Search found 876 matches

by freman
Tue Jan 28, 2020 12:46 pm
Forum: Path/CAM
Topic: dressup losing speeds and adding unsafe cuts.
Replies: 8
Views: 151

Re: dressup losing speeds and adding unsafe cuts.

Well spotted. I just set z boundaries to 4mm ( safe is 2; clearance is 3 ). The crash path has gone. Clearly boundary should not be clipping safe/clearance heights and this is a spuriously inserted cut. Incidentally the actual stock boundary is at z=0, so the cut to z=1 is pointless. This may be rel...
by freman
Tue Jan 28, 2020 8:57 am
Forum: Path/CAM
Topic: dressup losing speeds and adding unsafe cuts.
Replies: 8
Views: 151

Re: dressup losing speeds and adding unsafe cuts.

My apologies, I had not noticed is was 1 and -1 :oops: probably since z=1 is not in the contour at all I must have been assuming it was the first cut in the path at -1. Which raises the questions , what is the this z=+1 level all about ? I thought the first line which is crashing the tool was a one-...
by freman
Tue Jan 28, 2020 5:58 am
Forum: Path/CAM
Topic: dressup losing speeds and adding unsafe cuts.
Replies: 8
Views: 151

Re: dressup losing speeds and adding unsafe cuts.

Thanks for the confirmation, I'll try to find time to open a bug report. For the record, the second of the three lines also needs the horizontal cut speed too. This is not just one line I had to go through the whole file by hand adding speeds to nearly every arc which was cut. There was just the las...
by freman
Mon Jan 27, 2020 11:12 pm
Forum: Path/CAM
Topic: dressup losing speeds and adding unsafe cuts.
Replies: 8
Views: 151

Re: dressup losing speeds and adding unsafe cuts.

Thanks Chris. Firstly, I asked for a boundary dress up so if it is adding ramps there is a problem. Secondly: G1 Z1.000 F120.000 G1 X51.622 Y51.598 Z-1.000 G2 X65.818 Y31.559 Z-1.000 I-51.610 J-51.610 K0.000 there is no Z change in the 2nd and 3rd lines there, why are they not getting the horizontal...
by freman
Mon Jan 27, 2020 7:03 pm
Forum: Path/CAM
Topic: dressup losing speeds and adding unsafe cuts.
Replies: 8
Views: 151

dressup losing speeds and adding unsafe cuts.

Hi, I have been using boundary dressup on arcs and it seems it is losing G2 speeds on some lines. The contour gets expected F600 but when I add the dressup it hobbles around at F120 which is the z cutting speed. M3 S20000.0 (Finish operation: T8: 8mm endmill) (Begin operation: Contour+4) (Path: Cont...
by freman
Sun Jan 26, 2020 9:47 pm
Forum: Path/CAM
Topic: 3D Surface - Face Selection (New feature)
Replies: 57
Views: 2139

Re: 3D Surface - Face Selection (New feature)

The reversal issue discussed there shouldn't be an issue here. I've coded in consistent direction management at each layer. I appreciate direction management, that is huge and puts 3Dsurface ahead of 2.5D tools in that respect. However, the request for reversal over there was to do with starting at...
by freman
Sun Jan 26, 2020 2:22 pm
Forum: Path/CAM
Topic: problem with the finish pass in pocket when milling a b-spline or ellipse
Replies: 8
Views: 362

Re: problem with the finish pass in pocket when milling a b-spline or ellipse

Thanks. How does this 0.0001 relate to Job geometry tolerance ? I think this tiny offset should use or be related to a named constant, not the rather arbitrary small value you tested. Does the workaround still work if the user has increased the tolerance? Could this tweak value be the std "very smal...
by freman
Sun Jan 26, 2020 2:04 pm
Forum: Path/CAM
Topic: 3D Surface - Face Selection (New feature)
Replies: 57
Views: 2139

Re: 3D Surface - Face Selection (New feature)

I can add a few line there to combine data from on complete loop with the next data set if it is also a complete loop - and continue this until an arc is identified. It's small detail on finish but I think the link move probably needs to be : move x ; move z. I'm not sure what you had in mind but i...
by freman
Sun Jan 26, 2020 3:21 am
Forum: Path/CAM
Topic: 3D Surface - Face Selection (New feature)
Replies: 57
Views: 2139

Re: 3D Surface - Face Selection (New feature)

Thanks for picking up on my suggestion, that hemispherical path looks very nice. I'll probably wait until this gets merged before testing since I'm trying to get on with some h/w improvements. Thanks for the effort, this looks like significant improvements to the 3D capabilities of FreeCAD.
by freman
Fri Jan 24, 2020 1:01 am
Forum: Path/CAM
Topic: 3D Surface - Face Selection (New feature)
Replies: 57
Views: 2139

Re: 3D Surface - Face Selection (New feature)

Thanks for all these new features Russ. Now I'll have to make something to cut ! In terms of suggestions, I'd like to see some way of having more control over cut direction, like zig-zag without the zag. ;) If the tool would lift and come back so it always cuts in the same direction that would work ...