6 houterrad = hinnerrad + hoopthick;
10 blockwidth = hcentredist*2 + 6;
14 ziglen = hcentredist/2;
25 module Oval(centredist, rad) {
27 translate([-centredist/2,0,0]) circle(r=rad);
28 translate([+centredist/2,0,0]) circle(r=rad);
35 Oval(hcentredist, houterrad);
36 translate([0, (blockdepth + hoopthick)/2 + hinnerrad])
38 blockdepth + hoopthick],
41 Oval(hcentredist, hinnerrad);
46 translate([0,0, -height/2])
47 linear_extrude(height=20)
52 imax = ceil(height*2 / ribheight);
53 for (i=[-imax:imax]) {
55 translate([-ribdepth/2,
59 [ribdepth, -ribheight],
60 [ribdepth, +ribheight]]);
62 square([1, height*2], center=true);
67 module Division(cutmore) {
69 translate([0, 0, -cutmore*feedzgap/2]) {
70 translate([-ziglen + -cutmore*feedxgap/2, -100, 0])
74 translate([blockwidth/2 - blockoverlapcnr, -50, -50])
75 cube([100, 100, 100]);
78 hinnerrad/2 + houterrad/2 + blockdepth/2 + -cutmore*ribsgap,
81 linear_extrude(height=100)