Fastest way to select this face's edges for fillet?

[lf94]

I really don't know, I've tried edgeFinder.inDirection('Z').containsPoint([57.0 - 20, 89 / 2, 2.0])) but it kernel errors on me. Code:

/home/lee/Code/lee/ScreenDoorHandle/main.rcad:1.1,58.1
// All measurements are in millimeters.

const defaultParams = {
};

const main = ({ Sketcher, sketchRectangle, sketchCircle, Plane }, {}) => {
  const handleBase = new Sketcher("XY")
    .vLine(89.0)
    .hLine(20.5)
    .line( 57.0 - 20.5, -3.5)
    .vLine(-82.0)
    .line(-57.0 + 20.5, -3.5)
    .hLine(-20.5)
    .close()
    .extrude(9.0)
    .fillet(5.0, e => e.inDirection('Z').containsPoint([57, 3.5, 0]))
    .fillet(5.0, e => e.inDirection('Z').containsPoint([57, 89.0 - 3.5, 0]))
    .fillet(1.0, e => e.inBox([0,0,9], [20.5, 89.0, 0]));

  const border = 3.0;

  const fingerAreaNegative = new Sketcher("XY")
    .line( 57.0 - 20.5 - border, -3.5)
    .vLine(-82.0 + (border * 2))
    .line(-57.0 + 20.5 + border, -3.5)
    .close()
    .extrude(7.0)
    .fillet(5.0, edgeFilter => edgeFilter.inDirection('Z'));

  const lockNegative = sketchRectangle(25.0, 7.0)
    .extrude(20.0)
    .rotate(90, undefined, [1, 0, 0])
    .rotate(90, undefined, [0, 0, 1])
    .translate([0, 0, 3.5]);

  const lockSmallTabSpaceNegative = sketchRectangle(15.0, 5.0)
    .extrude(3.0)
    .rotate(90, undefined, [1, 0, 0])
    .rotate(90, undefined, [0, 0, 1])
    .translate([0, 0, 2.5]);

  const screwHole = sketchCircle(4.0, new Plane([0, 0, 0]))
    .loftWith([
      sketchCircle(1.5, new Plane([0, 0, -3.0])),
      sketchCircle(1.5, new Plane([0, 0, -9.0]))
    ])
    .translate([0.0, 0.0, 9.0]);

  const cutFingerArea = handleBase.cut(fingerAreaNegative.translate([20.5, 89 - border, 2.0]));
  const filletFingerArea = cutFingerArea // Here
  const cutLock = filletFingerArea.cut(lockNegative.translate([2.0, 89.0 / 2, 0]));
  const cutLockTab = cutLock.cut(lockSmallTabSpaceNegative.translate([57 - 3, 89.0 / 2, 0]));
  const cutScrewHoleTop = cutLockTab.cut(screwHole.clone().translate([10.0, 6.0, 0.0]));
  const cutScrewHoleBottom = cutScrewHoleTop.cut(screwHole.translate([10.0, 89.0 - 6.0, 0.0]));

  const handle = cutScrewHoleBottom;
  return [handle];
}

[sgenoud]

You can select using this:

  return {
    shape: handle,
    highlight: new EdgeFinder().inPlane("XY", 2.0),
  };

Note the trick of returning something with its highlight to show the edges selected. But this won't work for your use case (as it selects edges you don't want.

You may want to fillet the inner part:

  const fingerAreaNegative = new Sketcher("XY")
    .line(57.0 - 20.5 - border, -3.5)
    .vLine(-82.0 + border * 2)
    .line(-57.0 + 20.5 + border, -3.5)
    .close()
    .extrude(7.0)
    .fillet(5.0, (edgeFilter) => edgeFilter.inDirection("Z"))
    .fillet(1, (e) => e.inPlane("XY"));

and then modify your lockNegative.

And there are some helper functions for translations that make it nicer to read: translateZ...

[raydeleu]

Which edge did you try to be filleted? I filleted the inside of the fingergrip by filleting the cutting shape. At the location in your source where it says //Here I inserted a simple fillet with no selection at all. At the location [57.0 - 20, 89 / 2, 2.0]) I added a marker. There is no edge there?

[lf94]

That position is just the face I want to select, to select its edges...

I just want the edges of that face filleted 🙂 I think maybe I pasted code that is filleting everything, my bad!

[lf94]

I filleted the inside of the fingergrip by filleting the cutting shape

Oh ho, that's a clever one too, but wouldn't the shape have to be raised by the radius of the fillet so it continues to cut out the top properly? Regardless, nice trick!

[raydeleu]

You are correct that in your current code the cutout would have to be extruded over a larger distance, or you would have to go through the pain of selecting only the bottom face of the cutout to perform the filleting. In my example this error is corrected by applying a fillet afterwards to the top of the cutout.
Just as an idea: I would create cut-outs always larger/deeper than the original shape. This way you can avoid that faces of two shapes that are used in a boolean operation coincide. It is my experience that the calculation can fail on this, as it can depend on rounding errors whether a piece of geometry is still there or should be removed. In your case it makes no difference whether the "cutter" is 7mm thick (which is exactly the depth of the fingergrip or if it is 30 mm thick.

This is the code with my changes:

//home/lee/Code/lee/ScreenDoorHandle/main.rcad:1.1,58.1
// All measurements are in millimeters.

/** @typedef { typeof import("replicad") } replicadLib */
/** @type {function(replicadLib, typeof defaultParams): any} */

const defaultParams = {
};

const main = ({ Sketcher, sketchRectangle, sketchCircle, Plane, makeSphere,FaceFinder }, {}) => {
  const handleBase = new Sketcher("XY")
    .vLine(89.0)
    .hLine(20.5)
    .line( 57.0 - 20.5, -3.5)
    .vLine(-82.0)
    .line(-57.0 + 20.5, -3.5)
    .hLine(-20.5)
    .close()
    .extrude(9.0)
    .fillet(5.0, e => e.inDirection('Z').containsPoint([57, 3.5, 0]))
    .fillet(5.0, e => e.inDirection('Z').containsPoint([57, 89.0 - 3.5, 0]))
    .fillet(1.0, e => e.inBox([0,0,9], [20.5, 89.0, 0]))
   
  const border = 3.0;

  const fingerAreaNegative = new Sketcher("XY")
    .line( 57.0 - 20.5 - border, -3.5)
    .vLine(-82.0 + (border * 2))
    .line(-57.0 + 20.5 + border, -3.5)
    .close()
    .extrude(30.0)  // =RD= increased this to 30 mm as example
    .fillet(5.0, edgeFilter => edgeFilter.inDirection('Z'))
    .fillet(1.5);   // =RD= added a fillet here

  const lockNegative = sketchRectangle(25.0, 7.0)
    .extrude(20.0)
    .rotate(90, undefined, [1, 0, 0])
    .rotate(90, undefined, [0, 0, 1])
    .translate([0, 0, 3.5]);

  const lockSmallTabSpaceNegative = sketchRectangle(15.0, 5.0)
    .extrude(3.0)
    .rotate(90, undefined, [1, 0, 0])
    .rotate(90, undefined, [0, 0, 1])
    .translate([0, 0, 2.5]);

  const screwHole = sketchCircle(4.0, new Plane([0, 0, 0]))
    .loftWith([
      sketchCircle(1.5, new Plane([0, 0, -3.0])),
      sketchCircle(1.5, new Plane([0, 0, -9.0]))
    ])
    .translate([0.0, 0.0, 9.0]);

  const cutFingerArea = handleBase.cut(fingerAreaNegative.translate([20.5, 89 - border, 2.0]));
  // const filletFingerArea = cutFingerArea.fillet(0.8) // Here
  const filletFingerArea = cutFingerArea // Here
  const cutLock = filletFingerArea.cut(lockNegative.translate([2.0, 89.0 / 2, 0]));
  const cutLockTab = cutLock.cut(lockSmallTabSpaceNegative.translate([57 - 3, 89.0 / 2, 0]));
  const cutScrewHoleTop = cutLockTab.cut(screwHole.clone().translate([10.0, 6.0, 0.0]));
  const cutScrewHoleBottom = cutScrewHoleTop.cut(screwHole.translate([10.0, 89.0 - 6.0, 0.0]));
  
  const handle = cutScrewHoleBottom
 //  let marker = makeSphere(1).translate([57.0 - 20, 89 / 2, 2.0]);
 //  const handle = cutScrewHoleBottom.fuse(marker);
  return {shape: handle,  highlight: new FaceFinder().inPlane("XY", 9)};
}