Draw a sketch on an object

[ProApe]

Hello,

since I didn't get on with the aeroplane fuselage (see the thread in question), I tackled a clockwork, but I'm already stuck again.
I have to put a sketch on the the top side (that with the axle) of the padded little gear wheel, but when I do that, it always turns to the bottom side
What am I doing wrong again?

P.S.:
If I'm overdoing it with my many questions, don't hesitate to tell me!
I am probably one of your best "customers".

Kind regards
ProApe

[papyblaise]

click the "invert" box
but sketch002 is empty

[ProApe]

Sorry, I don't see any "Invert" box when creating a sketch.

What do you mean by "goal sketch002 is empty"?

[papyblaise]

Sorry : but the sketch is empty

[ProApe]

Il est vide parce que je n'ai pas su le placer sur le dessus. Pourquoi la roue se tourne-t'elle sur sa face inférieure lorsque je veux créer un sketch sur le dessus? ça c'est toujours un mystère pour moi!

It's empty because I didn't know how to place it on top. Why does the wheel turn on its underside when I want to create a sketch on top? This is still a mystery to me!

[papyblaise]

Parceque le Z s'oriente toujours vers le "haut", pour voir le plan sans le pignion pour le cacher , tu vas sur l'arbre et cache le pignon (barre espace)

Because the Z is always oriented "up", to see the plan without the pinion to hide it, you go to the shaft and hide the pinion (space bar)

[ProApe]

For the moment I pause this project; it is to complicated to me.