read the wiki, its all explained there and is too complex to just endlessly repeat on the forum. Ok, for me yelling you're here, and to send them ...swear word removed again, by moderator.... too :mrgreen: and if Google translat to accept to translate is that the words are "politically" correct :!:...

Salut
You a little load the mule as we say at home,
as you're french, you do not want to go to the french forum that we talk about it between us and we simplify a little bit

Perhaps meme2704 was thinking about the Sketcher point, which indeed cannot be used for such a loft, as it is only construction geometry.

Right, so what is the right method?

Hi
You draw the body of the bochon, you place the holes in the right place with a chamfer, you put the 3 screws in the holes and you make a Boolean subtraction

Hi
The sketches of the tubes are not constrained, they only need a few microns of difference to see this defect

Hi
Base is an empty sketch, Why
Channels is composed of crossed lines, unsupported (self_intersection)
After some repairs I reconstituted your drawing

Hi
The answer is yes, except that a point is not recognized, it is necessary to create a mini circle (r = 0.01mm)

I remove the structural tubes and I get renfort-2
I make a finished carbon copy the internal radii and I get renfort-3
I made a carbon copy because only one file is too big

When you are told that deforestation is putting the planet at risk there is still some septic to refuse it, so
If you did not save the Fc file, it is not recoverable, what did you save

Preferance /color you can change screen from black to with , and lign for black