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by JoshM
Mon Nov 26, 2018 1:17 am
Forum: Path/CAM
Topic: CNC Lathe and 4th-axis milling...
Replies: 142
Views: 13310

Re: CNC Lathe and 4th-axis milling...

Hi jmr, I'm sorry for delayed response. Truth told, I'm not sure. When you say tilting table, are you differentiating the job type--as opposed to pseudo lathe ops, like I had shown? In either case, the 4h axis is the same from a G-Code perspective, but the job strategy is very different. I've looked...
by JoshM
Thu Nov 22, 2018 1:14 am
Forum: Path/CAM
Topic: Waterline machining proposals
Replies: 33
Views: 2937

Re: Waterline machining proposals

Out of curiosity, I created processed a Cut Sphere Job, with a BallEndMill using the algo I have worked on. I make a face on the top of the stock model from the OuterWires of the Radial offset ToolSurface. From that, I use PathFeatureArea to create a Zig-Zag or Offset pattern onto the stocktop. The ...
by JoshM
Tue Nov 20, 2018 11:28 pm
Forum: Path/CAM
Topic: Pattern Types
Replies: 8
Views: 727

Re: Pattern Types

If you select the "MillFace" operation in the model tree a large number of parameters will show up in the property panel below the tree. One of those parameters will be "Keep Tool Down", and its default value is "false". Change to "true", and the number of tools retractions will be reduced quite a ...
by JoshM
Tue Nov 20, 2018 11:25 pm
Forum: Path/CAM
Topic: Waterline machining proposals
Replies: 33
Views: 2937

Re: Waterline machining proposals

the order G01 permanent as long you set no other G order. I know what you're driving at. G01 is Modal, so feed-rate remains constant. G02/G03,etc are also Modal so you can run those and for no specified Feed-Rate it stays at speed. The Post-Processors have a MODAL flag, which I believe drops the ex...
by JoshM
Fri Nov 16, 2018 11:38 pm
Forum: Path/CAM
Topic: Let's talk about fixtures.
Replies: 14
Views: 1153

Re: Let's talk about fixtures.

Hey Brad, I use offsets--less now that I added a vacuum table. However, for CNC Lathe, they are pretty useful. Give each tool it's own work-offset, then whatever the XYZ offsets, all tools can work with same relative coordinates. I know lathe has been on your wanna do list, and assume there the Tool...
by JoshM
Fri Nov 16, 2018 2:26 am
Forum: Path/CAM
Topic: Waterline machining proposals
Replies: 33
Views: 2937

Re: Waterline machining proposals

Hey Julian, Thrilled to see your post. I've looked at this for about a year now and have just recently given up. Now, suppose someone says they want the machining to happen on the "real" surfaces, instead of these crappy triangles. Well, a CAD system has dozens of different parametric surfaces. Whic...
by JoshM
Wed Oct 24, 2018 7:48 pm
Forum: Path/CAM
Topic: Creating CNC roughing and finishing passes
Replies: 104
Views: 7605

Re: Creating CNC roughing and finishing passes

Hi Kunda1, A fair amount of progress, though I've dropped back to rework some. I've mostly figured out how to handle this, but I needed to redo some work/approach. I'm using the Sketcher now because it allows me to use Constraints, it's easy to visualize for development and troubleshooting, and if l...
by JoshM
Wed Oct 10, 2018 2:32 am
Forum: Path/CAM
Topic: Creating CNC roughing and finishing passes
Replies: 104
Views: 7605

Re: Creating CNC roughing and finishing passes

Hey JM, :D Keep up the valuable/great -- work/investigation! Honestly though, I think regular roughing, followed by a surface pass is probably the best option. Depending on the capability of your machining environ, workflow will vary. There is no regular. No!? Part workflow Example: Hog/Rough with ...
by JoshM
Tue Oct 09, 2018 2:25 am
Forum: Path/CAM
Topic: Creating CNC roughing and finishing passes
Replies: 104
Views: 7605

Re: Creating CNC roughing and finishing passes

In looking at it further, the answer is to project planar pocket paths onto the same surface, with center section cut out, according to radial offset, at step height. In concept, by bounding out the tall sections when generating stepped passes, we get the best of both worlds. Job23.png Honestly thou...
by JoshM
Tue Oct 09, 2018 12:35 am
Forum: Path/CAM
Topic: Creating CNC roughing and finishing passes
Replies: 104
Views: 7605

Re: Creating CNC roughing and finishing passes

There's one issue other than Herbk's point that I would mention, Bill--and BTW, nice depiction there! If you watch the steps, there are redundant passes over the same path lines as the sphere is cut away. I came online ask thoughts on how it should be handled and note your post. If in fact the algo ...

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