Stand for a Feelworld FW760 7 inch Field Monitor

// Field monitor stand
// Stand for a Feelworld FW760 7 inch Field Monitor
// Categories: Computer Hardware

// Set units
@settings(defaultLengthUnit = mm)

// Define parameters
plateLength = 121
plateLengthBase = 60
width = 3
plateWidth = 62 + 4
holeRadius = 4 / 2
holeDistanceY = 52.1 + 2 * holeRadius
holeDistanceX = 75.2 + 2 * holeRadius
plateHoleDistanceY1 = plateWidth / 2 + holeDistanceY / 2
plateHoleDistanceY2 = plateWidth / 2 - (holeDistanceY / 2)
plateHoleDistanceX1 = plateLength - 21
plateHoleDistanceX2 = plateLength - 21 - holeDistanceX
plateAngle = 110deg
filletRadius = 5
holeCutDepth = 10
holeCols = 2
holeRows = 2
plateHoleAxis = [
  0mm,
  cos(plateAngle) * 1mm,
  sin(plateAngle) * 1mm
]
plateWidthAxis = [1mm, 0mm, 0mm]

gussetLength = 15
gussetWidth = 2
plateInnerBaseX = width * (cos(plateAngle) - 1) / sin(plateAngle)
gussetRise = -gussetLength * tan(plateAngle)

// Model the base extrusion of the part
bodyProfile = sketch(on = YZ) {
  line1 = line(start = [var -60mm, var 0mm], end = [var 0mm, var 0mm])
  line2 = line(start = [var 0mm, var 0mm], end = [var -41.38mm, var 113.7mm])
  coincident([line1.end, line2.start])
  line3 = line(start = [var -41.38mm, var 113.7mm], end = [var -44.2mm, var 112.68mm])
  coincident([line2.end, line3.start])
  line4 = line(start = [var -44.2mm, var 112.68mm], end = [var -4.28mm, var 3mm])
  coincident([line3.end, line4.start])
  line5 = line(start = [var -4.28mm, var 3mm], end = [var -60mm, var 3mm])
  coincident([line4.end, line5.start])
  line6 = line(start = [var -60mm, var 3mm], end = [var -60mm, var 0mm])
  coincident([line5.end, line6.start])
  coincident([line6.end, line1.start])

  coincident([line1.end, ORIGIN])
  horizontal(line1)
  horizontal(line5)
  vertical(line6)
  parallel([line2, line4])
  perpendicular([line2, line3])

  distance([line1.start, line1.end]) == plateLengthBase
  distance([line2.start, line2.end]) == plateLength
  distance([line3.start, line3.end]) == width
  distance([line6.start, line6.end]) == width
  angle([line1, line2]) == plateAngle
}

bodyRegion = region(segments = [bodyProfile.line1, bodyProfile.line2])
// Extrude the body of the mount to desired width
body = extrude(
  bodyRegion,
  length = plateWidth,
  tagStart = $capStart001,
  tagEnd = $capEnd001,
)
hide([bodyProfile])

// Model a supporting gusset on the interior
gussetProfile = sketch(on = YZ) {
  line1 = line(start = [var -4.28mm, var 3mm], end = [var -19.28mm, var 3mm])
  line2 = line(start = [var -19.28mm, var 3mm], end = [var -19.28mm, var 44.21mm])
  coincident([line1.end, line2.start])
  line3 = line(start = [var -19.28mm, var 44.21mm], end = [var -4.28mm, var 3mm])
  coincident([line2.end, line3.start])
  coincident([line3.end, line1.start])

  horizontal(line1)
  vertical(line2)

  horizontalDistance([line1.start, ORIGIN]) == -plateInnerBaseX
  verticalDistance([ORIGIN, line1.start]) == width
  distance([line1.start, line1.end]) == gussetLength
  distance([line2.start, line2.end]) == gussetRise
}

gussetRegion = region(segments = [
  gussetProfile.line1,
  gussetProfile.line2
])
// Extrude the gusset to desired thickness
gusset = extrude(gussetRegion, length = gussetWidth)
hide([gussetProfile])

plateOuterPlane = {
  origin = { x = 0mm, y = 0mm, z = 0mm },
  xAxis = {
    x = 0,
    y = cos(plateAngle),
    z = sin(plateAngle)
  },
  yAxis = { x = 1, y = 0, z = 0 }
}

// Model the mounting holes
holeProfile = sketch(on = plateOuterPlane) {
  hole = circle(start = [var 22.8mm, var 4.95mm], center = [var 20.8mm, var 4.95mm])

  horizontalDistance([ORIGIN, hole.center]) == plateHoleDistanceX2
  verticalDistance([ORIGIN, hole.center]) == plateHoleDistanceY2
  horizontalDistance([hole.center, hole.start]) == holeRadius
  verticalDistance([hole.center, hole.start]) == 0mm
}

// Extrude all holes, then subtract
holeRegion = region(segments = [holeProfile.hole])
holeCutter = extrude(holeRegion, length = -holeCutDepth)
hide([holeProfile])

// Place a hole at each position
holeCutterRow = patternLinear3d(
  holeCutter,
  instances = holeCols,
  distance = holeDistanceX,
  axis = plateHoleAxis,
)

holeCutters = patternLinear3d(
  holeCutterRow,
  instances = holeRows,
  distance = holeDistanceY,
  axis = plateWidthAxis,
)

bodyCut = subtract(body, tools = holeCutters, legacyMethod = true)

// Fillet the exterior edges
bodyFinal = fillet(
  bodyCut,
  tags = [
    getCommonEdge(faces = [bodyRegion.tags.line4, capStart001]),
    getCommonEdge(faces = [bodyRegion.tags.line4, capEnd001]),
    getCommonEdge(faces = [bodyRegion.tags.line2, capStart001]),
    getCommonEdge(faces = [bodyRegion.tags.line2, capEnd001])
  ],
  radius = filletRadius,
)


Field monitor stand

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