109 lines
2.7 KiB
OpenSCAD
109 lines
2.7 KiB
OpenSCAD
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// LM8UU bushing holder modified for its use in Cyclone PCB Factory
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// Modified to have only one center screw
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// Derived by Carlosgs from:
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// LM8UU bushing holder
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// http://www.thingiverse.com/thing:23041 by thantik
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// Inspired/derived from:
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//http://www.thingiverse.com/thing:14942
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//Which is derived from:
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// http://www.thingiverse.com/thing:14814
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//And is a drop-in replacement for:
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//http://www.thingiverse.com/thing:10287
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include <MCAD/materials.scad>
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include <MCAD/metric_fastners.scad>
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use <../libs/linear_bearing.scad>
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// screw/nut dimensions
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screw_dia = 4;
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nut_dia = 8.5;
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nut_height=2;
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// main body dimensions
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body_width = 20;
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gap_width = 14;
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body_height = 16;
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body_length=23;
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LM8UU_dia = 15.0;
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screw_elevation = body_height-1.5;
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//mounting plate dimensions
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plate_height = 4;
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plate_length=body_length;
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plate_width=body_width+11;
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screw_space_x = -14.5*2;
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screw_space_y = 0;
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module mount_plate()
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{
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difference()
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{
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//bottom plate
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translate([-plate_width+body_width/2,-plate_length/2,-3])
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cube([plate_width,plate_length,plate_height]);
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//screw holes
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translate([screw_space_x/2,screw_space_y/2,-8.1])
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cylinder(r=screw_dia/2, h=plate_height+10, $fn=20);
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// translate([-screw_space_x/2,-screw_space_y/2,-8.1])
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// cylinder(r=screw_dia/2, h=plate_height+1, $fn=20);
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//nut traps
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}
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}
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module lm8uu_bearing_holder(with_extra_parts=false, exploded=false) {
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intersection() {
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rotate([90,0,90])
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difference()
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{
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union()
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{
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mount_plate();
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translate([-body_width/2,-body_length/2,0])
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cube([body_width,body_length,body_height]);
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}
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// bushing hole
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translate([0,0,LM8UU_dia/2+2])
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rotate([90,0,0])
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cylinder(r=LM8UU_dia/2, h=body_length+0.1, center=true, $fn=40);
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// top gap
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translate([0,0,20])
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cube([gap_width-1,body_length+0.1,20],center=true);
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}
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rotate([90,45,90])
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//cube([plate_width+3,plate_width+3,100],center=true);
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cylinder(r=(plate_width+10)/2,h=100,center=true,$fn=8);
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}
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if(with_extra_parts)
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lm8uu_bearing_holder_extras(exploded_distance=(exploded?1.3*linearBearing_L("LM8UU"):0));
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module lm8uu_bearing_holder_extras(exploded_distance=0) {
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echo("Non-Plastic Parts, 1, Linear Bearing LM8UU for lm8uu_bearing_holder");
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rotate([90,0,90]) translate([0,0,LM8UU_dia/2+2]) rotate([90,0,0])
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translate([0,0,exploded_distance])
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linearBearing(pos=[0,0,-linearBearing_L("LM8UU")/2], model="LM8UU");
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screw_size = 3.5;
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screw_length = 13;
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echo("Non-Plastic Parts, 1, Self Tapping Screw 3.5 x 13 mm to attach lm8uu_bearing_holder on work bed");
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translate([plate_height-3+0.2+0.5*exploded_distance,screw_space_x/2,0]) rotate([0,-90,0])
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color(Steel) csk_bolt(screw_size, screw_length);
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}
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}
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lm8uu_bearing_holder();
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