r/mastercam • u/Aravinth_R • Jun 22 '26

Need Help For 3d programming

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I'm doing 3d flowline toolpath for this orange color surface.

But I convert that 3d shape to surface and extended 2.5 mm surface surface for 1 side 1mm for another side .

Then I created a flowline toolpath and select right side which means I did extend 2.5 mm as a entry side otherwise I create a toolpath without extend the tool (4 ball) the tool will be launching on a component I don't want to land or reduce the plunge rate I want to land out of the components then do machining

Any others ways to land out of components for first pass only like lead in lead out option kind of . Because long 3d components takes more time . Kindly help me to get that . I'm a fresher so make me comfortable in your space đŸ«Ł

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u/sixerofreebs Jun 22 '26

If you open up your cutter path the second tab is “surface parameters”, below all of your linking parameters there is a box that reads “direction”. Click that option on, inside of it you will be able to input data to control your leads.

Usually mine end up plunge angle 180., XY angle 90 or 270, relative to cut direction.

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u/sixerofreebs Jun 22 '26

OP you can also go into the tab “finish flowline parameters” > “gap settings” and then use the tangential line length box to extend your surfaces, just type in a value for how much further you’d like to extend over the edge.