2D job assignment item properties


Each element of the job assignment has a set of properties.

To view or edit the properties of 2D job assignment item select the item and click the <Properties> button, or double-click the item.

This is the item properties dialog:

 

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  • <Top level> – plane for the top guide of the EDM-machine.
    To set the top guide level via the graphic window move the top level sign:
    EDMTopLevelPointer
  • <Bottom level> – plane for the bottom guide of the machine.
    To set the bottom guide level via the graphic window move the bottom level sign:
    EDMBottomLevelPointer
     
    To set the exact level of the top or bottom guide click the sign of the level and input the value:
    EDMTopLevelInteractive
  • <Profile stock> – additional stock for the resulting contour. The value of the stock can be either positive or negative.
  • <Overlap before pass> – value of overlap at the beginning of the job assignment item.
  • <Overlap after pass> – sets the value of overlap at the end of the job assignment item.
  • <Auto bridge count> – number of bridges. Bridges properties can be set in the graphic window.
  • <Taper parameters> – if turned off the wire will be positioned at normal to the XY plane and the result of the machining will be a cylindric surface. To machine a conical surface turn on the feature and set the taper angle value and direction for each contour. To set the taper angle click the synchronization line and input the value.
  • EDMTapperSetAngle
     
    When taper is turned on the taper angle value will be output into each NC frame (for example <G01 X30 Y45 A5>). Turning the taper feature on enables additional parameters.
  • <Taper application> can be one of the following values:
  • <All passes> – taper will be applied for all passes of the contours.
  • <Apply after pass> – taper will be applied after the pass number set in the <Pass #> field. Taper will be disabled for the N passes, passes starting with N+1 will have taper enabled.
  • <Cancel after pass> – taper will be canceled after the pass number set in the <Pass #> field. Taper will be enabled for N passes, passes starting with N+1 will have taper disabled.
  • <Corners rolling> – Modern EDM NC-controllers support automatic rolling of sharp corners in the wire path. SprutCAM can use this feature of NC-controller. <Corners rolling> panel contains properties that are used to setup corners rolling feature of the NC. When the feature is enabled the output of contour coordinates into the NC-program are the same (the contour is not changed). However,  in the NC-frames where the corners rolling is required additional words defining the rolling radii are output. Rolling radii can be defined separately for the top and bottom contours. For example, <G01 X95.24 Y53.09 R1.5 R5.3> – the first <R> word defines rolling radius for the bottom contour, the second <R> word defines rolling radius for the top contour 5.3.

Remark:        SprutCAM simulation supports visualization of the wire path modified by the NC-controller corners rolling.

SprutCAM supports various modes of corners rolling which can be set separately for inner(<Inner corners rolling>) and outer corners(<Outer corners rolling>). Whether the corner is inner or outer is determined by the angle value inside the part. Inner corner has the angle of 180° or more,  outer has the angle less than 180°.

 

<Inner corner>

<Outer corner>

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The following modes of rolling are supported:

  • <Off> – in this mode corners rolling feature is disabled, rolling radii are not output into the NC-program.

 

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  • <Sharp> – in this mode only the bottom contour corners are rolled, top level corners are not rolled. Therefore only the <Bottom radius> input field is enabled.

 

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  • <Conical> – in this mode the bottom contour corner rolling radius is set in the appropriate input field. Top contour rolling radius is defined a sum of bottom radius and a value depending on the taper angle and difference of top and bottom contour levels:

 

Rtop = Rbottom ± h · tg α

 

Thereby, a conical surface is machined on the part in the place of corner rolling.

 

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  • <Cylindrical> – corner rolling radius is always equal for the top and bottom levels and is input in the <Bottom radius> field. Thereby, a cylindrical surface is machined in the place of corner rolling.

 

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  • <Fixed> – radii of rolling at top and bottom levels are defined independently in the respective fields and can be set to arbitrary positive values.

 

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Use the second tab of the properties dialog to specify direction and side of the machining for each job assignment item.

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In the graphic window direction is shown with a sky-blue arrow, machining side is shown with a lime arrow.

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This parameters can be modified either via the properties dialog or by clicking in the arrow in the graphic window.

 

 

 

See also:

Wire EDM machining

Job assignment of wire EDM machining operations

4D job assignment item properties

Synchronization lines

Bridges

Multiselect feature

Wire EDM feature