OpenSCAD source code: CNC 3018-Pro Probe Camera mount for Logitech QC Pro 5000

## 3018 Probe Camera Mount - QC Pro 5000.scad
// Probe Camera Mount for CNC 3018-Pro Z Axis
// Ed Nisley - KE4ZNU - 2019-08

Layout = "Block";             // [Show,Build,Block]

Support = false;

/* [Hidden] */

ThreadThick = 0.20;
ThreadWidth = 0.40;

HoleWindage = 0.2;

Protrusion = 0.1;			// make holes end cleanly

function IntegerMultiple(Size,Unit) = Unit * ceil(Size / Unit);

ID = 0;
OD = 1;
LENGTH = 2;

inch = 25.4;

//----------------------
// Dimensions

PCB = [45.0,38.0,1.5];          // Logitech QuickCam Pro 5000 ball camera

PCBLip = 1.0;                               // max non-component border
PCBChamfer = 3.0;                           // cut along XY axes for corner bevel

PCBClearTop = 15.0;                         // cables & connectors
PCBClearSides = [0.5,0.5];                  // irregular edges & comfort zone
PCBClearBelow = 5.0;                        // lens support bracket rests on floor

Lens = [11.5,14.2,3.0];                     // LENGTH = beyond PCBClearBelow bracket
LensOffset = [-1.5,0.0,0];                  // distance from center of board

CableOD = 4.5;

BaseThick = Lens[LENGTH];

Screw = [
3.0,6.8,18.0                                  // M3 OD=washer, LENGTH=below head
];

RoundRadius = IntegerMultiple(Screw[OD]/2,1.0);             // corner rounding

ScrewOC = [PCB.x + 2*sqrt(Screw[OD]),PCB.y + 2*sqrt(Screw[OD])];
echo(str("Screw OC: ",ScrewOC));

Lid = [ScrewOC.x,ScrewOC.y,1.0/16.0 * inch];                 // top cover plate
echo(str("Lid: ",Lid));

BlockSize = [ScrewOC.x + 2*RoundRadius,ScrewOC.y + 2*RoundRadius,
             BaseThick + PCBClearBelow + PCB.z + PCBClearTop + Lid.z];
echo(str("Block: ",BlockSize));

NumSides = 2*3*4;

//----------------------
// Useful routines

module PolyCyl(Dia,Height,ForceSides=0) {			// based on nophead's polyholes

  Sides = (ForceSides != 0) ? ForceSides : (ceil(Dia) + 2);
  FixDia = Dia / cos(180/Sides);
  cylinder(r=(FixDia + HoleWindage)/2,
           h=Height,
	   $fn=Sides);
}

// Basic shapes

// Overall block

module Block() {

  difference() {
    hull()
      for (i=[-1,1], j=[-1,1])
        translate([i*ScrewOC.x/2,j*ScrewOC.y/2,0])
          cylinder(r=RoundRadius,h=BlockSize.z,$fn=NumSides);

    for (i=[-1,1], j=[-1,1])                                      // corner screws
      translate([i*ScrewOC.x/2,j*ScrewOC.y/2,BlockSize.z - Screw[LENGTH]])
        cylinder(d=Screw[ID],h=2*Screw[LENGTH],$fn=8);            //  cylinder = undersized

    translate(LensOffset + [0,0,-Protrusion])                     // lens body
      PolyCyl(Lens[OD],2*BlockSize.z,NumSides);

    translate([0,0,BlockSize.z/2 + BaseThick])                    // PCB lip on bottom
      cube([PCB.x - 2*PCBLip,PCB.y,BlockSize.z],center=true);

    translate([0,0,BlockSize.z/2 + BaseThick + PCBClearBelow])    // PCB clearance
      cube([PCB.x + 2*PCBClearSides.x,PCB.y + 2*PCBClearSides.y,BlockSize.z],center=true);

    translate([0,0,BlockSize.z - Lid.z/2])                        // lid recess
      cube(Lid + [0,0,Protrusion],center=true);

    translate([0,Lid.y/2 - CableOD/2,BaseThick + PCBClearBelow + PCB.z])      // cable exit
      hull()
        for (j=[-1,1])
          translate([0,j*CableOD/4,0])
            rotate(180/8)
              PolyCyl(CableOD,BlockSize.z,8);
  }

}


//- Build it

if (Layout == "Block")
  Block();

if (Layout == "Show") {
  Block();

}

if (Layout == "Build") {
  Block();
  }