WateringCanSpout2.foocad

My spout has degraded in the sun, but the body is still looking good. 3D printer to save a little plastic ;-)

This version is printed as a single piece, upside-down. But, it is VERY unstable (top heavey).

I have had 2 failed prints at 90% + (at different places, and different types of failure). I then added the "fins"

Print Notes

Add a generous brim. I used 10mm I upped the permimeters to 4, with 50% infill.

FooCAD Source Code

import uk.co.nickthecoder.foocad.threaded.v2.*
import static uk.co.nickthecoder.foocad.layout.v1.Layout2d.*
import static uk.co.nickthecoder.foocad.layout.v1.Layout3d.*

class WateringCanSpout2 : AbstractModel() {

    @Custom( about="Diameter of the end, where the rose attaches" )
    var endD = 23.5

    @Custom( about="Length of the slightly tapered region where the rose attaches" )
    var endL = 20.0
    
    // Don't make it too large, or there won't be enough of a lip for the sealing washer. 
    @Custom( about="Internal diameter of the tube at the can end" )
    var midD = 26

    @Custom( about="Length of the shaft, not including the threaded part or the rose attachment" )
    var length = 180

    @Custom( about="Thread depth" )
    var threadDepth = 1.0

    @Custom( about="Thread pitch" )
    var threadPitch = 5.0

    @Custom( about="Thread diameter" )
    var threadD = 39.5
    
    @Custom( about="Thickness of all the parts" )
    var thickness = 1.2

    @Custom( about="Length of the threaded portion" )
    var connectorL = 19

    val shoulder = 10

    // Cut the fins off after printing!
    @Custom( about="Helps support the wobbly tube while printing. Only needed for plater slingers?" )
    var includeFins = true

    val taper = 1.0

    fun tube() : Shape3d {
        val bodyExternalR = threadD / 2 + thickness + threadDepth 

        val tube = ExtrusionBuilder().apply {
            crossSection( Circle( bodyExternalR ) )
            forward( shoulder )

            crossSection( Circle( midD /2 + thickness*2 ) )
            forward( length - shoulder )
            crossSection( Circle( endD/2 ))
            forward( endL )
            crossSection( -taper )
            crossSection( - thickness )
            forward( -endL )
            crossSection( taper )
            forward( -length + shoulder)
            crossSection( Circle( midD /2 + thickness ) )
            forward( -shoulder )
            crossSection()
        
        }.buildClosed()

    
        return tube
    }

    fun body() : Shape3d {
        val bodyExternalR = threadD / 2 + thickness + threadDepth 
        val threaded = Thread( threadD, threadPitch )

        val stop = (Circle( bodyExternalR ) - Circle( midD / 2 + thickness ) ).extrude( thickness )

        val thread = (
            threaded.nutHeight( connectorL ).nut()
        ).bottomTo( stop.top )

        return thread + stop
    }

    override fun build() : Shape3d {
        val tube = tube().mirrorZ().bottomTo(0)
        val body = body().bottomTo( tube.top )

        val fins = if ( includeFins ) {
            val rect = Square( 20, 0.8 ).centerY()
            ExtrusionBuilder().apply {
                crossSection( rect.leftTo( endD/2 - taper ) )
                forward( endL )
                crossSection( rect.leftTo( endD/2 ) )
                forward( (length- shoulder) * 0.5  )
                crossSection( rect.scaleX(0.01).leftTo((endD/2 + midD/2+thickness)/2 ) )
            }.build()
            .color("Green")
            .repeatAroundZ(4)
        } else {
            null
        }
        return tube + body + fins
      
    }

}