ShelfBracketWithKeyholes.foocad

A basic shelf bracket without visible screw holes.

Designed for trough planters in the garden. I want to remove the planter easily without tools, and yet held in place when knocked by cats/foxes.

To remove the trough, slide it forward, rotate and then lift.

FooCAD Source Code

import uk.co.nickthecoder.foocad.smartextrusion.v1.*
import static uk.co.nickthecoder.foocad.smartextrusion.v1.SmartExtrusion.*
import uk.co.nickthecoder.foocad.screws.v3.*

include ShelfBracket.foocad

class ShelfBracketWithKeyholes : PlainShelfBracket() {

    var keyhole = KeyholeHanger()

    init {
        //overlap = 3
        depth = 200
    }

    @Piece
    meth bracket() : Shape3d {
        val plain = plainBracket()

        val wallHole = keyhole
                .horizontal()
                .mirrorY()
                .centerZTo( width/2 )
                .backTo( height() - thickness*2 )
        val wallHoles = wallHole
                .frontTo( thickness + round ).also()

        // To help mark the screw holes.
        val marks = Cube( 0.4, 0.4, wallHole.bottom )
            .bottomTo( 1 )
            .centerYTo( wallHole.front + keyhole.holeDiameter )
            .translateY( wallHoles.front - wallHole.front ).also()
            .topTo( plain.top - 1 ).also()
            .color("red")

        return plain - wallHoles - marks
    }

    var footSize = 30
    var clearance = 0.2

    @Piece
    meth footConnector() : Shape3d {
        val shape = Circle( footSize/2 )
        val topShape = (shape intersection shape.translateX(-footSize/4)).toPolygon()

        val bottom = shape
            .smartExtrude(4)
                .edges(Chamfer(chamfer))

        val top = topShape
            .extrude( thickness + clearance + chamfer )
            .bottomTo( bottom.top-chamfer )

        val hole = Countersink()
            .mirrorZ()
            .centerXTo( top.middle.x )

        return bottom + top - hole
    }

    @Piece
    meth footPlain() : Shape3d {
        val foot = Circle( footSize/2 )
            .smartExtrude( 4 + thickness + clearance )
                .bottom( Chamfer( chamfer ) )

        val hole = Countersink()
            .mirrorZ()

        return foot - hole
    }

    @Piece( print="bracket" )
    override meth build() : Shape3d {

        val shelf = Cube( 240, 400, 20 ).centerXY().previewOnly()

        val bracket = bracket()
            .rotateX(90)
            .mirrorZ()
            .leftTo( shelf.left )

        val brackets = bracket.translateY( 300 ).also().centerY()

        val connectors = footConnector()
            .topTo(0)
            .rotateZ(90)
            .leftTo( shelf.left + 20 )
            .backTo( brackets.back -width +6 )
            .mirrorY().also()

        val plainFeet = footPlain()
            .topTo(0)
            .rightTo( shelf.right - 20 )
            .backTo( brackets.back -width )
            .mirrorY().also()

        val shelfAndFeet = ( shelf + connectors + plainFeet )
            //.translateX(35).rotateZ(10)

        return brackets + shelfAndFeet
    }
            
}