Search found 456 matches
- Thu May 16, 2019 11:06 pm
- Forum: Path/CAM
- Topic: Waterline milling update
- Replies: 90
- Views: 23046
Re: Waterline milling update
Here's an example of what I've been working toward. Until now I've been printing out vectors and spot checking to try to get the basic algorithm working. I trapped most of the issues and now have drawn out the results for some tool path segments. I implemented it poorly, and instead of adding all li...
- Fri May 10, 2019 12:46 pm
- Forum: Path/CAM
- Topic: Waterline milling update
- Replies: 90
- Views: 23046
Re: Waterline milling update
Amazing stuff going on with Path these days, and in large part due to collaborations Russ has led. Bravo on getting things done. My focus lately has been on facet sampling mesh in a non-linear way, and I struggled for a while trying to reconcile the vector math to get the algo correct. A couple of d...
- Thu May 02, 2019 7:47 pm
- Forum: Path/CAM
- Topic: 3D Surface: 4th-axis Integration and more...
- Replies: 80
- Views: 16803
Re: 3D Surface: 4th-axis Integration and more...
I've continued work on an alternative mesh sampling approach. I've been attempting to implement a non-linear sampling algorithm. The concept is relatively simple, the execution requires care. For a moderately large mesh--around 3k facets, 6k facet edges--it is possible to analyze the relationship of...
- Sat Mar 30, 2019 6:21 pm
- Forum: Path/CAM
- Topic: CNC Lathe and 4th-axis milling...
- Replies: 142
- Views: 34365
Re: CNC Lathe and 4th-axis milling...
There’s a compromise that I’ve been playing with that likely speeds up path calculation. Linear sampling isn’t ideal for a mesh. If I create a plane from Stocktop to bottom along each zig-zag segment, then iterate through all facets in the mesh, I can use vectors to calculate the distance from each ...
- Mon Mar 25, 2019 12:31 pm
- Forum: Path/CAM
- Topic: CNC Lathe and 4th-axis milling...
- Replies: 142
- Views: 34365
Re: CNC Lathe and 4th-axis milling...
The primary reasons for specifying step-over are to: -Ensure that the tool is not subject to excess torque. -Ensure that the model is cut with adequate resolution. Since the step-over is "true" at the surface of the model, you are meeting the needs of the 2nd reason. Since you know the arc...
- Thu Mar 14, 2019 6:16 pm
- Forum: Path/CAM
- Topic: CNC Lathe and 4th-axis milling...
- Replies: 142
- Views: 34365
Re: CNC Lathe and 4th-axis milling...
Due to my lack of knowledge and expertise in this area of CNC milling and lathe processes, I am reaching out to you. I noticed that the existing FC tool controller[TC] has some fields for some tools that are extraneous to the tool, as I understand the tools. I Hi Russ, I'm no expert, but I also not...
- Sun Mar 10, 2019 8:29 pm
- Forum: Path/CAM
- Topic: CNC Lathe and 4th-axis milling...
- Replies: 142
- Views: 34365
Re: CNC Lathe and 4th-axis milling...
Hi Russ, Great work--really appreciate what you're up to! I'm trying to take a look at your script now. I haven't gotten 4th axis, but I'm amazed at what's been done so far with harnessing OCL to fit into PathWB better. If I recall correctly, AWallin had built in various tool-tip types--end, ball, c...
- Sun Mar 10, 2019 3:50 am
- Forum: Path/CAM
- Topic: Waterline milling update
- Replies: 90
- Views: 23046
Re: Waterline milling update
The difference in the two sides is because of mesh deformation in the offset mesh. Still looking at fix for that.
I tested against a toroid at an angle, and was pleasantly surprised.
I tested against a toroid at an angle, and was pleasantly surprised.
- Sat Mar 09, 2019 10:57 pm
- Forum: Path/CAM
- Topic: Waterline milling update
- Replies: 90
- Views: 23046
Re: Waterline milling update
Hey Chris :D . I think I'm onto something worth exploring further here. I tried a 3rd strategy. I made an offset mesh per endmill tool shape, and used the projection onto it. It quickly generates tool paths where the tool tip should be. I was momentarily perplexed because one side is imperfect at th...
- Sat Mar 09, 2019 5:00 am
- Forum: Path/CAM
- Topic: Waterline milling update
- Replies: 90
- Views: 23046
Re: 3d surface milling update
Thanks to @JulianTodd, I've explored this a bit further. I have a hacked up script--attached--that has allowed me to play with mesh offsetting. It takes a minute or more to run the attached model. This is not optimized. In short, a 2d Path-FeatureArea is attached to the stock top. The wire is discre...