Class: JennCad::Extras::Din934

Inherits:
Hardware
  • Object
show all
Defined in:
lib/jenncad/extras/din934.rb

Constant Summary collapse

Data = 
{2.5=> {side_to_side:5,height:2, support_diameter:2.8},
  3 => {side_to_side:5.5,height:2.4, support_diameter:3.5},
  4 => {side_to_side:7,height:3.2, support_diameter:4.4},
  5 => {side_to_side:8,height:4, support_diameter:5.3},
  6 => {side_to_side:10,height:5, support_diameter:6.3},
  8 => {side_to_side:13,height:6.5, support_diameter:8.3},
 10 => {side_to_side:17,height:8, support_diameter:10.3},
 12 => {side_to_side:19,height:10, support_diameter:12.3},
}

Instance Attribute Summary collapse

Attributes inherited from Hardware

#z_fight

Instance Method Summary collapse

Methods inherited from Hardware

#option_string

Constructor Details

#initialize(size, args = {}) ⇒ Din934

Returns a new instance of Din934.



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# File 'lib/jenncad/extras/din934.rb', line 16

def initialize(size,args={})
  @size = size
  @options = args.dup
  @support = args[:support] ||= false
  @support_layer_height = args[:support_layer_height] ||= 0.2
  @margin = args[:margin] ||= 0.2 # default output margin

  @slot = args[:slot] || nil
  @slot_margin = args[:slot_margin] || 0.2
  @slot_direction = args[:slot_direction] || "z"
  @cylinder_length = args[:cylinder_length] || 0  # for slot only

  @transformations ||= []
  @args = args

  @direction = args[:direction] || @slot_direction

  @s = Data[@size][:side_to_side]
  @height = Data[@size][:height]
  @support_diameter = Data[@size][:support_diameter]
  super(args)
end

Instance Attribute Details

#data ⇒ Object

Returns the value of attribute data.



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# File 'lib/jenncad/extras/din934.rb', line 4

def data
  @data
end

#height ⇒ Object

Returns the value of attribute height.



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# File 'lib/jenncad/extras/din934.rb', line 3

def height
  @height
end

Instance Method Details

#add_support(layer_height = @support_layer_height) ⇒ Object 



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# File 'lib/jenncad/extras/din934.rb', line 39

def add_support(layer_height=@support_layer_height)
  res = cylinder(d:@support_diameter,h:@height-layer_height)
  # on very small nuts, add a support base of one layer height, so the support won't fall over
  if @size < 6
    res += cylinder(d:@s-1,h:layer_height)
  end
  res
end

#cut ⇒ Object 



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# File 'lib/jenncad/extras/din934.rb', line 75

def cut
  Aggregation.new("din934c#{@size}#{option_string}", nut_934(false,@margin))
end

#nut_934(show = true, margin = 0, height_margin = 0) ⇒ Object 



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# File 'lib/jenncad/extras/din934.rb', line 83

def nut_934(show=true,margin=0,height_margin=0)
  size = @s + margin

  res = cylinder(d:(size/Math.sqrt(3))*2,h:@height+height_margin,fn:6)
  res -= cylinder(d:@size,h:@height) if show == true
  if @support
    res -= add_support
  end
  res.color("Gainsboro") if show
  res
end

#show ⇒ Object 



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# File 'lib/jenncad/extras/din934.rb', line 79

def show
  Aggregation.new("din934s#{@size}#{option_string}", nut_934)
end

#slot ⇒ Object 



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# File 'lib/jenncad/extras/din934.rb', line 48

def slot
  case @slot_direction
    when "x"
      pos = {x:@slot}
    when "y"
      pos = {y:@slot}
    when "z"
      pos = {z:@slot}
    when "-x"
      pos = {x:-@slot}
    when "-y"
      pos = {y:-@slot}
    when "-z"
      pos = {z:-@slot}
    else
    raise "Invalid slot direction #{@slot_direction}"
  end
  res = hull(
    nut_934(false,@margin,@slot_margin),
    nut_934(false,@margin,@slot_margin).move(pos)
  )
  if @cylinder_length > 0
    res += cylinder(d:@size+@margin,h:@cylinder_length)
  end
  res
end