/Tools/RoundBoltHead.foocad

import static uk.co.nickthecoder.foocad.chamferedextrude.v1.ChamferedExtrude.*
/**
    Glue to a bolt head, to make it easy to screw by hand.
    The default values are for an M8 bolt.

Print Notes

    Use a brim due to the small contact area with the bed.
*/
class RoundBoltHead : Model {
   
    @Custom( about="Diameter and thickness of the final part" )
    var size = Vector2(22,7)

    @Custom( about="Diameter of the bolt head between the vertices, not the edges" )
    var boltHeadDiameter = 15.5

    @Custom
    var boltHeadThickness = 5

    @Custom( about="Default is 6 for a hex shape" )
    var sides = 6
   
    override fun build() : Shape3d {
        val hex = Circle( boltHeadDiameter/2 ).sides(6).roundAllCorners(boltHeadDiameter/16)
        return Circle( size.x/2 )
            .sides(sides).roundAllCorners( size.x/10 )
            .chamferedExtrude(size.y,1,0) -
            hex.extrude(boltHeadThickness+1).bottomTo(size.y - boltHeadThickness)
    }

}