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by jruiz
Fri Apr 10, 2020 5:11 pm
Forum: Tutorials and videos
Topic: Sketcher tutorial
Replies: 259
Views: 36176

Re: Sketcher tutorial

what I mean with robustness, is that if any of the n parameter(s) of the sketch is varied by a "non-small" (finite, non-infinitesimal ) quantity, the "form" (or the "structure") of the sketch keep unaltered. Perhaps I should move section 19.2 to the end of the whole constraints part and extend it. ...
by jruiz
Fri Apr 10, 2020 4:14 pm
Forum: Tutorials and videos
Topic: Sketcher tutorial
Replies: 259
Views: 36176

Re: Sketcher tutorial

Suppose a sketch depending on n parameters is fully constrained according to the solver. As we know, what we get is (in general) one of the (many) local solutions the sketch has subject to the imposed constraints. In this context, what I mean with robustness, is that if any of the n parameter(s) of...
by jruiz
Fri Apr 10, 2020 2:40 pm
Forum: Tutorials and videos
Topic: Sketcher tutorial
Replies: 259
Views: 36176

Re: Sketcher tutorial

Thanks for the compliment. You may well create such a topic yourself and elaborate what exactly you mean. I'm not sure what you mean by robustness, do you mean flipping sketches or sketches in the light of topological naming issues? Both seem to be independent from computational effort, which is mo...
by jruiz
Thu Apr 09, 2020 11:36 pm
Forum: Tutorials and videos
Topic: Sketcher tutorial
Replies: 259
Views: 36176

Re: Sketcher tutorial new version is now Sketcher Lecture

Dear Friends of FreeCAD, I finally did it. I have uploaded a new version of the formerly called Sketcher tutorial. I have renamed it to the more appropriate title "A Sketcher Lecture" but it is basically the same contents. But only basically: I have updated quite some details to 0.19 and I have inc...
by jruiz
Wed Apr 08, 2020 6:10 pm
Forum: Tutorials and videos
Topic: Guidelines for videos and tutorials
Replies: 14
Views: 4218

Re: Guidelines for videos and tutorials

My first suggestion is Mention the FreeCAD version used Every tutorial should start with clearly stating for which version it was made. Video tutorials should state it in the description or at least within the first 15 seconds. I think a norm to be adopted would be to start any video tutorial with ...
by jruiz
Tue Apr 07, 2020 2:36 am
Forum: Tutorials and videos
Topic: Updated: Thread for screw tutorial
Replies: 10
Views: 761

Re: Updated: Thread for screw tutorial

chrisb wrote:
Sat Apr 04, 2020 4:42 pm
...It may also be worth a discussion whether in PartDesign additive or subtractive sweeps are better....
Just uploaded a video explaining how to design a bolt using subtractive sweep:
Creating a bolt using substractive sweep
by jruiz
Sat Apr 04, 2020 9:33 pm
Forum: Tutorials and videos
Topic: Updated: Thread for screw tutorial
Replies: 10
Views: 761

Re: Updated: Thread for screw tutorial

chrisb wrote:
Sat Apr 04, 2020 4:42 pm
I guess that real life bolts have neither of these, they rather have a 45° chamfer.
Ok.
by jruiz
Sat Apr 04, 2020 2:25 pm
Forum: Tutorials and videos
Topic: Updated: Thread for screw tutorial
Replies: 10
Views: 761

Re: Updated: Thread for screw tutorial

Another way of cutting up the thread I like best:
by jruiz
Sat Apr 04, 2020 2:15 pm
Forum: Tutorials and videos
Topic: Updated: Thread for screw tutorial
Replies: 10
Views: 761

(Errors when submiting)

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by jruiz
Sat Apr 04, 2020 2:06 pm
Forum: Tutorials and videos
Topic: Updated: Thread for screw tutorial
Replies: 10
Views: 761

Re: Updated: Thread for screw tutorial

chrisb wrote:
Sat Apr 04, 2020 1:49 pm
There is nothing said how threads have to be made using PartDesign. So either it has to be explained in full detail or only the principles should be shown; thats how it is now.
A simple way I found for cuting the ends of the thread is using a groove:

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