HoleTrim.foocad

Drill a hole in a piece of wood, and then insert this plastic trim to neaten up the hole, and prevent water from getting in.

Wood glue will hold it in place, even though wood glue doesn't stick to plastic. (due to the layer lines).

For a slot shaped hole (rather than a circle) : Mark two points slotDistance apart Drill the two holes Clean up the remainder with a chisel.

FooCAD Source Code

import uk.co.nickthecoder.foocad.smartextrusion.v1.*
import static uk.co.nickthecoder.foocad.smartextrusion.v1.SmartExtrusion.*
import uk.co.nickthecoder.foocad.compound.v1.*

class HoleTrim : Model {

    @Custom
    var drillDiameter = 10.0

    @Custom
    var internalDiameter = 8.0

    @Custom( about="For non-zero values, the result is a slot, instead of a round hole" )
    var slotDistance = 0.0

    @Custom
    var depth = 20

    @Custom
    var clearance = 0.3

    @Custom( about="Width and thickness of the trim" )
    var trimSize = Vector2( 3, 1 )

    fun shape( diameter : double ) : Shape2d {
        return if (slotDistance > 0) {
            val circle = Circle( diameter / 2 )
            return circle.hull( circle.translateX( slotDistance ) )
                .centerX()
        } else {
            Circle( diameter / 2 )
        }
    }

    override fun build() = Compound(true).apply {

        val trim = shape( drillDiameter + trimSize.x*2 )
            .smartExtrude(trimSize.y)
            .bottom( Chamfer( trimSize.y ) )
        val tube = shape( drillDiameter - clearance*2 )
            .extrude( depth )
            .bottomTo( trim.top )
        val hole = shape( internalDiameter - clearance*2 )
            .smartExtrude( tube.top + 0.02 )
            .bottom( Chamfer(-trimSize.y*0.6, trimSize.y*0.6) )
            .bottomTo( -0.01 )
    
        + trim
        + tube
        - hole
    }.build()
}