//vxb rail support block //http://www.vxb.com/page/bearings/PROD/kit7136 include module support_block(){ D=16; h=27; E=24; W=48; L=16; F=44; G=6; P=25; B=38; S=5.5; locking_bolt=4; //M4 clamping_bolt=5; //M5 color(Aluminum) linear_extrude(height=L){ difference(){ union(){ translate([-W/2,0]) square([W,G]); translate([-P/2,0]) square([P,F]); } translate([0,h]) circle(r=D/2); } } } support_block();