gridfinity-bins

// Gridfinity Bins
// 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

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

// Define parameters
binLength = 41.5
binHeight = 7.0
binBaseLength = 2.95
binTol = 0.25
binThk = 1.2
cornerRadius = 3.75
firstStep = 0.8
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
countBinHeight = 2

// 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([binBaseLength + binTol, 0], %)
    |> yLine(length = height)
    |> xLine(length = -binBaseLength)
    |> 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 + binTol)), 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 * binTol) / 2,
    (binLength + 2 * binTol) / 2,
    0
  ],
  instances = 4,
  rotateDuplicates = true,
)

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

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

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

singleBinFill = startSketchOn(XY)
  |> startProfileAt([
       binBaseLength + binTol,
       binBaseLength + binTol
     ], %)
  |> line(end = [binLength - (binBaseLength * 2), 0], tag = $line000)
  |> line(end = [0, binLength - (binBaseLength * 2)], tag = $line001)
  |> xLine(endAbsolute = profileStartX(%), tag = $line002)
  |> close(tag = $line003)
  |> extrude(length = height)
  |> fillet(
       radius = firstStep,
       tags = [
         getNextAdjacentEdge(line000),
         getPreviousAdjacentEdge(line000),
         getNextAdjacentEdge(line002),
         getPreviousAdjacentEdge(line002)
       ],
     )

magCutout000 = startSketchOn(singleBinFill, face = START)
  |> circle(
       center = [
         -magOffset - binBaseLength - binTol,
         magOffset + binBaseLength + binTol
       ],
       radius = magOuterDiam / 2,
     )
  |> patternCircular2d(
       arcDegrees = 360,
       center = [
         (-binLength + 2 * binTol) / 2,
         (binLength + 2 * binTol) / 2
       ],
       instances = 4,
       rotateDuplicates = true,
     )
  |> extrude(length = -magDepth)

// Create the baseplate by patterning sides
binSides = patternLinear3d(
       sides,
       axis = [1.0, 0.0, 0.0],
       instances = countBinWidth,
       distance = binLength + binTol * 2,
     )
  |> patternLinear3d(axis = [0.0, 1.0, 0.0], instances = countBinLength, distance = binLength + binTol * 2)

// Create the corners of the baseplate by patterning the corners
binCorners = patternLinear3d(
       corners,
       axis = [1.0, 0.0, 0.0],
       instances = countBinWidth,
       distance = binLength + binTol * 2,
     )
  |> patternLinear3d(axis = [0.0, 1.0, 0.0], instances = countBinLength, distance = binLength + binTol * 2)

// Create the fill of the bin by patterning the corners
binFill = patternLinear3d(
       singleBinFill,
       axis = [1.0, 0.0, 0.0],
       instances = countBinWidth,
       distance = binLength + binTol * 2,
     )
  |> patternLinear3d(axis = [0.0, 1.0, 0.0], instances = countBinLength, distance = binLength + binTol * 2)

// Create the top of the bin
binTop = startSketchOn(offsetPlane(XY, offset = height))
  |> startProfileAt([0, 0], %)
  |> xLine(length = (binLength + 2 * binTol) * countBinWidth, tag = $line010)
  |> yLine(length = (binLength + 2 * binTol) * countBinLength, tag = $line011)
  |> xLine(endAbsolute = profileStartX(%), tag = $line012)
  |> close(tag = $line013)
  |> extrude(length = binHeight * countBinHeight)
  |> fillet(
       radius = cornerRadius,
       tags = [
         getNextAdjacentEdge(line010),
         getPreviousAdjacentEdge(line010),
         getNextAdjacentEdge(line012),
         getPreviousAdjacentEdge(line012)
       ],
     )
  |> shell(faces = [END], thickness = binThk)