User:James

I'm working on getting the Cheap Chinese Laser working again. I like designing utilitarian objects. My motivation to fix the laser is so I can make a holder for my pens at work. Aside from hacking together useful things via CNC machines, I like hacking in the kitchen and am known for my award winning experimental pies. Who needs raspberry when you could have custard instead? I'm a temporary resident of Hyattsville, so if you need a lift in that direction, hit me up. BTW, ladies, he's single.

//HacDC logo key fob //created by James Sullivan //2-10-17 //Openscad version 2015.03-1 //dimensions in millimeters phi = 1/2+sqrt(5/4); //x:y=y:x+y thick=2.5; //thickness of base and key ring loop hole=5; //inner diameter of key ring loop: outer diameter is twice this, wall thickness is half this high=1; //height of logo and text above base width=25; //width of tag, height is proportional $fn=60; color("blue"){ //base translate([0,width*(1-phi),-thick]) scale([1,phi,thick/width]) cube(width,center=false); //key ring loop difference(){ translate([width/2,width+hole/2,-thick]) cylinder(h=thick,d=2*hole); translate([width/2,width+hole/2,-thick*1.5]) cylinder(h=2*thick,d=hole); } } //HacDC logo translate([0,0,high]) scale([width/966,width/966,(high+thick)/100]) surface(file="C:\\Users\\p007383b\\Documents\\Personal\\OpenSCAD\\HacDC-logo2.png", convexivity=14,center=false, invert=true); //HAC letters //translate([width/2,-width/4/phi,high/2]) linear_extrude(height=high,center=true) text("HAC",font="helvetica",size=width/phi/2,halign="center",valign="center"); //DC letters //translate([width/2,-width*3/4/phi,high/2]) linear_extrude(height=high,center=true) scale([phi,1,1]) text("DC",font="helvetica",size=width/phi/2,halign="center",valign="center"); module D(r){ scale([1/r,1/r,1]) linear_extrude(height=1,center=true) union(){ polygon([[-r/2,-r/2],[0,-r/2],[0,1-r/2],[1-r/2,1-r/2],[1-r/2,r/2-1],[0,r/2-1],[0,r/2],[-r/2,r/2]]); difference(){ circle(d=r,center=true); circle(d=r-2,center=true);translate([-r,0,0])square(r*2,center=true); } } } module C(r){ scale([1/r,1/r,1]) linear_extrude(height=1,center=true) difference(){ circle(d=r,center=true); circle(d=r-2,center=true); translate([r/4,0,0])square(r/2,center=true); } } module H(r){ scale([1/r,1/r,1]) linear_extrude(height=1,center=true) polygon([[-r/2,-r/2],[1-r/2,-r/2],[1-r/2,-1/2],[r/2-1,-1/2],[r/2-1,-r/2],[r/2,-r/2],[r/2,r/2],[r/2-1,r/2],[r/2-1,1/2],[1-r/2,1/2],[1-r/2,r/2],[-r/2,r/2]]); } module A(r){ scale([1/r,1/r,1]) linear_extrude(height=1,center=true) polygon([[-r/2,-r/2],[1-r/2,-r/2],[1-r/2+(r-2)*(r-1)/4/r,-1],[1-r/2+(r-0)*(r-1)/4/r,0],[0,(r/2-1)/(r-1)*2*r-r/2],[-1+r/2-(r-0)*(r-1)/4/r,0],[1-r/2+(r-0)*(r-1)/4/r,0],[1-r/2+(r-2)*(r-1)/4/r,-1],[-1+r/2-(r-2)*(r-1)/4/r,-1],[r/2-1,-r/2],[r/2,-r/2],[1/2,r/2],[-1/2,r/2]]); } translate([width/6+.2,-width/phi/4,high/2-thick/2]) scale([width/3*0.9,width/2/phi*0.9,high+thick]) H(7); translate([width/2,-width/phi/4,high/2-thick/2]) scale([width/3*0.9,width/2/phi*0.9,high+thick]) A(7); translate([width*5/6-.2,-width/phi/4,high/2-thick/2]) scale([width/3*0.9,width/2/phi*0.9,high+thick]) C(7); translate([width/4,-width/phi*3/4,high/2-thick/2]) scale([width/2*0.9,width/2/phi*0.9,high+thick]) D(7); translate([width*3/4,-width/phi*3/4,high/2-thick/2]) scale([width/2*0.9,width/2/phi*0.9,high+thick]) C(7);

STL file of key fob is available as a zip file here: File:HacDC-tag.zip. Dimensions in millimeters: 25 wide, 40 tall, 2.5 thick. The above code causes Openscad to hang, so the STL was created using the surface command and a single full length image. Image could use some tweeking at the pixel level.