The laser pistol was actually remarkably easy to build. The circuits for it are trivially easy. There are 4 blocks of laser diodes (6 lasers each) and I've got 4 pre-made 1A circuits for each of them running off a 4AH, 24V lithium battery pack (in blue).
There is single switch to turn them all on which is on a 1' wire. There's also switches for each of the sets of lasers for testing purposes which I mounted on the body.
The battery pack itself is actually two 12V batteries so there's a switch to flip the charger between them.
The frame itself is just two pieces of perforated steel L-bar. There's a single bolt in the back to hold them together. This provides the mounting for the main on-off switch as well as the laser and all the other parts.
I had to make some pretty funky parts to mount the laser block and here again the 3D printer proves it's value.
boltNutWidth = 14;//12.5;
boltHexWidth = 7.8; //tan(pi/6)*boltNutWidth
topSecHeight = 12;
topCutDepth = 100;//(topSecHeight-3)*2;
bottomHeight = 3;
boltRad = 5.1;
boltDistance = 15;
boltToFront = 16;
boltToSide = 40;
topBoltToFront = 18;
topBoltToSide = 20;
totalHeight = 23;
ftHeight = 6;
ftLen = 65;
ftWidth = 15;
wt = 3;
module laserTop()
{
difference()
{
union() //Added parts
{
translate( [ (ftLen+boltRad+wt)/2-boltRad-wt, (ftWidth+boltRad+wt)/2-boltRad-wt , wt/2 ])
cube(size=[ftLen+boltRad+wt,ftWidth+boltRad+wt, wt],center=true);
translate( [ (boltToFront-1+boltRad+wt)/2-boltRad-wt, (boltToSide+boltRad+wt)/2-boltRad-wt ,(wt-3)/2 ])
cube(size=[boltToFront-1+boltRad+wt, boltToSide+boltRad+wt, wt+3],center=true);
translate( [ (topBoltToFront-3+boltRad+wt)/2-boltRad-wt, (topBoltToSide+boltRad+wt)/2-boltRad-wt ,-topSecHeight/2 ])
cube(size=[topBoltToFront-3+boltRad+wt, topBoltToSide+boltRad+wt,topSecHeight],center=true);
}
union() //Removed parts
{
//special notch
translate( [20,13,0])
cube(size=[5,5,100],center=true);
cylinder(h=100, r=boltRad,center=true);
union()
{
rotate([0,0,0])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
rotate([0,0,60])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
rotate([0,0,120])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
}
translate([0,boltDistance,0])
{
cylinder(h=100, r=boltRad,center=true);
union()
{
rotate([0,0,0])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
rotate([0,0,60])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
rotate([0,0,120])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
}
}
}
}
}
module circuitHolder()
{
difference()
{
union() //Added parts
{
translate( [ (ftLen+boltRad+wt)/2-boltRad-wt, (ftWidth+boltRad+wt)/2-boltRad-wt , ftHeight/2 ])
cube(size=[ftLen+boltRad+wt,ftWidth+boltRad+wt, ftHeight],center=true);
translate( [ (boltToFront+boltRad+wt)/2-boltRad-wt, (boltToSide+boltRad+wt)/2-boltRad-wt ,bottomHeight/2 ])
cube(size=[boltToFront+boltRad+wt, boltToSide+boltRad+wt,bottomHeight],center=true);
translate( [ (topBoltToFront+boltRad+wt)/2-boltRad-wt, (topBoltToSide+boltRad+wt)/2-boltRad-wt ,totalHeight/2 ])
cube(size=[topBoltToFront+boltRad+wt, topBoltToSide+boltRad+wt,totalHeight],center=true);
}
union() //Removed parts
{
cylinder(h=100, r=boltRad,center=true);
translate([0,boltDistance,0])
cylinder(h=100, r=boltRad,center=true);
}
}
}
rotate([180,0,0])
laserTop();
//circuitHolder();
//translate([0,0,-10])
//cube(size=[30,30,20], center=true);
boltNutWidth = 14;//12.5;
boltHexWidth = 7.8; //tan(pi/6)*boltNutWidth
topSecHeight = 12;
topCutDepth = 100;//(topSecHeight-3)*2;
bottomHeight = 3;
boltRad = 5.1;
boltDistance = 15;
topBoltToFront = 10;
topBoltToSide = 25;
totalHeight = 23;
ftHeight = 6;
ftLen = 45;
ftWidth = 15;
wt = 3;
module laserTop()
{
difference()
{
union() //Added parts
{
translate( [ (ftLen+boltRad+wt)/2-boltRad-wt, (ftWidth+boltRad+wt)/2-boltRad-wt , wt/2 ])
cube(size=[ftLen+boltRad+wt,ftWidth+boltRad+wt, wt],center=true);
translate( [ (boltToFront-1+boltRad+wt)/2-boltRad-wt, (boltToSide+boltRad+wt)/2-boltRad-wt ,(wt-3)/2 ])
cube(size=[boltToFront-1+boltRad+wt, boltToSide+boltRad+wt, wt+3],center=true);
translate( [ (topBoltToFront-3+boltRad+wt)/2-boltRad-wt, (topBoltToSide+boltRad+wt)/2-boltRad-wt ,-topSecHeight/2 ])
cube(size=[topBoltToFront-3+boltRad+wt, topBoltToSide+boltRad+wt,topSecHeight],center=true);
}
union() //Removed parts
{
//special notch
translate( [20,13,0])
cube(size=[5,5,100],center=true);
cylinder(h=100, r=boltRad,center=true);
union()
{
rotate([0,0,0])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
rotate([0,0,60])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
rotate([0,0,120])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
}
translate([0,boltDistance,0])
{
cylinder(h=100, r=boltRad,center=true);
union()
{
rotate([0,0,0])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
rotate([0,0,60])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
rotate([0,0,120])
cube([boltHexWidth,boltNutWidth,topCutDepth],center=true);
}
}
}
}
}
//rotate([180,0,0])
//laserTop();
circuitHolder();
//translate([0,0,-10])
//cube(size=[30,30,20], center=true);
