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authorMichael Krelin <hacker@klever.net>2016-07-15 21:52:56 (UTC)
committer Michael Krelin <hacker@klever.net>2016-07-15 21:52:56 (UTC)
commita81ecf3156452706c5f39d2d5d8edf3970a9ccb7 (patch) (side-by-side diff)
tree897a3dcb482928b87fead8c3904bb081f393f082
parentd67ab62d587d8108c93a7cbd1dcc9c0af1381076 (diff)
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let ties tie tighter
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--x-carriage.scad7
1 files changed, 5 insertions, 2 deletions
diff --git a/x-carriage.scad b/x-carriage.scad
index 47ba499..3c2ee2f 100644
--- a/x-carriage.scad
+++ b/x-carriage.scad
@@ -49,33 +49,36 @@ module belt(pitch=belt_pitch,width=belt_width,thickness=belt_thickness,tooth=bel
module xcarriage() {
cw = bearings_l+2*bearings_m; // carriage width
% for(mz=[0,1]) mirror([0,0,mz]) translate([0,0,-belts_apart/2]) belt(l=cw+2);
difference() {
translate([-cw/2,-belt_width/2,-(rods_apart+bearings_d+bearings_m)/2])
cube(size=[cw,bearings_d/2+bearings_s+belt_width/2,rods_apart+bearings_d+bearings_m]);
for(sz=[-1,1]) translate([0,0,sz*rods_apart/2]) {
rotate([0,90,0])
cylinder(d=bearings_d,h=bearings_l,center=true,$fn=60);
translate([0,-bearings_d/2,0])
cube(size=[bearings_l,bearings_d,bearings_d],center=true);
- for(sx=[-1,1]) translate([sx*bearings_l/4,0,0])
rotate([0,90,0]) cylinder(d=bearings_d-bearings_m,h=cw+2,center=true,$fn=60);
translate([-cw/2-1,-belt_width,-(bearings_d-bearings_m)/2])
cube(size=[cw+2,belt_width,bearings_d-bearings_m]);
+ for(sx=[-1,1]) translate([sx*bearings_l/4,0,0]) {
rotate([0,90,0]) difference() {
cylinder(d=tiehole_od,h=tiehole_w,center=true,$fn=60);
cylinder(d=tiehole_id,h=tiehole_w+2,center=true,$fn=60);
}
- }
+ translate([0,-tiehole_od/2,0])
+ cube(size=[tiehole_w,tiehole_od,tiehole_od],center=true);
+ } // translate for(sx)
+ } // for(sz)
difference() {
gap=belts_apart/6;
translate([0,-.5,-gap/2])
cube(size=[cw+2,belt_width+2,belts_apart+2*belt_thickness+gap],center=true);
for(mx=[0,1]) mirror([mx,0,0]) {
ofc = mounting_holes_apart/2+screwhead_d/2+belt_thickness+belt_tooth+play_tolerance; // offset from center
r=1;
x0 = ofc+r; x1=cw/2-r;
z0 = r; z1 = belts_apart/2-belt_thickness;
difference() {
hull() for(x=[x0,x1]) for(z=[z0,z1])