174 lines
7.8 KiB
Go
174 lines
7.8 KiB
Go
package main
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import "github.com/deadsy/sdfx/sdf"
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const (
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PLATE_THICKNESS = 2.825
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TOP_THICKNESS = 3.175 // 1/8th inch for possible thin acrylic top
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BOTTOM_THICKNESS = 16 - PLATE_THICKNESS - TOP_THICKNESS
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PLATE_WIDTH = 218
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PLATE_HEIGHT = 130
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TOLERANCE = 8
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CABLE_HEAD_HEIGHT = 6
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CABLE_HEAD_WIDTH = 10
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USB_DAUGHTERBOARD_HEIGHT = 12.6
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USB_DAUGHTERBOARD_LENGTH = 21.4
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USB_DAUGHTERBOARD_THICKNESS = 4.7 // includes usb jack
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)
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func plate() sdf.SDF3 {
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plate2D := sdf.Box2D(sdf.V2{X: PLATE_WIDTH, Y: PLATE_HEIGHT}, 5)
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hjkl := hjkl()
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hjkl = sdf.Transform2D(hjkl, sdf.Translate2d(sdf.V2{X: plate2D.BoundingBox().Max.X / 2, Y: plate2D.BoundingBox().Max.Y / 6}))
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plate2D = sdf.Difference2D(plate2D, hjkl)
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buttonMounts := buttonMounts()
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buttonMounts = sdf.Transform2D(buttonMounts, sdf.Translate2d(sdf.V2{X: -plate2D.BoundingBox().Max.X / 2.5, Y: plate2D.BoundingBox().Max.Y / 3}))
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plate2D = sdf.Difference2D(plate2D, buttonMounts)
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buttonRow := buttonRow()
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buttonRow = sdf.Transform2D(buttonRow, sdf.Translate2d(sdf.V2{X: plate2D.BoundingBox().Max.X / 2, Y: plate2D.BoundingBox().Max.Y / 1.25}))
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plate2D = sdf.Difference2D(plate2D, buttonRow)
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corners := cornerHoles(plate2D, screwHole())
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plate2D = sdf.Difference2D(plate2D, corners)
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length := lengthHoles(plate2D, smallScrewHole())
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plate2D = sdf.Difference2D(plate2D, length)
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return sdf.Extrude3D(plate2D, PLATE_THICKNESS)
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}
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func top() sdf.SDF3 {
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top2D := sdf.Box2D(sdf.V2{X: PLATE_WIDTH, Y: PLATE_HEIGHT}, 5)
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hjkl := buttonRow()
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hjkl = sdf.Box2D(sdf.V2{X: hjkl.BoundingBox().Max.X*2 + 2, Y: hjkl.BoundingBox().Max.Y*2 + 2}, 1)
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hjkl = sdf.Transform2D(hjkl, sdf.Rotate2d(sdf.DtoR(30)))
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hjkl = sdf.Transform2D(hjkl, sdf.Translate2d(sdf.V2{X: top2D.BoundingBox().Max.X / 2, Y: top2D.BoundingBox().Max.Y / 6}))
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top2D = sdf.Difference2D(top2D, hjkl)
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buttons := buttons()
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buttons = sdf.Transform2D(buttons, sdf.Translate2d(sdf.V2{X: -top2D.BoundingBox().Max.X / 2.5, Y: top2D.BoundingBox().Max.Y / 3}))
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top2D = sdf.Difference2D(top2D, buttons)
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buttonRow := buttonRow()
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buttonRow = sdf.Box2D(sdf.V2{X: buttonRow.BoundingBox().Max.X*2 + 2, Y: buttonRow.BoundingBox().Max.Y*2 + 2}, 1)
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buttonRow = sdf.Transform2D(buttonRow, sdf.Translate2d(sdf.V2{X: top2D.BoundingBox().Max.X / 2, Y: top2D.BoundingBox().Max.Y / 1.25}))
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top2D = sdf.Difference2D(top2D, buttonRow)
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// hjkl := buttonRow
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corners := cornerHoles(top2D, screwHole())
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top2D = sdf.Difference2D(top2D, corners)
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length := lengthHoles(top2D, smallScrewHole())
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top2D = sdf.Difference2D(top2D, length)
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return sdf.Extrude3D(top2D, TOP_THICKNESS)
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}
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func bottom() sdf.SDF3 {
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cavity2D := sdf.Box2D(sdf.V2{X: PLATE_WIDTH - TOLERANCE, Y: PLATE_HEIGHT - TOLERANCE}, 5)
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walls2D := sdf.Box2D(sdf.V2{X: PLATE_WIDTH, Y: PLATE_HEIGHT}, 5)
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bottom2D := sdf.Difference2D(walls2D, cavity2D)
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cornerScrewHolder, _ := sdf.Circle2D((M4_SCREW_HOLE_DIAMETER + 8) / 2)
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cornerScrewHolders := cornerHoles(bottom2D, cornerScrewHolder)
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cornerScrews := cornerHoles(bottom2D, screwHole())
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bottom2D = sdf.Union2D(bottom2D, cornerScrewHolders)
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bottom2D = sdf.Difference2D(bottom2D, cornerScrews)
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cavity2D = sdf.Difference2D(cavity2D, cornerScrewHolders)
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pegHole, _ := sdf.Circle2D(2.4 / 2) // M2 screw
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pegHoles := make([]sdf.SDF2, 4)
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for i := range pegHoles {
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pegHoles[i] = pegHole
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}
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pegHoles[0] = sdf.Transform2D(pegHoles[0], sdf.Translate2d(sdf.V2{X: 48.26 / 2, Y: 11.4 / 2})) //pico mounting hole spacing
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pegHoles[1] = sdf.Transform2D(pegHoles[1], sdf.Translate2d(sdf.V2{X: 48.26 / 2, Y: -11.4 / 2})) //pico mounting hole spacing
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pegHoles[2] = sdf.Transform2D(pegHoles[2], sdf.Translate2d(sdf.V2{X: -48.26 / 2, Y: -11.4 / 2})) //pico mounting hole spacing
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pegHoles[3] = sdf.Transform2D(pegHoles[3], sdf.Translate2d(sdf.V2{X: -48.26 / 2, Y: 11.4 / 2})) //pico mounting hole spacing
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peg, _ := sdf.Circle2D(2.4) // M2 screw
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pegs := make([]sdf.SDF2, 4)
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for i := range pegs {
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pegs[i] = peg
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}
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pegs[0] = sdf.Transform2D(pegs[0], sdf.Translate2d(sdf.V2{X: 48.26 / 2, Y: 11.4 / 2})) //pico mounting hole spacing
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pegs[1] = sdf.Transform2D(pegs[1], sdf.Translate2d(sdf.V2{X: 48.26 / 2, Y: -11.4 / 2})) //pico mounting hole spacing
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pegs[2] = sdf.Transform2D(pegs[2], sdf.Translate2d(sdf.V2{X: -48.26 / 2, Y: -11.4 / 2})) //pico mounting hole spacing
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pegs[3] = sdf.Transform2D(pegs[3], sdf.Translate2d(sdf.V2{X: -48.26 / 2, Y: 11.4 / 2})) //pico mounting hole spacing
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mount2D := sdf.Union2D(pegs...)
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mountingHoles2D := sdf.Union2D(pegHoles...)
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mount2D = sdf.Difference2D(mount2D, mountingHoles2D)
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mount2D = sdf.Transform2D(mount2D, sdf.Translate2d(sdf.V2{X: bottom2D.BoundingBox().Max.X / 2, Y: -bottom2D.BoundingBox().Max.X / 3}))
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mount := sdf.Extrude3D(mount2D, 4) // M2x4mm screw holes
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// bottom2D = sdf.Union2D(bottom2D, mount)
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bottom := sdf.Extrude3D(bottom2D, BOTTOM_THICKNESS)
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bottom = sdf.Union3D(bottom, mount)
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cavity2D = sdf.Elongate2D(cavity2D, sdf.V2{X: 1, Y: 1})
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floor := sdf.Extrude3D(cavity2D, PLATE_THICKNESS)
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floor = sdf.Transform3D(floor, sdf.Translate3d(sdf.V3{X: 0, Y: 0, Z: -(bottom.BoundingBox().Max.Z*2+floor.BoundingBox().Max.Z*2)/4 - 0.50}))
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bottom = sdf.Union3D(bottom, floor)
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cableHole2D := sdf.Box2D(sdf.V2{X: CABLE_HEAD_WIDTH, Y: CABLE_HEAD_HEIGHT}, 0)
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cableHole := sdf.Extrude3D(cableHole2D, TOLERANCE)
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cableHole = sdf.Transform3D(cableHole, sdf.RotateX(sdf.DtoR(90)))
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cableHole = sdf.Transform3D(cableHole, sdf.Translate3d(sdf.V3{X: 0, Y: (bottom.BoundingBox().Max.Y + cableHole.BoundingBox().Max.Y) - cableHole.BoundingBox().Max.Y*2, Z: cableHole.BoundingBox().Max.Z / 3}))
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bottom = sdf.Difference3D(bottom, cableHole)
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usbCutout, _ := sdf.Box3D(sdf.V3{X: USB_DAUGHTERBOARD_LENGTH, Y: USB_DAUGHTERBOARD_HEIGHT, Z: USB_DAUGHTERBOARD_THICKNESS}, 0)
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usbCutout = sdf.Transform3D(usbCutout, sdf.Translate3d(sdf.V3{X: 0, Y: (floor.BoundingBox().Max.Y + usbCutout.BoundingBox().Max.Y) - usbCutout.BoundingBox().Max.Y*2 + 2.6, Z: 0})) // 5 for m3x5 screw
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bottom = sdf.Difference3D(bottom, usbCutout)
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/*
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usbCutoutPeg2D, _ := sdf.Circle2D(3 / 2) // m3 hole
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usbCutoutPeg := sdf.Extrude3D(usbCutoutPeg2D, 1.5) // thickness of daughtboard pcb
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usbCutoutPeg = sdf.Transform3D(usbCutoutPeg, sdf.Translate3d(sdf.V3{X: 7.7, Y: (floor.BoundingBox().Max.Y + usbCutoutPeg.BoundingBox().Max.Y) - usbCutoutPeg.BoundingBox().Max.Y*2, Z: -usbCutoutPeg.BoundingBox().Max.Z * 2}))
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usbCutoutPeg2 := sdf.Transform3D(usbCutoutPeg, sdf.Translate3d(sdf.V3{X: -15.4, Y: 0, Z: 0}))
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bottom = sdf.Union3D(bottom, usbCutoutPeg, usbCutoutPeg2)
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*/
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return bottom
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}
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func cornerHoles(input, hole sdf.SDF2) sdf.SDF2 {
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cornerHoles := make([]sdf.SDF2, 4)
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for i := range cornerHoles {
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cornerHoles[i] = hole
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}
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cornerHoles[0] = sdf.Transform2D(cornerHoles[0], sdf.Translate2d(sdf.V2{
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X: input.BoundingBox().Max.X - TOLERANCE,
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Y: input.BoundingBox().Max.Y - TOLERANCE}))
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cornerHoles[1] = sdf.Transform2D(cornerHoles[1], sdf.Translate2d(sdf.V2{
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X: -(input.BoundingBox().Max.X - TOLERANCE),
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Y: input.BoundingBox().Max.Y - TOLERANCE}))
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cornerHoles[2] = sdf.Transform2D(cornerHoles[2], sdf.Translate2d(sdf.V2{
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X: -(input.BoundingBox().Max.X - TOLERANCE),
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Y: -(input.BoundingBox().Max.Y - TOLERANCE)}))
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cornerHoles[3] = sdf.Transform2D(cornerHoles[3], sdf.Translate2d(sdf.V2{
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X: input.BoundingBox().Max.X - TOLERANCE,
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Y: -(input.BoundingBox().Max.Y - TOLERANCE)}))
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return sdf.Union2D(cornerHoles...)
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}
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func lengthHoles(input, hole sdf.SDF2) sdf.SDF2 {
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cornerHoles := make([]sdf.SDF2, 2)
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for i := range cornerHoles {
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cornerHoles[i] = hole
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}
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cornerHoles[0] = sdf.Transform2D(cornerHoles[0], sdf.Translate2d(sdf.V2{
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X: 0,
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Y: input.BoundingBox().Max.Y - TOLERANCE}))
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cornerHoles[1] = sdf.Transform2D(cornerHoles[1], sdf.Translate2d(sdf.V2{
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X: 0,
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Y: -(input.BoundingBox().Max.Y - TOLERANCE)}))
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return sdf.Union2D(cornerHoles...)
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}
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