retrofit part added

S12014_retrofit.scad

@@ -0,0 +1,52 @@
+
+// universal values
+$fn = 30;
+eps = 0.1;
+
+// rough measurements from a S1 2014 3D printer
+machine_height = 563;  // measured from metal body without acrylic sidepanel
+machine_depth = 467; // measured from top arms to back.
+machine_width = 435;  // measured between metal body arms
+arm_height= 58; // metal body arms measured along outside top to lower side 
+arm_width = 41;  // metal body arms measured across the top
+side_panel_mount_screw_dist_TB = 501;  // top to bottom
+side_panel_mount_screw_dist_FB = 371;   // front to back
+
+
+
+// S1 2014 retrofit improvements checklist
+//
+//replace the wiring for motion
+//brace the arms for tramming - allow controlled hoz and ver alignment over +/-4mm
+//replace the build platform insert with a 3 point mounter version
+//upgrade the gantry to reduce vibration
+//replace the platform with 3 point system for easy adjustment
+//drill out a set of mounting holes on the back
+//fasten the vertical rods at the back of the machine
+//reduce dust, debris and thermal interferance
+
+
+
+
+module brace_arm(length=2,thickness=1,brace_OD=1,brace_ID=0.25){
+    difference(){   
+        hull(){
+           translate([length/2,0,0] )cylinder(r=brace_OD/2,h=thickness);
+           translate([-length/2,0,0])cylinder(r=brace_OD/2,h=thickness);
+        }
+        union(){
+            hull(){
+               translate([length/2+5,0,-thickness/2] )cylinder(r=brace_ID/2,h=thickness*2);
+               translate([length/2-5,0,-thickness/2] )cylinder(r=brace_ID/2,h=thickness*2);
+            }
+           translate([-length/2,0,-thickness/2] )cylinder(r=brace_ID/2,h=thickness*2);
+
+            hull(){
+            translate([length/2-25,0,thickness/2])rotate([0,90,0])cylinder(r=brace_ID/4,h=brace_ID+26);
+            translate([length/2-25,0,thickness])rotate([0,90,0])cylinder(r=brace_ID/4,h=brace_ID+26);
+            }
+                }
+    }
+}
+
+brace_arm(side_panel_mount_screw_dist_TB,12,25,12);