26fba71abf
* initial port Signed-off-by: Jess Frazelle <github@jessfraz.com> * updates Signed-off-by: Jess Frazelle <github@jessfraz.com> * more fixes Signed-off-by: Jess Frazelle <github@jessfraz.com> * fix e2e Signed-off-by: Jess Frazelle <github@jessfraz.com> * more fixes Signed-off-by: Jess Frazelle <github@jessfraz.com> * updates Signed-off-by: Jess Frazelle <github@jessfraz.com> * update js side Signed-off-by: Jess Frazelle <github@jessfraz.com> * updates Signed-off-by: Jess Frazelle <github@jessfraz.com> * fixes Signed-off-by: Jess Frazelle <github@jessfraz.com> * fix; Signed-off-by: Jess Frazelle <github@jessfraz.com> * cleanup Signed-off-by: Jess Frazelle <github@jessfraz.com> * updates Signed-off-by: Jess Frazelle <github@jessfraz.com> --------- Signed-off-by: Jess Frazelle <github@jessfraz.com>
112 lines
3.0 KiB
Plaintext
112 lines
3.0 KiB
Plaintext
// Ball Bearing
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// A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races. The primary purpose of a ball bearing is to reduce rotational friction and support radial and axial loads.
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// Set units
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@settings(defaultLengthUnit = in)
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// Define constants like ball diameter, inside diamter, overhange length, and thickness
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outsideDiameter = 1.625
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sphereDia = 0.25
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shaftDia = 0.75
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overallThickness = 0.313
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wallThickness = 0.100
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overHangLength = .3
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nBalls = 10
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chainWidth = sphereDia / 2
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chainThickness = sphereDia / 8
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linkDiameter = sphereDia / 4
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// Sketch the inside bearing piece
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insideWallSketch = startSketchOn(offsetPlane("XY", offset = -overallThickness / 2))
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|> circle(
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center = [0, 0],
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radius = shaftDia / 2 + wallThickness
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)
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|> hole(circle(
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center = [0, 0],
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radius = shaftDia / 2
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), %)
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// Extrude the inside bearing piece
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insideWall = extrude(insideWallSketch, length = overallThickness)
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// Create the sketch of one of the balls
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ballsSketch = startSketchOn("XY")
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|> startProfileAt([shaftDia / 2 + wallThickness, 0.001], %)
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|> arc({
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angleEnd = 0,
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angleStart = 180,
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radius = sphereDia / 2
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}, %)
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|> close()
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// Revolve the ball to make a sphere and pattern around the inside wall
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balls = revolve(ballsSketch, axis = "X")
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|> patternCircular3d(
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arcDegrees = 360,
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axis = [0, 0, 1],
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center = [0, 0, 0],
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instances = nBalls,
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rotateDuplicates = true
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)
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// Create the sketch for the chain around the balls
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chainSketch = startSketchOn("XY")
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|> startProfileAt([
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shaftDia / 2 + wallThickness + sphereDia / 2 - (chainWidth / 2),
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0.125 * sin(toRadians(60))
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], %)
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|> arc({
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angleEnd = 60,
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angleStart = 120,
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radius = sphereDia / 2
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}, %)
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|> line(end = [0, chainThickness])
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|> line(end = [-chainWidth, 0])
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|> close()
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// Revolve the chain sketch
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chainHead = revolve(chainSketch, axis = "X")
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|> patternCircular3d(
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arcDegrees = 360,
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axis = [0, 0, 1],
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center = [0, 0, 0],
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instances = nBalls,
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rotateDuplicates = true
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)
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// Create the sketch for the links in between the chains
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linkSketch = startSketchOn("XZ")
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|> circle(
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center = [
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shaftDia / 2 + wallThickness + sphereDia / 2,
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0
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],
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radius = linkDiameter / 2
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)
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// Revolve the link sketch
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linkRevolve = revolve(linkSketch, axis = 'Y', angle = 360 / nBalls)
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|> patternCircular3d(
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arcDegrees = 360,
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axis = [0, 0, 1],
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center = [0, 0, 0],
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instances = nBalls,
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rotateDuplicates = true
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)
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// Create the sketch for the outside walls
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outsideWallSketch = startSketchOn(offsetPlane("XY", offset = -overallThickness / 2))
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|> circle(
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center = [0, 0],
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radius = outsideDiameter / 2
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)
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|> hole(circle(
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center = [0, 0],
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radius = shaftDia / 2 + wallThickness + sphereDia
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), %)
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outsideWall = extrude(outsideWallSketch, length = overallThickness)
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// https://www.mcmaster.com/60355K185/
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