module guide()
{
    guideWidth = 5;
    guideHeight= 9;
    guideDepth = 12;
    holeRadius = 0.75;
    guideSlope=7/12;
    difference()
    {
        union()
        {
            cube([guideDepth,guideWidth,guideHeight]);
            translate([guideDepth/2,guideWidth/2,1])
                cylinder(2.5,guideWidth*2,guideWidth*0.75);
            translate([guideDepth/2,guideWidth/2,-8])
                cylinder(9,guideWidth*2,guideWidth*2);
        }
        
        //the hole
        translate([-0.05,guideWidth/2,4.75])
        rotate([0,90,0])
            cylinder(guideDepth+0.1,holeRadius,holeRadius);
        
        //middle third removal
        translate([guideDepth/3,-0.05,0.05])
            cube([guideDepth/3,guideWidth+0.1,guideHeight+0.1]);
        //cone hole
        translate([-0.05,guideWidth/2,4.75])
        rotate([0,90,0])
            cylinder(guideDepth/5,holeRadius+1.55,holeRadius-.35);
        
        //cone hole
        translate([10,guideWidth/2,4.75])
        rotate([0,90,0])
            cylinder(guideDepth/5,holeRadius-.35,holeRadius+1.55);
  
    }
    translate([guideDepth/3,-0.05,1])
            cube([guideDepth/3,guideWidth+0.1,3]);
}