Advanced Feedrates
Introduction
This topic explains the options found in the Advanced Feedrates page of the Mill 2 Axis Wizard for all operations.
Advanced Feedrates
General Overrides
- Convert Rapid to Feed
- The Rapid moves are left as rapid moves. 
- The Rapid moves are changed to feed moves and set to the feedrate specified in the text field.
Leads
- Lead-in Feedrate %
- The Lead-in moves are left as rapid moves. - The Lead-in moves are set to the feedrate specified in the text field.
- Lead-out Feedrate %
- The Lead-out moves are left as rapid moves. - The Lead-out moves are set to the feedrate specified in the text field.
Note: These options are not available for Pocket, Engrave, or Plunge Rough operations, as they do not have Leads.
Direct/Blend Spline Links
- Link Feedrate
- The Link moves are left at the normal feedrate. - The Link moves are set to the feedrate specified in the text field.
Note: These options are only available when using the Advanced Pocket patterns.
Adaptive Feedrate
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Standard - uses the feedrate set in the tool page.
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Adaptive (Volume Based) - enable an automatically adaptive feedrate of the tool depending on the engagement volume in the material. Minimum feedrate is applied in case of 100% tool engagement. Use the Min Feedrate % and the Max Feedrate % to set the desired range.
Note: The Adaptive option is only available when using the Advanced Pocket patterns.
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Radial Chip Thinning - attempts to achieve a constant chip thickness by adjusting the cutting feedrate based on radial depths of cut.
Note: The Radial Chip Thinning option is only available when using the Advanced Pocket patterns.
- Min Feedrate % - allows you to set a minimum feedrate to be used when the Adaptive, or Radial Chip Thinning option is in use.
- Max Feedrate % - allows you to set a maximum feedrate to be used when the Adaptive, or Radial Chip Thinning option is in use.
Note: The Max Feedrate option is only available when using the Adaptive Roughing Pocket pattern.
- Conventional Milling Feedrate
- The Lead-out moves are left as rapid moves. - The Lead-out moves are set to the feedrate specified in the text field.
Note: The Conventional Milling Feedrate option is only available when using the Adaptive Roughing Pocket pattern, without the Cut Direction set to Oneway.
Note: The following section is available only for the following operations:
• Profile Rough
• Profile Finish
• Pocket
• Engraving
• Chamfer Mill
• Corner Rounding
Corner Slow Down
- Allows users to break their toolpath into smaller segments in the corners in order to apply a reduction in the feed rate.
- The toolpath and feedrates remain unchanged.
- Internal/External Corners
- All Corners - applies the slow down to every corner.
- External Corners - applies the slow down to only outside corners.
- Internal Corners - applies the slow down to only inside corners.
- All Corners - applies the slow down to every corner.
- Min Angle - determines the minimum angle change difference between two entities to determine whether they should be handled as a corner.
- Max Angle - determines the maximum angle change difference between two entities to determine whether they should be handled as a corner.
- Distance from Corner - is the distance from the detected corner at which the entity will be broken, and the slower feed rate applied.
- Feedrate % - is the percentage of the cutting feedrate to be applied to the portions that will be slowed down.
Advanced
- Arc Look Ahead Count - Since in most cases arcs are tangent to the previous toolpath entity, and would result in no angle difference, this allows you to check the entity, or entities, beyond the arc in an attempt to find a line with which an angle could be detected.
Important: In the images above, notice the toolpath is not handled as a corner until we look beyond the tangent arc to notice an angle is encountered. Also note that the arcs that are counted are the arcs that exist in the toolpath, and not that of the original geometry.
- Max Corner Radius - determines maximum corner radius that is considered for Corner Slowdown.
Note: This value only applies when Look-Ahead is set to 1, 2 or 3 entities.
Tip: Typically, a large radius would not be considered a corner.
- # of Divisions - determines how many sections the corner piece will be divided into. The feed rates will be linearly slowed down along each entity to the Feedrate % value used above.
- Apply to Links - The corner slowdown is not applied to the link moves of the toolpath. - The corner slowdown is applied to both the cutting moves, and the link movements between cutting moves.
