gridfinity-baseplate-magnets

// Gridfinity Baseplate With Magnets
// Gridfinity is a system to help you work more efficiently. This is a system invented by Zack Freedman. There are two main components the baseplate and the bins. The components are comprised of a matrix of squares. Allowing easy stacking and expansion. This baseplate version includes holes for magnet placement

// Set units in millimeters (mm)
@settings(defaultLengthUnit = mm)

// Define parameters
binLength = 42.0
cornerRadius = 4.0
firstStep = 0.7
secondStep = 1.8
thirdStep = 2.15
magOuterDiam = 6.5
magOffset = 4.8
magDepth = 2.4

// Number of bins in each direction
countBinWidth = 2
countBinLength = 3

// The total height of the baseplate is a summation of the vertical heights of the baseplate steps
height = firstStep + secondStep + thirdStep

// Define a function which builds the profile of the baseplate bin
fn face(plane) {
  faceSketch = startSketchOn(plane)
    |> startProfileAt([0, 0], %)
    |> yLine(length = height)
    |> angledLine(angle = -45, lengthY = thirdStep)
    |> yLine(length = -secondStep)
    |> angledLine(angle = -45, lengthY = firstStep)
    |> close()
  return faceSketch
}

// Extrude a single side of the bin
singleSide = extrude(face(offsetPlane(YZ, offset = cornerRadius)), length = binLength - (cornerRadius * 2))

// Create the other sides of the bin by using a circular pattern
sides = patternCircular3d(
  singleSide,
  arcDegrees = 360,
  axis = [0, 0, 1],
  center = [binLength / 2, binLength / 2, 0],
  instances = 4,
  rotateDuplicates = true,
)

// Define an axis axis000
axis000 = {
  direction = [0.0, 1.0],
  origin = [cornerRadius, cornerRadius]
}

// Create a single corner of the bin
singleCorner = revolve(face(offsetPlane(YZ, offset = cornerRadius)), angle = -90, axis = axis000)

// Create the corners of the bin
corners = patternCircular3d(
  singleCorner,
  arcDegrees = 360,
  axis = [0, 0, 1],
  center = [binLength / 2, binLength / 2, 0],
  instances = 4,
  rotateDuplicates = true,
)

// Create the baseplate by patterning sides
basePlateSides = patternLinear3d(
       sides,
       axis = [1.0, 0.0, 0.0],
       instances = countBinWidth,
       distance = binLength,
     )
  |> patternLinear3d(axis = [0.0, 1.0, 0.0], instances = countBinLength, distance = binLength)

// Create the corners of the baseplate by patterning the corners
basePlateCorners = patternLinear3d(
       corners,
       axis = [1.0, 0.0, 0.0],
       instances = countBinWidth,
       distance = binLength,
     )
  |> patternLinear3d(axis = [0.0, 1.0, 0.0], instances = countBinLength, distance = binLength)

// Create the center cutout for the magnet profile
fn magnetCenterCutout(plane) {
  magnetSketch = startSketchOn(plane)
    |> startProfileAt([
         firstStep + thirdStep,
         2 * magOuterDiam
       ], %)
    |> xLine(length = 2 * magOuterDiam - (firstStep + thirdStep) - (magOuterDiam / 2))
    |> arc(angleStart = 90.0, angleEnd = 0.0, radius = magOuterDiam / 2)
    |> yLine(length = -(2 * magOuterDiam - (firstStep + thirdStep) - (magOuterDiam / 2)))
    |> xLine(length = binLength - (4 * magOuterDiam))
    |> yLine(length = 2 * magOuterDiam - (firstStep + thirdStep) - (magOuterDiam / 2))
    |> arc(angleStart = 180.0, angleEnd = 90.0, radius = magOuterDiam / 2)
    |> xLine(length = 2 * magOuterDiam - (firstStep + thirdStep) - (magOuterDiam / 2))
    |> yLine(length = binLength - (4 * magOuterDiam))
    |> xLine(length = -(2 * magOuterDiam - (firstStep + thirdStep) - (magOuterDiam / 2)))
    |> arc(angleStart = 270.0, angleEnd = 180.0, radius = magOuterDiam / 2)
    |> yLine(length = 2 * magOuterDiam - (firstStep + thirdStep) - (magOuterDiam / 2))
    |> xLine(length = -(binLength - (4 * magOuterDiam)), tag = $line012)
    |> yLine(length = -(2 * magOuterDiam - (firstStep + thirdStep) - (magOuterDiam / 2)))
    |> arc(angleStart = 360.0, angleEnd = 270.0, radius = magOuterDiam / 2)
    |> xLine(length = -(2 * magOuterDiam - (firstStep + thirdStep) - (magOuterDiam / 2)))
    |> yLine(length = -(binLength - (4 * magOuterDiam)))
    |> close()
  return magnetSketch
}

// Create the outside profile of the magnets
fn magnetBase(plane) {
  magnetBaseSketch = startSketchOn(plane)
    |> startProfileAt([0, 0], %)
    |> xLine(length = binLength, tag = $line001)
    |> yLine(length = binLength, tag = $line002)
    |> xLine(endAbsolute = profileStartX(%), tag = $line003)
    |> close(tag = $line004)
    |> hole(magnetCenterCutout(plane), %)
  return magnetBaseSketch
}

// Create sketch profile sketch000Profile002
magnetsSketch = startSketchOn(XY)
  |> circle(center = [cornerRadius * 2, cornerRadius * 2], radius = magOuterDiam / 2)
  |> patternCircular2d(
       center = [binLength / 2, binLength / 2],
       instances = 4,
       arcDegrees = 360,
       rotateDuplicates = true,
     )

// Create a profile with holes for the magnets
magnetProfile = magnetBase(XY)
  |> hole(magnetsSketch, %)

// Create an extrusion of the magnet cutout with holes
magnetHolesExtrude = extrude(magnetProfile, length = -magDepth)

// Add a fillet to the extrusion
magnetHolesExtrudeFillets = fillet(
  magnetHolesExtrude,
  radius = cornerRadius,
  tags = [
    getNextAdjacentEdge(magnetHolesExtrude.sketch.tags.line001),
    getPreviousAdjacentEdge(magnetHolesExtrude.sketch.tags.line001),
    getNextAdjacentEdge(magnetHolesExtrude.sketch.tags.line003),
    getPreviousAdjacentEdge(magnetHolesExtrude.sketch.tags.line003)
  ],
)

// Create a profile without the holes for the magnets
magnetProfileNoMagnets = magnetBase(offsetPlane(XY, offset = -magDepth))

// Create an extrusion of the magnet cutout without holes
magnetCutoutExtrude = extrude(magnetProfileNoMagnets, length = -magDepth)

// Add a fillet to the extrusion
magnetCutoutExtrudeFillets = fillet(
  magnetCutoutExtrude,
  radius = cornerRadius,
  tags = [
    getNextAdjacentEdge(magnetCutoutExtrude.sketch.tags.line001),
    getPreviousAdjacentEdge(magnetCutoutExtrude.sketch.tags.line001),
    getNextAdjacentEdge(magnetCutoutExtrude.sketch.tags.line003),
    getPreviousAdjacentEdge(magnetCutoutExtrude.sketch.tags.line003)
  ],
)

// Pattern the magnet cutouts with holes
patternLinear3d(
       magnetHolesExtrudeFillets,
       axis = [1.0, 0.0, 0.0],
       instances = countBinWidth,
       distance = binLength,
     )
  |> patternLinear3d(axis = [0.0, 1.0, 0.0], instances = countBinLength, distance = binLength)

// Pattern the magnet cutouts without holes
patternLinear3d(
       magnetCutoutExtrudeFillets,
       axis = [1.0, 0.0, 0.0],
       instances = countBinWidth,
       distance = binLength,
     )
  |> patternLinear3d(axis = [0.0, 1.0, 0.0], instances = countBinLength, distance = binLength)