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Menu location |
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Path → Helix |
Workbenches |
Path |
Default shortcut |
None |
Introduced in version |
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See also |
None |
Comanda Helix a adăugat o operație de interpolare elicoidală la lucrare. Mișcarea orară de interpolare Helix de interpolare (G2) în Comenzile G-Code. Comenzile codului G de ieșire în sens antiorar (G3). Procentul de trepte specifică trecerea concentrică ca procent din diametrul sculei.
Extra Offset adds a margin of material to be left unmachined. This is typically to allow a light finishing pass as a separate operation.
Start Radius is not available in the Helix task panel but can be edited directly in the Property editor.
This is the radius of material remaining at the center. By default it is zero, giving a path where the tool just touches the axis of the hole. This produces a central path cutting a hole twice the size of the tool diameter.
If this parameter is set to a negative value, it can allow a smaller helix radius. For example, a negative radius equal to the tool radius will produce a zero radius helix: a.k.a. plunge cut with the endmill, should the tool be suitable. This will work as a first cut in a multi-pass operation but attempting to make a helix path with a tool the same size as the hole in the model is rejected.
The feedrate parameter is constant across all cuts and is based on the position of the tool's axis, thus actual feedrate of the cutting edge of the tool can vary considerably between the inner most cut and the outside surface. If the job dimensions produce a path diameter smaller than the tool diameter, this can lead to much faster cutting speeds than the feedrate given for the tool in the tool controller. This may need to considered when selecting "feed and speeds" in the tool controller for the job.
Also the current implementation only uses the horizontal tool speed for helix paths, even in the case where a tight spiral maybe nearly a vertical cut.
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See also: FreeCAD Scripting Basics.
Example:
#Place code example here.