,0,245,65,0,30,3000 -D '$$t=0.0' $<
 	${CONVERT} -trim -resize 800x800 -border 10x10 -bordercolor '#ffffe5' $(subst wiki/v1.5-,tmp_,$@) $@
 	rm -f $(subst wiki/v1.5-,tmp_,$@)
 

STLs/bridge_segment_parts.stl

@@ -3758,6 +3758,13 @@ solid Model
       vertex -30.5 49.75 5
     endloop
   endfacet
+  facet normal 0 0 0
+    outer loop
+      vertex -35 2 5
+      vertex -35 44 5
+      vertex -35 28 5
+    endloop
+  endfacet
   facet normal 0 0 1
     outer loop
       vertex 30.5 2 5
@@ -3769,7 +3776,7 @@ solid Model
     outer loop
       vertex -35 2 5
       vertex -35 57.75 5
-      vertex -35 28 5
+      vertex -35 44 5
     endloop
   endfacet
   facet normal 0 0 1
@@ -3842,13 +3849,6 @@ solid Model
       vertex 30.5 49.75 5
     endloop
   endfacet
-  facet normal 0 0 0
-    outer loop
-      vertex -35 28 5
-      vertex -35 57.75 5
-      vertex -35 44 5
-    endloop
-  endfacet
   facet normal 0 0 1
     outer loop
       vertex 35 44 5

STLs/cable_chain_mount_parts.stl

@@ -2344,13 +2344,6 @@ solid Model
       vertex -33 -14 9.5
     endloop
   endfacet
-  facet normal 0 0 0
-    outer loop
-      vertex 22 -14 0
-      vertex 22 -14 3.5
-      vertex 22 -14 9.5
-    endloop
-  endfacet
   facet normal -1 0 0
     outer loop
       vertex -40 8.05 0
@@ -2393,6 +2386,13 @@ solid Model
       vertex 22 -20 3.5
     endloop
   endfacet
+  facet normal 0 0 0
+    outer loop
+      vertex 22 -14 0
+      vertex 22 -14 3.5
+      vertex 22 -14 15
+    endloop
+  endfacet
   facet normal 0 1 0
     outer loop
       vertex -50 8.05 0
@@ -5375,13 +5375,6 @@ solid Model
       vertex -33 -14 15
     endloop
   endfacet
-  facet normal 0 0 0
-    outer loop
-      vertex 22 -14 0
-      vertex 22 -14 9.5
-      vertex 22 -14 15
-    endloop
-  endfacet
   facet normal -1 0 0
     outer loop
       vertex -40 8.05 0
@@ -6502,6 +6495,13 @@ solid Model
       vertex 22 -20 9.5
     endloop
   endfacet
+  facet normal 0 0 0
+    outer loop
+      vertex 22 -14 3.5
+      vertex 22 -14 9.5
+      vertex 22 -14 15
+    endloop
+  endfacet
   facet normal -0.2058 0.7054 -0.6783
     outer loop
       vertex -45.7804 8.05 3.5769

adjustment_screw_parts.scad

@@ -0,0 +1,69 @@
+include <config.scad>
+use <GDMUtils.scad>
+use <acme_screw.scad>
+
+$fa=2;
+$fs=1;
+
+module adjustment_screw(slop=0) {
+	d = adjust_screw_diam+slop;
+	h = adjust_screw_length;
+	pitch = adjust_screw_pitch;
+	pa = adjust_screw_angle;
+	knob_h = adjust_screw_knob_h;
+	knob_d = adjust_screw_knob_d;
+	slot_w = 2;
+	up(h/2) {
+		up(knob_h) {
+			difference() {
+				// Threads
+				down(0.05) acme_threaded_rod(d=d, l=h+0.1, thread_depth=adjust_thread_depth, pitch=pitch, thread_angle=pa);
+
+				// Bevel thread ends.
+				up(h/2-2+0.05) {
+					difference() {
+						cylinder(d=d+1, h=2, center=false);
+						down(0.05) cylinder(d1=d, d2=d-4, h=2.1, center=false);
+					}
+				}
+			}
+		}
+
+		// Screw head
+		down(h/2-knob_h/2) {
+			difference() {
+				cylinder(h=knob_h, d=knob_d, center=true);
+				down(25/2) {
+					xrot(90) cylinder(d=25, h=slot_w, center=true);
+					yrot(90) cylinder(d=25, h=slot_w, center=true);
+				}
+			}
+		}
+	}
+}
+//!adjustment_screw();
+
+
+module test_nut(slop=0) {
+	d = adjust_screw_diam+slop;
+	pitch = adjust_screw_pitch;
+	nut_h = adjust_screw_diam;
+	nut_d = 16/cos(360/6/2);
+	difference() {
+		cylinder(d=nut_d, h=nut_h, center=false, $fn=6);
+		down(5+1) adjustment_screw(slop=slop);
+		down(5+1+printer_slop) adjustment_screw(slop=slop);
+		up(adjust_thread_depth/2) cylinder(d1=d+1, d2=d-2*adjust_thread_depth, h=adjust_thread_depth+1/2+0.05, center=true);
+		up(nut_h-adjust_thread_depth/2) cylinder(d1=d-2*adjust_thread_depth, d2=d+1, h=adjust_thread_depth+1/2+0.05, center=true);
+	}
+}
+
+
+module adjustment_screw_parts() { // make me
+	adjustment_screw();
+	//right(20) test_nut(slop=2*printer_slop);
+}
+adjustment_screw_parts();
+
+
+// vim: noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap

compression_screw_parts.scad

@@ -0,0 +1,53 @@
+include <config.scad>
+use <GDMUtils.scad>
+use <acme_screw.scad>
+
+$fa=2;
+$fs=1;
+
+module compression_screw(slop=0) {
+	d = adjust_screw_diam+slop;
+	h = adjust_screw_length;
+	pitch = adjust_screw_pitch;
+	pa = adjust_screw_angle;
+	knob_h = adjust_screw_knob_h;
+	knob_d = 20;
+	slot_w = 2;
+	up(h/2) {
+		up(knob_h) {
+			difference() {
+				// Threads
+				down(0.05) acme_threaded_rod(d=d, l=h+0.1, thread_depth=adjust_thread_depth, pitch=pitch, thread_angle=pa);
+
+				// Bevel thread ends.
+				up(h/2-2+0.05) {
+					difference() {
+						cylinder(d=d+1, h=2, center=false);
+						down(0.05) cylinder(d1=d, d2=d-4, h=2.1, center=false);
+					}
+				}
+
+				// Strengthening hole
+				cylinder(h=2*h, d=0.5, center=true, $fn=3);
+			}
+		}
+
+		// Screw head
+		down(h/2-knob_h/2) {
+			difference() {
+				cylinder(h=knob_h, d=knob_d, center=true);
+				zring(r=knob_d/2+5/4, n=8) cylinder(d=5, h=knob_h*3, center=true);
+			}
+		}
+	}
+}
+//!compression_screw();
+
+
+module compression_screw_parts() { // make me
+	compression_screw();
+}
+compression_screw_parts();
+
+
+// vim: noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap

config.scad

@@ -35,21 +35,27 @@ motor_shaft_size    =  5;    // mm diameter of NEMA17 motor shaft.
 motor_shaft_length  = 20;    // mm length of exposed NEMA17 motor shaft.
 motor_shaft_flatted = true;  // Is motor shaft keyed? (RECOMMENDED)
 
-// Currently configured for 3/8" ACME threaded rod.
 lifter_screw_diam   = 60.0; // mm
 lifter_screw_thick  = 20.0; // mm
 lifter_screw_pitch  =  8.0; // mm lift per revolution
 lifter_screw_angle  = 50.0; // degrees tooth face angle
 
+adjust_screw_diam   =  8.0; // mm
+adjust_screw_pitch  =  3.0; // mm
+adjust_screw_length = 25.0; // mm
+adjust_screw_angle  = 50.0; // mm
+adjust_screw_knob_d = 12.0; // mm
+adjust_screw_knob_h =  5.0; // mm
+
 // Mechanical endstop bare microswitch.
 endstop_hole_spacing =  9.5; // mm
 endstop_hole_inset   =  8.0; // mm
 endstop_hole_hoff    = 10.0; // mm
 endstop_click_voff   =  3.0; // mm
 endstop_screw_size   =  2.5; // mm
-endstop_length       = 19.9; // mm
-endstop_thick        =  6.7; // mm
-endstop_depth        = 11.0; // mm
+endstop_length       = 19.8; // mm
+endstop_thick        =  6.5; // mm
+endstop_depth        = 10.0; // mm
 
 // Standard Mk2b Heated Build Platform from RepRapDiscount.com
 hbp_width       = 215;   // mm
@@ -59,8 +65,8 @@ hbp_hole_length = 208.5; // mm
 hbp_screwsize   =   3;   // mm
 
 // Standard 200mm square borosilicate glass build platform
-glass_width     = 214;   // mm
-glass_length    = 200;   // mm
+glass_width     = 200;   // mm
+glass_length    = 214;   // mm
 glass_thick     =   3;   // mm
 
 // Cable chain dimensions
@@ -137,6 +143,7 @@ motor_top_z = platform_z-platform_thick-rack_base-rack_height-gear_base-2;
 lifter_tooth_depth = lifter_screw_pitch / 3.2;
 z_joiner_spacing = lifter_screw_diam + 2*lifter_tooth_depth + joiner_width;
 z_base_height = rail_height + groove_height + 2*platform_thick;
+adjust_thread_depth = adjust_screw_pitch/3.2;
 
 wall_styles = ["thinwall", "corrugated", "crossbeams"];
 wall_style = wall_styles[wall_styling];

docs/assembly/index.html

@@ -69,7 +69,7 @@ UL {
 <table><tr><td class="befor"><img src="y_axis_assembly_1_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="y_axis_assembly_1_after.png"></td></tr></table>
 </li>
 <li class="step"><h3>Step 2</h3>
-<div class="desc">Join opposing platform supports to either side of the sled endcap. Point the tabs toward the side with the joiners.</div>
+<div class="desc">Join opposing glass bed supports to either side of both Y sled endcaps. Screw an adjustment screws into each of the supports, leaving them loose for now.</div>
 <table><tr><td class="befor"><img src="y_axis_assembly_2_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="y_axis_assembly_2_after.png"></td></tr></table>
 </li>
 <li class="step"><h3>Step 3</h3>