// Set
// fdia=2.85
// lightduty=false
-// (or look in filamentspool-sm.scad).
-//
// And print one of these, according to taste
// StorageArmLeft
// StorageArmRight
// NB that the `light duty' version of this is shorter and
// will only take two `light duty' spools.
//
-// For the above, I used the Cura `High detail' PLA profile because
+// A longer arm for three spools is also available:
+// Set
+// fdia=2.85
+// lightduty=false
+// storarm_spools=3
+// (or look in filamentspool-storarm3.scad).
+//
+// And print one of these, according to taste
+// StorageArmLeft
+// StorageArmRight
+//
+// For all of these, I used the Cura `High detail' PLA profile because
// I wanted it pretty, but the `Standard' profile should do fine.
//
// ===== Spools for 1.75mm filament =====
ratchettoothslope=0.75;
overlap=0.5;
cupwidth=selsz(40,25,50);
-cupheight=selsz(55,25,55);
+cupheight=selsz(75,35,75);
cupstrong_dx=selsz(0,0,-10);
// calculated
+storarm_spools = 2;
+
storarm_axlerad = hubaxlerad - storarm_axleslop;
-storarm_mainlen = hubaxlelen*2 + storarm_axleslop
+storarm_mainlen = hubaxlelen*storarm_spools
+ + storarm_axleslop*(storarm_spools-1)
+ (storarm_cope_hubaxle_mk1 ? 10 : 0);
storarm_totlen = storarm_mainlen + storarm_hooklen;
+storarm_taller = storarm_axleslop * (storarm_spools-2);
+
storarm_mid_off_y = storarm_axlerad;
storarm_base_off_y = storarm_mid_off_y + storarm_base_h/2;
}
}
-module StorageArmDiagPart(xmin, xmax, shear, adjbot){
+module StorageArmDiagPart(xmin, xmax, adjbot, shear){
hull(){
StorageArmDiagPartSide(xmin,xmax);
module StorageArmRight(){ ////toplevel
shear = storarm_hookheight / (storarm_mainlen/2);
+ shear2 = shear + storarm_taller / (storarm_mainlen/2);
+ base_xyz = [-storarm_base_d, -storarm_base_off_y, storarm_base_w];
- StorageArmDiagPart(-1, storarm_mainlen/2+1, shear, 0);
- StorageArmDiagPart(storarm_mainlen/2-1, storarm_mainlen+1, shear/2,
- storarm_hookheight/2);
+ StorageArmDiagPart(-1, storarm_mainlen/2+1,
+ -storarm_taller, shear2);
+ StorageArmDiagPart(storarm_mainlen/2-1, storarm_mainlen+1,
+ storarm_hookheight/2, shear/2);
translate([0, storarm_hookheight, 0])
StorageArmDiagPart(storarm_mainlen, storarm_totlen,
- shear/2, -storarm_hookheight/2);
+ -storarm_hookheight/2, shear/2);
difference(){
union(){
hull(){
- translate([-storarm_base_d, -storarm_base_off_y, storarm_base_w])
+ translate(base_xyz)
rotate([0,90,0])
linear_extrude(height=storarm_base_mind)
StorageArmBaseTemplate();
- StorageArmDiagPart(-1, 0, shear, 0);
+ StorageArmDiagPart(-1, 0, -storarm_taller, shear);
}
StorageArmAtMountingHoles(){
cylinder(r= storarm_screw_hole_head/2,
cylinder(r= (storarm_screw_hole_head + storarm_screw_hole_head_slop)/2,
h=20);
}
+ translate(base_xyz + [0, storarm_base_h/4, -storarm_base_w/4])
+ rotate([0,90,0])
+ Commitid_BestCount([storarm_base_w/2, storarm_base_h/2]);
}
}