Ⅰ. Scenario Overview

Common issues encountered during Shaped pipe machining include:

① Generating dual-layer toolpaths when single-layer paths suffice for part cutting;
② Inability to cut through uneven wall thicknesses;
③ Cutting head collisions with pipe walls at recessed corners;
④ Mismatch between drawing orientation and actual machining direction.

Issue ③ can be resolved using 【Toolpath Collision Avoidance】, while issue ④ can be addressed via 【Rotating profile】
Issues ① and ② require editing the cross-section toolpath. This article details how to edit cross-section toolpaths for non-standard pipes.

II. Quick Case Navigation

Picture	Click illustrated links for direct access
	Case 1: B-Type Pipe
	Case 2: Shaped B-Type Pipe
	Case 3: Π-Shaped Pipe

III. Detailed Solution Explanation C

Case 1: B-Type Pipe

As can be seen, after importing this Type B pipe, the following issues exist:

① The toolpath includes cutting extremely thick plates (red arrow location);

② Sharp corners only require a single cut to be removed (area to the right of the red arrow);

③ Concave corners require higher power for cutting (below the protrusion).

Click 【Custom Profile Toolpath Contour】or 【Profile Path】to process the toolpath for non-standard pipes.

(For differences between the two, refer to the explanation in 【Profile Toolpaths】.)

Use <Curve Split> and <Delete> to remove redundant toolpaths.

Employ <Merge Connected Lines>, <Curve Split>, <Reverse>, <Manual Sort>, and other functions to create the following toolpath.

Note: The order of the first and second cuts must not be reversed, otherwise the second cut will cut into the super-thick board.

Operation video:

C

Case 2: Shaped B-Type Pipe

For example, with the following shaped pipe, the imported toolpath appears as shown in the left image, but actual machining requires modifying it to resemble the right image.

After importing the part, click【Custom Profile Toolpath Contour】or 【Profile Path】to enter the editing interface.

Use editing tools such as curve splitting, merging connected lines, layers, and reversing to modify the original contour toolpath.

Approach:

① Since the flange does not require both forward and reverse cutting, delete part of the toolpath;
② The flange has greater thickness than other sections of the tube body, so change its color to apply a different set of process parameters during machining.

For specific operational techniques, refer to the video:

C

Case 3: Case 3: Π-Shaped Pipe

As can be seen, after introducing this Π-shaped tube, the following issues exist:

① The toolpath involves cutting extremely thick plates;
② Dual-layer toolpaths are present;

After processing, ① the toolpath was converted to a single layer; ② Lead-in/lead-out lines were added; ③ The cutting direction was modified via <Edit Contour Vector> to prevent head collisions.

For specific operational techniques, refer to the video:

Actual processing effect: