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by GeneFC
Fri Aug 16, 2019 8:59 pm
Forum: Path/CAM
Topic: Rotated holes result in different sized Helix tool paths.
Replies: 61
Views: 3847

Re: Rotated holes result in different sized Helix tool paths.

You are wrong again. I am usually wrong. Just ask my wife. :lol: How do you explain fact that I always get the exact 4.0000 mm in your little exercise instead of 3.997 or some other imprecise number? I did not try your "fix" but was just using the long-standing FreeCAD algorithms. Have you read the...
by GeneFC
Thu Aug 15, 2019 11:33 pm
Forum: Help on using FreeCAD
Topic: [Feature Request] Independent views for each file
Replies: 24
Views: 920

Re: [Feature Request] Independent views for each file

Did you see my point? Do you have any idea on how to improve it? I would be so glad to see these changes in the next release. Not really a direct answer to your request, but I often open two independent instances of FreeCAD in order to use one as a reference while working in the other one. For many...
by GeneFC
Thu Aug 15, 2019 11:16 pm
Forum: Path/CAM
Topic: Rotated holes result in different sized Helix tool paths.
Replies: 61
Views: 3847

Re: Rotated holes result in different sized Helix tool paths.

Some people seem to be missing the point. It is NOT just "visualization" that is controlled by the tessellation parameters. OCC does real computations based on those settings, not just display. If you want to make a special case for every conceivable shape and every operation in order to get around ...
by GeneFC
Thu Aug 15, 2019 3:51 pm
Forum: Path/CAM
Topic: Rotated holes result in different sized Helix tool paths.
Replies: 61
Views: 3847

Re: Rotated holes result in different sized Helix tool paths.

You will have a rough time succeeding with FreeCAD if you insist on sticking with the default parameters. Don't forget that many, if not most, FreeCAD users are interested in topics like architecture. One millimeter is probably good enough for those cases. User parameters are "adjustable" because di...
by GeneFC
Thu Aug 15, 2019 1:12 pm
Forum: Path/CAM
Topic: Rotated holes result in different sized Helix tool paths.
Replies: 61
Views: 3847

Re: Rotated holes result in different sized Helix tool paths.

Thanks for posting another workaround I do not consider this a "workaround". FreeCAD is built on the OCC computational kernel. Everything is an approximation at some level. It is not really possible to work on a perfect circle; there is always some uncertainty, approximation, truncation, tessellati...
by GeneFC
Thu Aug 15, 2019 2:44 am
Forum: Path/CAM
Topic: Rotated holes result in different sized Helix tool paths.
Replies: 61
Views: 3847

Re: Rotated holes result in different sized Helix tool paths.

I ran through this sequence of operations starting at step 2 and I saw exactly 4.000 mm for the diameter. I could not see any vertices before or after recompute. Why??? The same problem comes up again and again. If someone needs precision in a case like this then it is mandatory that the "Tessellati...
by GeneFC
Wed Aug 07, 2019 12:44 pm
Forum: Path/CAM
Topic: Transitions between regions
Replies: 28
Views: 1315

Re: Transitions between regions

It is common on the forum that someone comes on board and wants to change various items to match their personal preferences. This renaming effort seems to be exactly that "Engage height" means nothing to me. It would need to be defined and learned just like every other term, such as safe height or c...
by GeneFC
Sat Aug 03, 2019 11:16 pm
Forum: Path/CAM
Topic: Transitions between regions
Replies: 28
Views: 1315

Re: Transitions between regions

yes it does, for g1 moves not g0 moves. spindel-at-speed dose not pause g0 moves in linuxcnc. the use of g0 to go to stock-top is a freecad issue I do not believe anyone has ever suggested that there should be a G0 down to the top of the workpiece. That would be relatively insane. However, there is...
by GeneFC
Sat Aug 03, 2019 9:25 pm
Forum: Help on using FreeCAD
Topic: Bug submission guidelines
Replies: 21
Views: 42036

Re: Bug submission guidelines

Following the directions in the first post of this topic is still the correct method for "bugs". If you get to the third box, go ahead and create a topic in the Help fourm. The responders will either help find your error or will agree that the crash is really a bug. Don't go straight to the Mantis t...
by GeneFC
Sat Aug 03, 2019 9:07 pm
Forum: Path/CAM
Topic: Transitions between regions
Replies: 28
Views: 1315

Re: Transitions between regions

also even when the stock is touched off perfectly, that is to at least 0.01mm precision, rapiding to the stock with g0 will cause issues because the tool may not be spinning yet! the fixture operation, among others, dose this! Your machine controller must take care of that issue, not FreeCAD. I kno...

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