FooCAD Source Code
class ScrewTidyRoundedInsert : Model {
@Custom
var thickness = 0.5
@Custom
var radius = 3
@Custom
var taper = 2
@Custom
var chamferBase = 2
@Custom
var chamferSlope = 2
@Custom
var x = 1
@Custom
var y = 1
// Experimental ! Keep at 0
var feetHeight = 0
fun insert( width : int, depth : int, height : int ) : Shape3d {
val top = Square( width, depth )
.center().roundAllCorners( radius )
val mid = Square( width - taper, depth - taper )
.center().roundAllCorners( radius )
val bottom = Square(
width - taper - chamferBase * 2 / chamferSlope,
depth - taper - chamferBase * 2 / chamferSlope
).center().roundAllCorners( radius )
val insert = ExtrusionBuilder().apply {
crossSection( bottom )
if (chamferBase > 0) {
forward(chamferBase)
crossSection( mid )
}
forward( height - chamferBase )
crossSection( top )
// Now head down to make it hollow
crossSection( top.offset(-thickness) )
forward( -height + thickness + chamferBase )
if (chamferBase > 0 ) {
crossSection( mid.offset( -thickness ) )
forward( -chamferBase )
}
crossSection( bottom.offset(-thickness) )
}.build()
return if (feetHeight <= 0) {
insert
} else {
// What I'm hoping for is to build 4 feet on the bed, and then
// bidge between the shorter distance between the feet in 2 layers,
// then bridge between the longer distances in 2 layers, and then
// fingers crossed, the bottom of the box will bridge!
val layerHeight = 0.2
val feetWidth = 2
val outline = bottom -
bottom.offset(-feetWidth)
val feetEndsProfile = outline -
Square( bottom.size.x+feetWidth*2, bottom.size.y-10 ).center()
val feetProfile = feetEndsProfile -
Square( bottom.size.x-10, bottom.size.y+feetWidth*2 ).center()
val feet = feetProfile.extrude( feetHeight ) +
feetEndsProfile.extrude(layerHeight*4).translateZ( feetHeight - layerHeight*4 ) +
outline.extrude(layerHeight*2).translateZ( feetHeight - layerHeight*2 )
feet + insert.translateZ(feetHeight)
}
}
override fun build() : Shape3d {
return insert( x * 39, y * 54, 44.5 ) // Cube( 100,1,100).center()
}
}
