How to Snap Points of Edge when Sketching

[4ctech VN]

Hello every one,

I sketch on face of 3D model and I want to sketch point with available edges, but we can't snap point
I can use the Constraits function but it takes more time (I used the Contraint functions to constrain the Sketch to the edges, but that takes a long time when I need to draw a lot of Sketches)
I draw 2 Sketches, but can't set a constraint between 2 Sketch

Another problem is that I can't use the Extrude command with a selection of multiple sketches or regions

I've searched on Alibre for these functions, but I can't find them
Please help me if Alibre can

Many thanks!

 

[HaroldL]

While sketching you may need to use Project to Sketch which will create either sketch or reference geometry from the edges you project from.

Articles

help.alibre.com

Alternately, you can apply a concentric constraint between the circle and the edge of the hole. That should create a reference circle that is mated to the edge of the hole.

Also, you may need to apply tangent constraints manually if that is what you want between the two circles.

Articles

help.alibre.com