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Manufacturing — CAM › 2D strategies

2D strategies

2D operations cut at levels: the tool moves in X and Y and steps down in Z, following edges and loops you pick. They are for flat-bottomed work — cut-outs, pockets, holes, lettering. Long-press 2D in the rail to choose one. The shared pages — tool, heights, passes, feeds — are in Operation settings; below is what each one adds.

Choosing one

The 2D family: Face, 2D Contour, 2D Pocket, 2D Adaptive, Slot, Trace, Engrave, 2D Chamfer, Bore, Circular and V-Carve
The 2D family: Face, 2D Contour, 2D Pocket, 2D Adaptive, Slot, Trace, Engrave, 2D Chamfer, Bore, Circular and V-Carve
To…Use
Flatten the top of the stockFace
Cut out a part, or cut along its edge2D Contour
Clear a recess with a flat floor2D Pocket, or 2D Adaptive for hard material and deep pockets
Cut a slot the width of the cutterSlot
Follow a line at a fixed depthTrace
Cut lettering or a groove with a V-bitEngrave
Bevel a top edge2D Chamfer
Open a round hole larger than the cutterBore or Circular
Carve lettering or artwork with sharp detailV-Carve

The operations

OperationPick (Drive body)Its own settings
FaceA top face or a closed loop; loops inside it are islandsDirection, Face the stock with a Stock offset, Maximum stepover, Overrun, Pass angle
2D ContourProfile edges or sketch lines; Side Inside, Outside or OnDirection, Corner (Roll, Sharp, Sharp+Loop), Finishing passes, leads, ramp, holding Tabs
2D PocketA closed loop or face; loops inside it are islandsMaximum stepover, Wall finishing, ramp entry (helix by default)
2D AdaptiveAs PocketOptimal load, Climb milling, Rest machining with a Prior tool Ø
SlotAn open path, or a slot-shaped loop (its centre line is used)Ramp or Plunge, Ramp angle
TraceAn open curve or a closed profile; Follow Center or EdgeRamp or Plunge, Pass extension
EngraveAs TraceV-bit Point angle; Depth by Depth (Groove depth) or Width (Groove width)
2D ChamferTop-facing edges; Side Inside, Outside or OnV-bit V angle; chamfer Width, Tip offset, Lead in/out
BoreA cylindrical hole face or a circle sketchPlunge angle, Finishing pass, Multiple passes with Stepover
CircularA cylindrical or conical face — a hole, a pocket or a bossClimb, Multiple passes, Multiple depths (on by default, 1 mm steps), leads
V-CarveClosed loops; loops inside are islandsMax stepover for flat areas; Pre-pocket with its own Area pocket tool

Holding tabs

On 2D Contour, Tabs › Holding tabs leaves small bridges so a cut-out part stays attached to the sheet. Choose the Shape (Rectangular or Triangular), the Width and Height, and space them By distance or By count. Tabs are placed automatically; there is no way to place one by hand.

V-Carve

V-Carve drives a V-bit deeper where a shape is wider, so sharp corners stay sharp. The width of the widest part and the bit's angle set the depth; the Bottom height (Top height − 3 mm by default) caps it. Where a shape is wider than the bit can reach at that depth, the floor is left flat. Pre-pocket clears that flat floor first with a flat end mill: turn it on and pick an Area pocket tool (Pick a pocket tool…).

A region narrower than the bit can enter is refused: Region too small for the V-bit — v-carve not created.

Refusals

MessageFix
Can't chamfer a bottom edge — a 2D chamfer reaches the edge from the top (+Z). Pick a top-facing edge.Pick an edge on top
Text can't be slotted — use Trace, Engrave or V-Carve for textUse one of those
Construction geometry can't be machined — pick solid (non-construction) geometryPick ordinary geometry
That curve isn't part of a closed profile — close the loop to machine it as a regionClose the sketch loop
Nothing to face — pick a boundary, or set a stock size for the Tool RunPick a face, or size the stock
Edge follow needs closed profiles — Center mode follows open curvesUse Center
Engrave depth is zero — set a groove depth / width (Passes tab)Set the depth or width

Still stuck? Contact support or email support@primemotioncnc.com.