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CAM Pocket3D
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| Menu location
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| CAM → 3D Pocket
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| Workbenches
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| CAM
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| Default shortcut
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| None
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| Introduced in version
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| -
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| See also
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| None
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Description
The
CAM Pocket3D command inserts a 3D Pocket object into the Job. This operation takes into account the bottom surface of the pocket, as well as selected walls that are not vertical. In its current state, this operation is used to rough out a pocket with non-vertical walls and/or non-horizontal bottom. A common finishing technique is to use a ball end mill with the experimental
3D Surface operation.
Sample image of 3D Pocket operation used to clear cylindrical battery holder.
Usage
Creating a 3D Pocket
- From within a Job, select one or more Faces from the Job Model to include as the Base Geometry.
- There are several ways to invoke the command:
- Press the
Pocket 3D button.
- Select the CAM →
Pocket 3D option from the menu.
- Choose a Tool controller from the pop up selection dialogue window.
- Add or subtract Base Geometry elements as needed to configure the Operation.
- Check the Depths tab to ensure the Start Depth, Finish Depth, and Step Down percentage are correct. The Final Depth is determined by the Body Geometry selection and is not modifiable.
- Check the Heights tab to ensure the Safe and Clearance Heights are appropriate.
- Check the Operation tab where the Tool controller can be re-selected, the Cut mode can be configured for Climb or Conventional milling, the Pattern can be set, the Step Over percentage can be adjusted, and Pass Extension can be applied.
- Click Apply to observe the milling path for the passes of the Operation. Adjust parameters until satisfied with the Operation.
- Click OK to save the Operation.
Notes
- All paths generated from this operation are based on a standard end mill using the diameter of the tool you selected for this 3D Pocket operation.
- Ball end mills and other shapes are not respected for path generation even if selected as the tool for this operation.
Options
- Use the 데이터Adaptive Pocket Finish property to attempt to minimize air milling below a 3D Pocket in cases where the pocket is a hole through the model.
- Use the 데이터Adaptive Pocket Start property to attempt to minimize air milling upon entry to the pocket. For example, look at the sample image above in the Description section of this page. In order to reduce the air milling above that 3D Pocket, toggle this property to True and the paths will begin closer to the pocket, much nearer to where the pocket actually begins. See the following image and note the difference in the path start height. The air milling is reduced.
Sample image of 3D Pocket operation used to clear cylindrical battery holder with the Adaptive Pocket Start enabled in order to reduce air milling upon entry.
- If you wish to process the entire model and stock as a whole, use the 데이터Process Stock Area property set to True with no Base Geometry selected.
Properties
Data
Base
Note: It is suggested that you do not edit the Placement property of path operations. Rather, move or rotate the CAM Job model as needed.
- 데이터Placement: Overall placement[position and rotation] of the object - with respect to the origin (or origin of parent object container)
- 데이터Angle: Angle in degrees applied to rotation of the object around Axis property value
- 데이터Axis: Axis (one or multiple) around which to rotate the object, set in sub-properties: X, Y, Z
- 데이터X: X-axis value
- 데이터Y: Y-axis value
- 데이터Z: Z axis value
- 데이터Position: Position of the object, set in sub-properties: X, Y, Z - with respect to the origin (or origin of parent object container)
- 데이터X: X-distance value
- 데이터Y: Y-distance value
- 데이터Z: Z-distance value
- 데이터Label: User-provided name of the object (UTF-8)
Depth
- 데이터Clearance Height: The height needed to clear clamps and obstructions
- 데이터Final Depth: Final Depth of Tool- lowest value in Z
- 데이터Finish Depth: Maximum material removed on final pass.
- 데이터Safe Height: The above which Rapid motions are allowed.
- 데이터Start Depth: Starting Depth of Tool- first cut depth in Z
- 데이터Step Down: Incremental Step Down of Tool
Face
- 데이터Offset Pattern: Clearing pattern to use. (Select in which manner the horizontal movements should be done.)
Path
- 데이터Active: Make False, to prevent operation from generating code
- 데이터Base: The base geometry for this operation
- 데이터Comment: An optional comment for this Operation
- 데이터Coolant Mode: The coolant mode for this operation.
- 데이터Cycle Time: The cycle time estimation for this operation.
- 데이터Tool Controller: Defines the Tool controller used in the Operation
- 데이터User Label: User assigned label
Pocket
- 데이터Adaptive Pocket Finish: Use adaptive algorithm to eliminate excessive air milling below planar pocket bottom.
- 데이터Adaptive Pocket Start: Use adaptive algorithm to eliminate excessive air milling above planar pocket top.
- 데이터Cut Mode: The direction that the toolpath should go around the part ClockWise (CW) or CounterClockWise (CCW)
- 데이터Extra Offset: Extra offset to apply to the operation. Direction is operation dependent.
- 데이터Handle Multiple Features: Choose how to process multiple Base Geometry features.
- 데이터Keep Tool Down: Attempts to avoid unnecessary retractions.
- 데이터Min Travel: Use 3D Sorting of Path
- 데이터Process Stock Area: Process the model and stock in an operation with no Base Geometry selected.
- 데이터Start At: Start pocketing at center or boundary
- 데이터Step Over: Percent of cutter diameter to step over on each pass
- 데이터Zig Zag Angle: Angle of the zigzag pattern
Rotation
Note: Rotation is not available for 3D Pocket as of 0.19.
- 데이터Enable Rotation: Enable rotation to gain access to pockets or areas not normal to Z axis.
Start Point
- 데이터Start Point: The custom start point for the path of this operation.
- 데이터X: X-distance value
- 데이터Y: Y-distance value
- 데이터Z: Z-distance value
- 데이터Use Start Point: Make True, if manually specifying a Start Point. Set the start point in the property data Start Point field.
View
Empty
Scripting
See also: FreeCAD Scripting Basics.
Example:
#Place code example here.
CAM
- Basic Operations: Profile, Pocket Shape, Face, Helix, Adaptive, Slot, Drilling, Tapping, Engrave, Deburr, Vcarve
User documentation
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