Hello, I would like help on a part that I am making. I have to place 3 circles to make holes, I placed one which was the simplest since I just had to align it with the radius of 19 and put it on the axis of symmetry. For the other 2, I put them on the shelf, but I don't know where to place them exactly, because I don't see any indication if someone could help me with that.
I finally positioned them at 45 degrees.
Hello 60532,
Your holes are equidistant, you put one in place and then you do a simple repetition. Or you represent the three of them at 120°...
@+.
AR.
7 Likes
Cartoonists will use circular repetition in 98% of cases in this specific case.
On the one hand, don't forget that if you make it your job, your parts can be used by other colleagues, so if everyone uses the same base it's more practical. 
After another method, you can draw a triangle connecting each hole, and the equilateral re-entry also works.
When I have interns I force them to give me 2-3 different methods to achieve the same result and not conform to a single way of doing things, in some cases it can help. (it contradicts my first part of the answer a bit, but that's all me 
)
5 Likes
@60532, it's true that it's intuitive as a quote ... and so you have a perfect representation of what not to do!
That's exactly why we're asking for everything to be listed, to avoid subcontractors having to extrapolate. At least, now you know why 
Otherwise, to go in the direction of friends, indeed a circular repetition does the job. Personally, I never do it like that (sorry @FUZ3D, I'm the remaining 2% ^^) I prefer point repetitions.
Simply because to modify after the fact, to render unequal angles or to add holes, I find it easier.
3 Likes
I'm more of a cow, I let him draw in his own way, then I show him 2-3 techniques and I ask him to redo the piece and apply them. (here circular repetition)
To do and to undo is to work
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I like to go behind, watch what he does and leave saying "ha, that's not how I would have done it"
It puts a moment of stress and doubt and it allows him to assume his choice 
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Hello;
Taking a closer look, @60532 is doing " CAD software training..." " of the Ecole Centrale Paris"...
http://cao.centralesupelec.fr/documents/catia_v5_poly_v3-3.pdf
Looking a little bit, the answer is on the previous page:
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The second lesson of the day is: always look at the elements as a whole.
But I join my colleagues... This is not the best example of a quotation that I have been given to see... let's say that " I wouldn't have done it like that either..." »
Kind regards.
5 Likes
For the repetition, I would say that it depends on the case:
- number of holes determined by an element of the trade, so not likely to vary: if it's 3, 4, 5 or 6, I do everything in the sketch (a polygon that SW knows how to do very well and it works);
- If the NB is large (standard flange but large diameter) or will probably vary, it is repetition.
In this case, the trainee (or colleague) starts by getting a skullcap for not having used the assistant function for the piercing!