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		    Branch {
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		      DstPort		      1
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		    Branch {
		      DstBlock		      "Sum2"
		      DstPort		      2
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		Line {
		  SrcBlock		  "Sum2"
		  SrcPort		  1
		  DstBlock		  "Spring"
		  DstPort		  1
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		Line {
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		  SrcPort		  1
		  DstBlock		  "Inertia"
		  DstPort		  1
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		Line {
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		  SrcPort		  1
		  DstBlock		  "Velocity"
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		Line {
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		  DstBlock		  "Sum"
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		Line {
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		  DstBlock		  "1/eA"
		  DstPort		  1
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		Line {
		  SrcBlock		  "1/eA"
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		  Points		  [-50, 0]
		  DstBlock		  "Sum"
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		Line {
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		  Points		  [20, 0]
		  Branch {
		    DstBlock		    "gdot"
		    DstPort		    1
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		  Branch {
		    Points		    [0, 45; -105, 0]
		    Branch {
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		    Branch {
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		      DstBlock		      "Position"
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		Line {
		  SrcBlock		  "At-rest gap"
		  SrcPort		  1
		  DstBlock		  "Sum2"
		  DstPort		  1
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		Line {
		  SrcBlock		  "Electrostatic force"
		  SrcPort		  1
		  DstBlock		  "Sum1"
		  DstPort		  1
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		Line {
		  SrcBlock		  "Spring"
		  SrcPort		  1
		  Points		  [0, -35; 35, 0; 0, -20]
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		  DstBlock		  "Sum1"
		  DstPort		  3
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	    Block {
	      BlockType		      Outport
	      Name		      "Q"
	      Position		      [285, 20, 305, 40]
	      Port		      "1"
	      OutputWhenDisabled      held
	      InitialOutput	      "0"
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	    Block {
	      BlockType		      Outport
	      Name		      "g"
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	    Block {
	      BlockType		      Outport
	      Name		      "gdot"
	      Position		      [285, 115, 305, 135]
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	      InitialOutput	      "0"
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	    Line {
	      SrcBlock		      "V_0"
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	      DstBlock		      "Linear Region"
	      DstPort		      1
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	    Line {
	      SrcBlock		      "Linear Region"
	      SrcPort		      1
	      Points		      [30, 0; 0, -30]
	      DstBlock		      "Q"
	      DstPort		      1
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	    Line {
	      SrcBlock		      "Linear Region"
	      SrcPort		      2
	      DstBlock		      "g"
	      DstPort		      1
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	      SrcPort		      3
	      Points		      [30, 0; 0, 25]
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	      DstPort		      1
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	Block {
	  BlockType		  SubSystem
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	  ShowPortLabels	  on
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	  MaskIconOpaque	  on
	  MaskIconRotate	  off
	  MaskIconUnits		  autoscale
	  System {
	    Name		    "Inertial mass\nIn: force\nOut: position"
	    Location		    [203, 331, 587, 454]
	    Open		    off
	    ScreenColor		    white
	    Block {
	      BlockType		      Inport
	      Name		      "In"
	      Position		      [15, 20, 35, 40]
	      Port		      "1"
	      PortWidth		      "-1"
	      SampleTime	      "-1"
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	    Block {
	      BlockType		      Gain
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	      Position		      [80, 14, 130, 46]
	      Gain		      "1/mass"
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	    Block {
	      BlockType		      Integrator
	      Name		      "Position"
	      Position		      [255, 15, 285, 45]
	      ExternalReset	      none
	      InitialConditionSource      internal
	      InitialCondition	      "x_dot0"
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	      UpperSaturationLimit      "inf"
	      LowerSaturationLimit      "-inf"
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	      ShowStatePort	      off
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	    Block {
	      BlockType		      Integrator
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	      Position		      [190, 15, 220, 45]
	      ExternalReset	      none
	      InitialConditionSource      internal
	      InitialCondition	      "x0"
	      LimitOutput	      off
	      UpperSaturationLimit      "inf"
	      LowerSaturationLimit      "-inf"
	      ShowSaturationPort      off
	      ShowStatePort	      off
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	    Block {
	      BlockType		      Outport
	      Name		      "Out"
	      Position		      [340, 20, 360, 40]
	      Port		      "1"
	      OutputWhenDisabled      held
	      InitialOutput	      "0"
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	      DstBlock		      "Position"
	      DstPort		      1
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	    Line {
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	      Labels		      [1, 1]
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	      SrcPort		      1
	      DstBlock		      "Velocity"
	      DstPort		      1
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	    Line {
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	      Labels		      [0, 0]
	      SrcBlock		      "In"
	      SrcPort		      1
	      DstBlock		      "Inertia"
	      DstPort		      1
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	    Line {
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	      Labels		      [0, 0]
	      SrcBlock		      "Position"
	      SrcPort		      1
	      DstBlock		      "Out"
	      DstPort		      1
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	Block {
	  BlockType		  SubSystem
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	  Position		  [105, 12, 150, 48]
	  ShowPortLabels	  on
	  MaskType		  "Spring_mask_dashpot"
	  MaskDescription	  "Implements a general spring-mass-dashpot "
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	  MaskIconFrame		  on
	  MaskIconOpaque	  on
	  MaskIconRotate	  off
	  MaskIconUnits		  autoscale
	  MaskValueString	  "||||"
	  System {
	    Name		    "Spring-mass-dashpot\nIn: force\nOut: "
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	    Location		    [198, 317, 667, 509]
	    Open		    off
	    ScreenColor		    white
	    Block {
	      BlockType		      Inport
	      Name		      "In"
	      Position		      [25, 15, 45, 35]
	      Port		      "1"
	      PortWidth		      "-1"
	      SampleTime	      "-1"
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	    Block {
	      BlockType		      Gain
	      Name		      "Damping constant"
	      Position		      [185, 75, 215, 105]
	      Orientation	      left
	      NamePlacement	      alternate
	      Gain		      "b"
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	    Block {
	      BlockType		      Gain
	      Name		      "Inertia"
	      Position		      [150, 19, 200, 51]
	      ShowName		      off
	      Gain		      "1/mass"
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	    Block {
	      BlockType		      Integrator
	      Name		      "Position"
	      Position		      [325, 20, 355, 50]
	      ExternalReset	      none
	      InitialConditionSource      internal
	      InitialCondition	      "x_dot0"
	      LimitOutput	      off
	      UpperSaturationLimit      "inf"
	      LowerSaturationLimit      "-inf"
	      ShowSaturationPort      off
	      ShowStatePort	      off
	      AbsoluteTolerance	      "auto"
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	    Block {
	      BlockType		      Gain
	      Name		      "Spring constant"
	      Position		      [315, 115, 345, 145]
	      Orientation	      left
	      NamePlacement	      alternate
	      Gain		      "k"
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	    Block {
	      BlockType		      Sum
	      Name		      "Sum"
	      Position		      [75, 17, 105, 48]
	      ShowName		      off
	      Inputs		      "+-"
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	    Block {
	      BlockType		      Sum
	      Name		      "Sum1"
	      Position		      [36, 60, 74, 75]
	      Orientation	      up
	      NamePlacement	      alternate
	      ShowName		      off
	      Inputs		      "++"
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	    Block {
	      BlockType		      Integrator
	      Name		      "Velocity"
	      Position		      [260, 20, 290, 50]
	      ExternalReset	      none
	      InitialConditionSource      internal
	      InitialCondition	      "x0"
	      LimitOutput	      off
	      UpperSaturationLimit      "inf"
	      LowerSaturationLimit      "-inf"
	      ShowSaturationPort      off
	      ShowStatePort	      off
	      AbsoluteTolerance	      "auto"
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	    Block {
	      BlockType		      Outport
	      Name		      "Out"
	      Position		      [410, 25, 430, 45]
	      Port		      "1"
	      OutputWhenDisabled      held
	      InitialOutput	      "0"
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	    Line {
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	      SrcPort		      1
	      Points		      [-265, 0]
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	      DstPort		      1
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	    Line {
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	      DstBlock		      "Sum1"
	      DstPort		      2
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	    Line {
	      SrcBlock		      "Sum1"
	      SrcPort		      1
	      Points		      [0, -15]
	      DstBlock		      "Sum"
	      DstPort		      2
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	    Line {
	      SrcBlock		      "Velocity"
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	      Points		      [10, 0]
	      Branch {
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	      Branch {
		DstBlock		"Position"
		DstPort			1
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	    Line {
	      Name		      "Position"
	      SrcBlock		      "Position"
	      SrcPort		      1
	      Points		      [20, 0]
	      Branch {
		Points			[0, 95]
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		DstPort			1
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	      Branch {
		DstBlock		"Out"
		DstPort			1
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	    Line {
	      SrcBlock		      "In"
	      SrcPort		      1
	      DstBlock		      "Sum"
	      DstPort		      1
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	    Line {
	      Name		      "Force"
	      Labels		      [1, 0]
	      SrcBlock		      "Sum"
	      SrcPort		      1
	      DstBlock		      "Inertia"
	      DstPort		      1
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	    Line {
	      Name		      "Acceleration"
	      Labels		      [1, 0]
	      SrcBlock		      "Inertia"
	      SrcPort		      1
	      DstBlock		      "Velocity"
	      DstPort		      1
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	Block {
	  BlockType		  SubSystem
	  Name			  "State-space spring-mass"
	  Position		  [220, 31, 270, 64]
	  ShowPortLabels	  on
	  MaskType		  "State-space spring-mass-dashpot"
	  MaskDescription	  "Input is force; two outputs  position "
				  "and velocity"
	  MaskPromptString	  "mass|spring constant|damping constant|initia"
				  "l position|initial velocity"
	  MaskStyleString	  "edit,edit,edit,edit,edit"
	  MaskVariables		  "m=@1;k=@2;b=@3;x_0=@4;xdot_0=@5;"
	  MaskIconFrame		  on
	  MaskIconOpaque	  on
	  MaskIconRotate	  off
	  MaskIconUnits		  autoscale
	  MaskValueString	  "||||"
	  System {
	    Name		    "State-space spring-mass"
	    Location		    [203, 332, 684, 534]
	    Open		    off
	    ScreenColor		    white
	    Block {
	      BlockType		      Inport
	      Name		      "In"
	      Position		      [95, 70, 115, 90]
	      Port		      "1"
	      PortWidth		      "-1"
	      SampleTime	      "-1"
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	    Block {
	      BlockType		      Demux
	      Name		      "Demux"
	      Position		      [250, 62, 285, 98]
	      Outputs		      "2"
	    }
	    Block {
	      BlockType		      StateSpace
	      Name		      "State-Space"
	      Position		      [160, 62, 220, 98]
	      A			      "[0,1; -k/m, -b/m]"
	      B			      "[0; 1/m]"
	      C			      "[1,0;0,1]"
	      D			      "[0;0]"
	      X0		      "[x_0;xdot_0]"
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	    Block {
	      BlockType		      Outport
	      Name		      "Pos"
	      Position		      [325, 60, 345, 80]
	      Port		      "1"
	      OutputWhenDisabled      held
	      InitialOutput	      "0"
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	    Block {
	      BlockType		      Outport
	      Name		      "Vel"
	      Position		      [325, 105, 345, 125]
	      Port		      "2"
	      OutputWhenDisabled      held
	      InitialOutput	      "0"
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	    Line {
	      SrcBlock		      "Demux"
	      SrcPort		      2
	      Points		      [20, 0]
	      DstBlock		      "Vel"
	      DstPort		      1
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	    Line {
	      SrcBlock		      "Demux"
	      SrcPort		      1
	      DstBlock		      "Pos"
	      DstPort		      1
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	    Line {
	      SrcBlock		      "State-Space"
	      SrcPort		      1
	      DstBlock		      "Demux"
	      DstPort		      1
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	    Line {
	      SrcBlock		      "In"
	      SrcPort		      1
	      DstBlock		      "State-Space"
	      DstPort		      1
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	  }
	}
	Block {
	  BlockType		  SubSystem
	  Name			  "Transfer-fn spring-mass"
	  Position		  [335, 21, 390, 54]
	  ShowPortLabels	  on
	  MaskType		  "Transfer-fn spring-mass"
	  MaskDescription	  "Implements transfer function version "
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	  MaskPromptString	  "mass|spring constant|damping constant"
	  MaskStyleString	  "edit,edit,edit"
	  MaskVariables		  "m=@1;k=@2;b=@3;"
	  MaskIconFrame		  on
	  MaskIconOpaque	  on
	  MaskIconRotate	  off
	  MaskIconUnits		  autoscale
	  MaskValueString	  "||"
	  System {
	    Name		    "Transfer-fn spring-mass"
	    Location		    [203, 331, 569, 538]
	    Open		    off
	    ScreenColor		    white
	    Block {
	      BlockType		      Inport
	      Name		      "Force"
	      Position		      [90, 75, 110, 95]
	      Port		      "1"
	      PortWidth		      "-1"
	      SampleTime	      "-1"
	    }
	    Block {
	      BlockType		      Demux
	      Name		      "Demux"
	      Position		      [210, 67, 245, 103]
	      Outputs		      "2"
	    }
	    Block {
	      BlockType		      TransferFcn
	      Name		      "Transfer Fcn"
	      Position		      [135, 67, 190, 103]
	      Numerator		      "[0,1 ; 1,0]"
	      Denominator	      "[m b k]"
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	    Block {
	      BlockType		      Outport
	      Name		      "Vel"
	      Position		      [275, 45, 295, 65]
	      Port		      "1"
	      OutputWhenDisabled      held
	      InitialOutput	      "0"
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	    Block {
	      BlockType		      Outport
	      Name		      "Pos"
	      Position		      [275, 100, 295, 120]
	      Port		      "2"
	      OutputWhenDisabled      held
	      InitialOutput	      "0"
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	    Line {
	      SrcBlock		      "Demux"
	      SrcPort		      2
	      Points		      [10, 0]
	      DstBlock		      "Pos"
	      DstPort		      1
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	    Line {
	      SrcBlock		      "Demux"
	      SrcPort		      1
	      Points		      [10, 0]
	      DstBlock		      "Vel"
	      DstPort		      1
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	    Line {
	      SrcBlock		      "Transfer Fcn"
	      SrcPort		      1
	      DstBlock		      "Demux"
	      DstPort		      1
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	    Line {
	      SrcBlock		      "Force"
	      SrcPort		      1
	      DstBlock		      "Transfer Fcn"
	      DstPort		      1
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	  }
	}
      }
    }
  }
}