// -*- C -*-
-fdia=2.85;
-lightduty=false;
+fdia=2.85; // or 1.75
+lightduty=false; // or true
+
slop=0.5;
bigslop=slop*2;
storarm_cope_hubaxle_mk1 = true;
+storarm_screw_hole = 4;
+storarm_screw_hole_slop = 0.5;
+storarm_besides_hole = 4;
+
+storarm_under_hole = 5;
+storarm_screw_hole_head = 8.8;
+storarm_screw_hole_head_slop = 1.5;
+
// calculated
storarm_axlerad = hubaxlerad - storarm_axleslop;
-storarm_mainlen = hubaxlelen + (storarm_cope_hubaxle_mk1 ? 10 : 0);
+storarm_mainlen = hubaxlelen*2 + storarm_axleslop
+ + (storarm_cope_hubaxle_mk1 ? 10 : 0);
storarm_totlen = storarm_mainlen + storarm_hooklen;
storarm_mid_off_y = storarm_axlerad;
square([storarm_base_w, storarm_base_h]);
}
-module StorageArm(){ ////toplevel
+module StorageArmAtMountingHoles(){
+ bes = storarm_besides_hole + storarm_screw_hole;
+
+ x0 = bes;
+ x1 = storarm_base_w-bes;
+ y1 = storarm_base_h - bes;
+ y0 = bes;
+
+ for (pos=[ [x0, y1],
+ [x1, y1],
+ [x1, y0] ]) {
+ rotate([0,90,0])
+ translate([pos[0] - storarm_base_w,
+ pos[1] - storarm_base_off_y, -storarm_base_d])
+ children();
+ }
+}
+
+module StorageArmRight(){ ////toplevel
shear = storarm_hookheight / (storarm_mainlen/2);
StorageArmDiagPart(-1, storarm_mainlen/2+1, shear, 0);
StorageArmBaseTemplate();
StorageArmDiagPart(-1, 0, shear, 0);
}
+ StorageArmAtMountingHoles(){
+ cylinder(r= storarm_screw_hole_head/2,
+ h=10);
+ }
}
+ StorageArmAtMountingHoles(){
+ translate([0,0,-1])
+ cylinder(r= (storarm_screw_hole + storarm_screw_hole_slop)/2 ,
+ h=20);
+ translate([0,0,storarm_under_hole])
+ cylinder(r= (storarm_screw_hole_head + storarm_screw_hole_head_slop)/2,
+ h=20);
+ }
+ }
+}
+
+module StorageArmLeft(){ ////toplevel
+ mirror([1,0,0]) StorageArmRight();
+}
+
+module StorArmHoleTest(){ ////toplevel
+ sz = storarm_screw_hole_head + storarm_besides_hole*2;
+ intersection(){
+ StorageArmRight();
+ translate([-50, -storarm_base_off_y, -1])
+ cube([100, sz, sz+1]);
}
}
//AxleWasher();
//AxlePin();
//AxleFrictionWasher();
-StorageArm();
+//StorageArmLeft();
+//StorArmHoleTest();
//Demo();