Stepover
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Note that some of the options in this tab may be unavailable, depending on your licence.
Model Type - Select the type of geometry that makes up the shapes you are to machine, from the options 'Wireframe', 'Surface' and 'Solid'. If you are to machine features, select 'Solid'. (Note that 'Solid' is only available with a solid model open.)
Offset - Offsets the final machined outline from the part geometry. Specify a positive offset to leave bosses oversized, for example. This is a three dimensional offset (see an illustration).
Z Offset - Offsets the final machined outline from the part geometry in the Z axis only. When specified this overrides any Z component of the 'Offset' value (see above), so specifying a Z Offset of 0 would reduce 'Offset' to being purely XY.
Tolerance - Specifies the maximum deviation of the generated toolpath from the selected geometry.
Maximum Forward Step -
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Stepover |
Note that:
the forward step may be adjusted downwards from the maximum value, according to the part geometry.
if you set a value greater than the tool radius, this is overridden and a value equal to the tool radius is used. This is to avoid upstands of material being left between plunges.
Minimum Radius - Set this to the minimum width of channels that you want to the tool to enter. Plunge roughing channels close to the width of the tool is problematic as the 'Lead Out' pull-back from the cut face is obstructed by the left-over cusps of material. (You could also eliminate the lead out by setting its length to 0.)
Recommended Stepover(%) - See the illustration in 'Maximum Forward Step' above. Note that the if you set a value greater than 70%, this is overridden and a value of %70 used. This is to avoid upstands of material being left between plunges.
Stock
Stock Type - Allows you to define the stock volume for the roughing cycle. Choose between the following options:
None - With Stock Type set to None the Roughing cycle will only machine closed pockets. No digitised input required.
Profile - When checked you will be prompted to digitise a closed 2D geometric profile to represent the stock edge. Digitised Input: Lines, arcs, continuous, boss or pocket feature. This option can be used with any flat faced straight walled stock shape. The profile does not necessarily need to be a 'stock' profile (as created using Geometry ► Stock/Fixture).
Feed
Feedrate - The rate of movement for the 'Lead Out' move (as set in the Approach tab - this move is the pull-back that prevents the tool dragging back up the cut face).
Plunge Feed - The rate of movement for the cutting move, down the tool axis.
Speed - Tool spindle speed.