Class: SolidRuby::Assemblies::Gear

Inherits:
Assembly show all
Defined in:
lib/solidruby/assemblies/gear.rb

Direct Known Subclasses

PrintedGear

Instance Attribute Summary collapse

Attributes inherited from Assembly

#hardware, #skip, #transformations, #x, #y, #z

Attributes inherited from SolidRubyObject

#attributes, #children, #siblings, #transformations

Instance Method Summary collapse

Methods inherited from Assembly

#*, #+, #-, #add_to_bom, #color, #colorize, #description, get_skip, get_views, #part, #scad_output, #show_hardware, skip, #threads, #transform, view, #walk_tree

Methods inherited from SolidRubyObject

#&, alias_attr, #debug, #debug?, #mirror, #place, #rotate, #rotate_around, #save, #scale, #to_rubyscad, #translate, #union, #walk_tree, #walk_tree_classes

Constructor Details

#initialize(args = {}) ⇒ Gear

Returns a new instance of Gear.



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# File 'lib/solidruby/assemblies/gear.rb', line 22

def initialize(args = {})
  @module = args[:module] || 1.0
  @teeth = args[:teeth] || 1.0
  @bore = args[:bore] || 0.0
  @height = args[:height] || 3.0
  @hub_dia = args[:hub_dia] || 0.0
  @hub_height = args[:hub_height] || 0.0
  @output_margin_dia = args[:output_margin_dia] || 2
  @output_margin_height = args[:output_margin_height] || 1
  super(args)
end

Instance Attribute Details

#height ⇒ Object (readonly)

this library is to be used to easily work with gears and their distances to each other



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# File 'lib/solidruby/assemblies/gear.rb', line 20

def height
  @height
end

#hub_dia ⇒ Object (readonly)

this library is to be used to easily work with gears and their distances to each other



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# File 'lib/solidruby/assemblies/gear.rb', line 20

def hub_dia
  @hub_dia
end

#hub_height ⇒ Object (readonly)

this library is to be used to easily work with gears and their distances to each other



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# File 'lib/solidruby/assemblies/gear.rb', line 20

def hub_height
  @hub_height
end

#module ⇒ Object (readonly)

this library is to be used to easily work with gears and their distances to each other



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# File 'lib/solidruby/assemblies/gear.rb', line 20

def module
  @module
end

#teeth ⇒ Object (readonly)

this library is to be used to easily work with gears and their distances to each other



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# File 'lib/solidruby/assemblies/gear.rb', line 20

def teeth
  @teeth
end

Instance Method Details

#distance_to(other_gear) ⇒ Object 



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# File 'lib/solidruby/assemblies/gear.rb', line 56

def distance_to(other_gear)
  if @module != other_gear.module
    raise 'You cannot use two gears with different gear modules.'
    return
  end
  (@module.to_f * (@teeth.to_f + other_gear.teeth.to_f)) / 2.0
end

#output ⇒ Object 



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# File 'lib/solidruby/assemblies/gear.rb', line 47

def output
  res = cylinder(d: @module * @teeth + @output_margin_dia, h: @height + @output_margin_height)
  if @hub_height.to_f > 0 && @hub_dia.to_f > 0
    res += cylinder(d: @hub_dia + @output_margin_dia, h: @hub_height + @output_margin_height).translate(z: @height)
  end

  res
end

#ratio(other_gear) ⇒ Object 



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# File 'lib/solidruby/assemblies/gear.rb', line 64

def ratio(other_gear)
  @teeth.to_f / other_gear.teeth.to_f
end

#show ⇒ Object 



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# File 'lib/solidruby/assemblies/gear.rb', line 34

def show
  res = cylinder(d: @module * @teeth, h: @height)

  if @hub_height.to_f > 0 && @hub_dia.to_f > 0
    res += cylinder(d: @hub_dia, h: @hub_height).translate(z: @height)
  end

  if @bore.to_f > 0.0
    res -= cylinder(d: @bore, h: @height + @hub_height + 0.2).translate(z: -0.1)
  end
  res.color('darkgray')
end