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by roivai
Fri Jun 02, 2017 7:07 pm
Forum: Path/CAM
Topic: PathCopy, PathArray, PathCompound broken
Replies: 19
Views: 1271

Re: PathCopy, PathArray, PathCompound broken

@roivai, do you want to take a stab at expanding it to have two-dimensional and polar variants? I'll try. What crossed my mind is that how about making it more like a dressup? The current implementation adds a completely separate object, but would it be cleaner if the Array operation would enclose ...
by roivai
Fri Jun 02, 2017 1:22 pm
Forum: Path/CAM
Topic: PathCopy, PathArray, PathCompound broken
Replies: 19
Views: 1271

Re: PathCopy, PathArray, PathCompound broken

So I'm asking for use-cases and expert input? What would you like these tools to do that can't be achieved using other FreeeCAD tools? Some non-expert input: I think at least the PathArray is useful. And having possibilty to create 2D array or polar array would be great! I think that for cutting mu...
by roivai
Thu Jun 01, 2017 8:14 pm
Forum: Path/CAM
Topic: PathCopy, PathArray, PathCompound broken
Replies: 19
Views: 1271

PathCopy, PathArray, PathCompound broken

PathArray, PathCopy and PathCompound seem to be broken as they don't have the ToolController property which is expected by PathPost. I badly needed to create an array so I fixed those in this branch: https://github.com/pekkaroi/FreeCAD/tree/PathArrayTC I fixed it by introducing the ToolController pr...
by roivai
Thu Jun 01, 2017 7:05 pm
Forum: Path/CAM
Topic: HoldingTags Dressup start position
Replies: 4
Views: 649

Re: HoldingTags Dressup start position

I looked at this a bit. This is what I understood from the DressUpHoldingTags: -The additional move to 0,0,0 comes because for creating the tags, the Path "G-code" commands are transformed to a wire object representing the Path. (by PathGeom.wireForPath() ) -Because the Path object does know anythin...
by roivai
Fri May 26, 2017 5:49 am
Forum: Path/CAM
Topic: RampEntry Dressup
Replies: 29
Views: 2721

Re: RampEntry Dressup

Hi, I'm a mechanical engineer and I work sometimes in a very busy machine shop. I think you're over-thinking this ramp operation. Ramp entries are great, but the first consideration is what ramp angle can your cutter handle . This is specified by the cutter manufacturer, and you respect it or you d...
by roivai
Fri May 26, 2017 5:25 am
Forum: Path/CAM
Topic: Helix machining for circular holes
Replies: 70
Views: 7159

Re: Helix machining for circular holes

m0n5t3r wrote:Heh, looks like whoever moved the code to PathUtils missed my last fix, I was wondering why it was drilling the first hole twice again...

Pull request at https://github.com/FreeCAD/FreeCAD/pull/778
That was me! Sorry and thanks for the new fix.
by roivai
Tue May 16, 2017 6:31 pm
Forum: Path/CAM
Topic: Helix machining for circular holes
Replies: 70
Views: 7159

Re: Helix machining for circular holes

Found a weakness with the sorting algorithm. Luckily I had a quick E-Stop finger. ;) When cutting a hole where there are two different diameters at different heights at the same XY location, like one in the picture, the sorting probably picks the order rather randomly? At least in my case, it starte...
by roivai
Sat May 13, 2017 8:22 pm
Forum: Path/CAM
Topic: Conversion to Path.Area
Replies: 14
Views: 1257

Re: Conversion to Path.Area

I tried your branch. I tried to contour this simple shape and I think the path got offset by the tool diameter and not the radius? 2017-05-13-230947_3840x1200_scrot.png The tool I have selected is 6mm and the two holes are also 6mm in diameter. The contour path seems to be 6mm offset. For comparison...
by roivai
Wed May 10, 2017 7:24 pm
Forum: Path/CAM
Topic: RampEntry Dressup
Replies: 29
Views: 2721

Re: RampEntry Dressup

I came up with third method to implement the ramp. I think this minimizes the movement needed for the ramp. On the other hand there is a sudden direction change in the middle of the ramp, which may or may not affect surface finish on that spot. method3.png Example: 2017-05-10-184035_3840x1200_scrot....
by roivai
Mon May 08, 2017 3:43 pm
Forum: Path/CAM
Topic: RampEntry Dressup
Replies: 29
Views: 2721

Re: RampEntry Dressup

Good Morning roivai, But is it much more difficult to make the ramp only to a part of the path? The reason of the question: On little Objects, with short pathes, it's OK to use the whole round for the ramp. But for bigger and more difficult objets it's also wasting machine time, because the the mac...

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