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by JoshM
Sun Feb 17, 2019 10:38 pm
Forum: Python scripting and macros
Topic: translate a point with a vector direction.
Replies: 4
Views: 271

Re: translate a point with a vector direction.

I believe, but am not sure, that you want to create two vertex points, relative to a known input point (M1), and two known vectors(Vec_F1_Norm, Vec_F2_Norm), and a fixed offset distance of 2mm for each, and what is confusing you is that the normal vectors are translated away from the XYZ axes. It wo...
by JoshM
Sun Feb 17, 2019 9:29 pm
Forum: Path/CAM
Topic: Creating CNC roughing and finishing passes
Replies: 103
Views: 6142

Re: Creating CNC roughing and finishing passes

Hi Herb, Just kidding on the "sassy" comment :lol: It's a funny word. I know what you mean about OCL legal limitations no longer being of concern. What I meant was that unless I misunderstood Russ, what he did was use OCL as the engine to derive paths from shapes. What I believe he did was put toget...
by JoshM
Sun Feb 17, 2019 8:56 pm
Forum: Path/CAM
Topic: LibLathe - Lathe Path Generation
Replies: 26
Views: 2895

Re: Lathe Features

Hi Dan, Looks like you're making good progress. I'm glad if anything I offered is helpful. I've put a fair amount of thought and effort into understanding the relationships that exist between cutting edges and job models, so figured if any of it translates and is helpful to you, I'd throw it out the...
by JoshM
Sun Feb 17, 2019 7:21 pm
Forum: Path/CAM
Topic: Creating CNC roughing and finishing passes
Replies: 103
Views: 6142

Re: Creating CNC roughing and finishing passes

Herbk--you're always sassy;) Unless I'm mistaken, Russ has taken the step of putting some controls onto the 3dSurface tool, which leverages OCL. The 3dPpocket operation utilizes a fundamentally different function, and already has inputs for step size and step-down size. One thing I found interesting...
by JoshM
Sun Feb 17, 2019 6:31 pm
Forum: Path/CAM
Topic: LibLathe - Lathe Path Generation
Replies: 26
Views: 2895

Re: Lathe Features

I believe that touches on some of what you are trying to accomplish. I'll leave it there but if there's anything I can help with, don't hesitate to ask.
Regards,
Josh
by JoshM
Sun Feb 17, 2019 6:29 pm
Forum: Path/CAM
Topic: LibLathe - Lathe Path Generation
Replies: 26
Views: 2895

Re: Lathe Features

While I did not do this here, the general approach could be something like: 1. Determine the "profile" shape of the job-model, in the range along the Z-axis, excluding the Chuck. Much as you have done, a cut of a plane, at the lathe's "Y" height, bounded by the stock radius, and length generates a s...
by JoshM
Sun Feb 17, 2019 5:03 pm
Forum: Path/CAM
Topic: LibLathe - Lathe Path Generation
Replies: 26
Views: 2895

Re: Lathe Features

11. Here, I show a path for this insert, that moves the center of the radius of the tool insert's cutting corner. For this example, I drew it in Sketcher by hand. Note that I left space between the Chuck and the insert at that end. Note also that it is probably best to model the chuck--including jaw...
by JoshM
Sun Feb 17, 2019 4:30 pm
Forum: Path/CAM
Topic: LibLathe - Lathe Path Generation
Replies: 26
Views: 2895

Re: Lathe Features

8. For "Along the Length" turning, the shank holds the insert at a fixed angle--30 and 45-degree appear common. Then, knowing the relationship of the shank to the work, defines the relationship of the insert to the work. If constrained orthogonal to the work--the relationship of the insert to the wo...
by JoshM
Sun Feb 17, 2019 3:52 pm
Forum: Path/CAM
Topic: LibLathe - Lathe Path Generation
Replies: 26
Views: 2895

Re: Lathe Features

Hi Dan, Any progress on this? I noticed your post a bit ago, and have meant to touch base. In broad terms, lathe ops are easier than 4th axis milling, or 3d milling because the Job model is radial. But, the trade off is that the tool shapes no longer remain radial. My practical lathe experience is p...
by JoshM
Sun Feb 17, 2019 3:01 pm
Forum: Path/CAM
Topic: Creating CNC roughing and finishing passes
Replies: 103
Views: 6142

Re: Creating CNC roughing and finishing passes

Really nice job Russ! Thanks for sharing that.

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