intersecting a hole with a negative extrude in a solid results in a solid instead of empty intersection

[yeroca]

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A hole that penetrates an object from one face intersecting with a negative extrude from another face, the volume of the intersection is solid rather than vacant.

In the object below, please notice the "slot" and cylindrical hole intersection. When I exported this model to STL, the result viewed in Orcaslicer was a solid slot inside the cylindrical hole rather than being empty.

Core Dump

coredump-2b4b4fdc-a710-434a-9731-fe673ec53df5.json

Reference ID: 2b4b4fdc-a710-434a-9731-fe673ec53df5

KCL Code

const holeFudge = 0.4
const frontBarD = 5.0
const yBarD = 6.7
const lowerBlockTransHoleD = frontBarD + holeFudge
const lowerBlockTransHoleR = lowerBlockTransHoleD / 2
const upperBlockLongHoleD = yBarD + holeFudge
const upperBlockLongHoleR = upperBlockLongHoleD / 2
const upperBlockTransHoleD = yBarD + holeFudge
const upperBlockTransHoleR = upperBlockTransHoleD / 2
const tubeClr = 1.5
const lowerBlockH = lowerBlockTransHoleD + 2 * tubeClr
const upperBlockH = upperBlockLongHoleD + 2 * tubeClr
const elevateH = 5
const upperBlockL = 25
const lowerBlockL = 60
const blockSz = max(upperBlockH, lowerBlockH)

const slotL = 10
const slotH = 1

fn slot = () => {
  const slotSketch = startSketchOn('XZ')
  |> startProfileAt([0, -(blockSz - slotH) / 2], %)
  |> xLine(slotL, %)
  |> yLine(-slotH, %)
  |> xLine(-slotL, %)
  |> close(%)
  return slotSketch
}
const sketch001 = startSketchOn('XZ')
  |> startProfileAt([0, 0], %)
  |> yLine(blockSz, %, $edgeA)
  |> xLine(blockSz, %, $edgeB)
  |> yLine(-blockSz, %, $edgeC)
  |> xLine(upperBlockL - blockSz, %, $edge1)
  |> yLine(-(elevateH + blockSz), %, $edge2)
  |> xLine(lowerBlockL - blockSz, %, $edge3)
  |> yLine(-blockSz, %, $edge4)
  |> xLine(-lowerBlockL, %, $edge5)
  |> yLine(blockSz + elevateH, %, $edge6)
  |> xLine(-(upperBlockL - blockSz), %, $edge7)
  |> lineTo([profileStartX(%), profileStartY(%)], %, $seg01)
  |> close(%)
  |> hole(slot(), %)
  |> hole(circle([blockSz / 2, blockSz / 2], upperBlockTransHoleR, %), %)
  |> hole(circle([
       upperBlockL + lowerBlockL - blockSz - (lowerBlockTransHoleR) - tubeClr,
       -(blockSz + elevateH + blockSz / 2)
     ], lowerBlockTransHoleR, %), %)
const rad = 3
const extrude001 = extrude(blockSz, sketch001)
  |> fillet({
       radius: rad,
       tags: [
         getNextAdjacentEdge(edgeA),
         getNextAdjacentEdge(edgeB),
         getNextAdjacentEdge(edgeC),
         getNextAdjacentEdge(edge2),
         getNextAdjacentEdge(edge3),
         getNextAdjacentEdge(edge4),
         getNextAdjacentEdge(edge5),
         getNextAdjacentEdge(edge6)
       ]
     }, %)

const sketch002 = startSketchOn(extrude001, seg01)
   |> startProfileAt([0, 0], %)
   |> circle([blockSz / 2, -blockSz / 2], upperBlockLongHoleR, %)
const extrude2 = extrude(-upperBlockL, sketch002)