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by JoshM
Thu Jan 03, 2019 9:21 pm
Forum: Path/CAM
Topic: Helix Contouring
Replies: 9
Views: 827

Re: Helix Contouring

Nice addition Julian!
Josh
by JoshM
Wed Jan 02, 2019 8:40 pm
Forum: Path/CAM
Topic: Waterline milling update
Replies: 39
Views: 2830

Re: Waterline milling update

I hear you--I've done similar for Delrin jobs. Not sure in wood if applicable, but ballnose makes less sanding. The curious thing that I've found is that there's a lot of beauty in geometry. Common available tool types--Square Endmill, Ball Endmill, Rounded Edge, Corner Round Mill, Tapered, Chamfer-...
by JoshM
Wed Jan 02, 2019 12:23 am
Forum: Path/CAM
Topic: Waterline milling update
Replies: 39
Views: 2830

Re: Waterline milling update

Hi Julian, I'm glad for your perspective, and have hoped to chat with you since you started posting. I take your point on mesh superiority, and I don't have an interest in working at an inferior approach. But, after about a year of playing with the concepts, I have found the effort engaging and have...
by JoshM
Tue Jan 01, 2019 6:04 am
Forum: Path/CAM
Topic: Waterline milling update
Replies: 39
Views: 2830

Re: Waterline milling update

And here's another example, of a relatively complex ramped shape with a 5mm square mill at 12.5%.
ToolPaths_14.png
ToolPaths_14.png (150.64 KiB) Viewed 861 times
by JoshM
Tue Jan 01, 2019 5:35 am
Forum: Path/CAM
Topic: Waterline milling update
Replies: 39
Views: 2830

Re: Waterline milling update

I fixed a few things--toroid basis was one. I'm very pleased how this is looking. Here's a more complex shape--a toroid at an angle, cut by sphere, cone, and cylinder. Here it is with 25% step-over: PlaneToolPaths_12.png And here with 12.5% step-over. PlaneToolPaths_12.png The process times were 121...
by JoshM
Mon Dec 31, 2018 10:55 pm
Forum: Path/CAM
Topic: Waterline milling update
Replies: 39
Views: 2830

Re: Waterline milling update

Preliminary Toroid Object looks promising. Here's an example of it in 50% step-over:
PlaneToolPaths_10.png
PlaneToolPaths_10.png (240.22 KiB) Viewed 893 times
and at 25% step-over:
PlaneToolPaths_11.png
PlaneToolPaths_11.png (254.38 KiB) Viewed 893 times
by JoshM
Mon Dec 31, 2018 9:10 pm
Forum: Python scripting and macros
Topic: {calculating BSpline?} Solved
Replies: 0
Views: 149

{calculating BSpline?} Solved

I need the functionality of the Draft.makeBSpline([points,]), minus drawing the object. I am looping through a Sliced Face, Discretizing the edges into Points, and creating points offset relative to the discretized points. Drawing the BSplines sequentially adds significant time. I've looked a bit at...
by JoshM
Mon Dec 31, 2018 8:53 pm
Forum: Path/CAM
Topic: Waterline milling update
Replies: 39
Views: 2830

Re: Waterline milling update

Here's an example of what I alluded to when I mention that Plane Objects can get skewed in some cases. Here, I selected the edges of a planar side wall and the result is misaligned. Interesting, as the Edges generated by this are correct... PlaneToolPaths_8.png Note that if I grab the Face itself, i...
by JoshM
Mon Dec 31, 2018 8:25 pm
Forum: Path/CAM
Topic: Waterline milling update
Replies: 39
Views: 2830

Re: Waterline milling update

At the moment, because of the BSpline draw time, the operation is fairly slow, so while playing with it, I have set the Step-Over at 50% of the tool-radius. Here's a Large Cone, and we see the good and the unfinished. Note the two plane-object faces due to the partial cone. The one facing "downward"...
by JoshM
Mon Dec 31, 2018 8:18 pm
Forum: Path/CAM
Topic: Waterline milling update
Replies: 39
Views: 2830

Re: Waterline milling update

Here, the Toolpath Pattern is Extruded through the upper Solid of the Sliced Job model. This works reliably where parallel projecting of edges fails in some instances. It also works on Plane-objects, across all cases, where directly generating planar toolpatterns on the surface fails as in some inst...

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