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a-parametric-bearing-pillow-block.kcl
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a-parametric-bearing-pillow-block.kcl
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// A Parametric Bearing Pillow Block
// A bearing pillow block, also known as a plummer block or pillow block bearing, is a pedestal used to provide support for a rotating shaft with the help of compatible bearings and various accessories. Housing a bearing, the pillow block provides a secure and stable foundation that allows the shaft to rotate smoothly within its machinery setup. These components are essential in a wide range of mechanical systems and machinery, playing a key role in reducing friction and supporting radial and axial loads.
// Define constants such as length, width, height, counter-bore depth and diameter, bearing diameter, hole location padding, and more
const length = 6
const width = 4
const height = 1
const cbDepth = .25
const cbDia = .7
const holeDia = .375
const padding = 1.5
const bearingDia = 3
// (Needs to be updated). Sketch the block and extrude up to where the counterbore diameter starts.
const block = startSketchOn('XY')
|> startProfileAt([-width / 2, -length / 2], %)
|> lineTo([width / 2, -length / 2], %)
|> lineTo([width / 2, length / 2], %)
|> lineTo([-width / 2, length / 2], %)
|> close(%)
|> hole(circle([
-(width / 2 - (padding / 2)),
-(length / 2 - (padding / 2))
], holeDia / 2, %), %)
|> hole(circle([
-(width / 2 - (padding / 2)),
length / 2 - (padding / 2)
], holeDia / 2, %), %)
|> hole(circle([
width / 2 - (padding / 2),
length / 2 - (padding / 2)
], holeDia / 2, %), %)
|> hole(circle([
width / 2 - (padding / 2),
-(length / 2 - (padding / 2))
], holeDia / 2, %), %)
|> hole(circle([0, 0], bearingDia / 2, %), %)
|> extrude(height - cbDepth, %)
// Create a second sketch that creates the counterbore diameters and extrude the rest of the way to get the total height. Note: You cannot use startSketchOn(block, 'end'). The extrude lives outside the bounds, and the engine will not execute. This is a known issue.
const secondHalf = startSketchOn({
plane: {
origin: { x: 0, y: 0, z: height-cbDepth },
xAxis: { x: 1, y: 0, z: 0 },
yAxis: { x: 0, y: 1, z: 0 },
zAxis: { x: 0, y: 0, z: 1 },
}
})
|> startProfileAt([-width / 2, -length / 2], %)
|> lineTo([width / 2, -length / 2], %)
|> lineTo([width / 2, length / 2], %)
|> lineTo([-width / 2, length / 2], %)
|> close(%)
|> hole(circle([
-(width / 2 - (padding / 2)),
-(length / 2 - (padding / 2))
], cbDia / 2, %), %)
|> hole(circle([
-(width / 2 - (padding / 2)),
length / 2 - (padding / 2)
], cbDia / 2, %), %)
|> hole(circle([
width / 2 - (padding / 2),
length / 2 - (padding / 2)
], cbDia / 2, %), %)
|> hole(circle([
width / 2 - (padding / 2),
-(length / 2 - (padding / 2))
], cbDia / 2, %), %)
|> hole(circle([0, 0], bearingDia / 2, %), %)
|> extrude(cbDepth, %)